ACS Nano最新文献_第6页

Rapid Wide-Field Correlative Mapping of Electronic and Vibrational Ultrafast Dynamics in Solids

IF 17.1 1区材料科学

ACS Nano Pub Date : 2025-02-10 DOI: 10.1021/acsnano.4c15397

Rihan Wu, Yaqing Zhang, Md Shahjahan, Elad Harel

{"title":"Rapid Wide-Field Correlative Mapping of Electronic and Vibrational Ultrafast Dynamics in Solids","authors":"Rihan Wu, Yaqing Zhang, Md Shahjahan, Elad Harel","doi":"10.1021/acsnano.4c15397","DOIUrl":"https://doi.org/10.1021/acsnano.4c15397","url":null,"abstract":"Coupling between electronic and vibrational degrees of freedom in solids is responsible for many fundamental material properties, including superconductivity, ferroelectricity, high thermal conductivity, and indirect bandgap emission among many others. In heterogeneous materials electronic-vibrational coupling gives rise to spatial correlations between the electronic relaxation properties and vibrational dynamics. Visualizing and mapping these correlations may lead to important physical insights for applications that include electronics, optoelectronics, and energy technologies. However, due to the vastly different energy scales involved, measuring and correlating electronic and vibrational properties is challenging. While in principle, ultrafast pulses with sufficient bandwidth generate excited-state population and vibrational coherence signatures, the need to measure the signal point-by-point across the sample results in relatively slow acquisition, leading to an increased risk of sample photodamage and rendering the measurements highly susceptible to noise. Here, we introduce Parallel Rapid Imaging with Spectroscopic Mapping (PRISM), an ultrafast, wide-field, and coherent imaging technique, that allowed for the simultaneous acquisition of electronic state decay in the 0–10 ps range and vibrational spectra in the structurally sensitive low-frequency 5–600 cm–1 range. The exceptionally high speed of PRISM, exceeding 1.6 million time-resolved traces per second, enabled the mapping of electronic and vibrational properties across 80,000 pixels simultaneously in few-layer tungsten diselenide and perovskite materials. Correlations between the population and coherence maps reveal spatial heterogeneity not observed by either measurement alone. The ability to map electronic-vibrational coupling makes PRISM particularly well-suited for fundamental studies of complex solids and a wide range of materials applications.","PeriodicalId":21,"journal":{"name":"ACS Nano","volume":"162 1","pages":""},"PeriodicalIF":17.1,"publicationDate":"2025-02-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143375774","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Nanovesicles for Lipid Metabolism Reprogram-Enhanced Ferroptosis and Magnetotherapy of Refractory Tumors and Inhibiting Metastasis with Activated Innate Immunity

IF 17.1 1区材料科学

ACS Nano Pub Date : 2025-02-10 DOI: 10.1021/acsnano.4c16981

Xueqing Cheng, Jinshun Xu, Yongsheng Cui, Jing Liu, Yuntian Chen, Chuanshi He, Lele Cui, Yiyao Liu, Bin Song, Changyang Gong, Peng Mi

{"title":"Nanovesicles for Lipid Metabolism Reprogram-Enhanced Ferroptosis and Magnetotherapy of Refractory Tumors and Inhibiting Metastasis with Activated Innate Immunity","authors":"Xueqing Cheng, Jinshun Xu, Yongsheng Cui, Jing Liu, Yuntian Chen, Chuanshi He, Lele Cui, Yiyao Liu, Bin Song, Changyang Gong, Peng Mi","doi":"10.1021/acsnano.4c16981","DOIUrl":"https://doi.org/10.1021/acsnano.4c16981","url":null,"abstract":"Castration-resistant prostate cancer (CRPC) is an intractable disease, but approaches for eradicating primary tumors and inhibiting metastasis are limited. Considering that lipid metabolism plays key roles in ferroptosis and tumor progression and treatment resistance, here we developed a biomimetic nanovesicle (FiFe@RBM) encapsulating fatty acid synthetase inhibitors and iron oxide nanoparticles for synergistic therapy of CRPC and inhibiting the metastasis. FiFe@RBM with superior magnetic properties efficiently delivered drugs into the CRPC cancer cells, where it can release Fe ions to efficiently induce reactive oxygen species and mitochondrial dysfunction and inhibit the AKT-mTOR pathway, which synergistically causes apoptosis and enhances ferroptosis by rewired lipid metabolism through increasing polyunsaturated fatty acids (PUFAs), PUFA-enriched phosphatidylcholine (PUFA-PC), PUFA-enriched phosphatidylethanolamine (PUFA-PE), etc. By intravenous injection, the high accumulation of FiFe@RBM in PC-3 tumors enabled precision T1/T2-weighted magnetic resonance imaging-guided effective eradication of human CRPC PC-3 tumors by synergistic magnetic hyperthermia therapy (MHT) and ferroptosis, which further inhibited liver metastasis by the activated and recruited high rates of natural killer cells in the nude mice model. This work presents an effective nanovesicle strategy for reprogramming lipid metabolism to enhance ferroptosis in synergy with MHT for effectively treating refractory cancers.","PeriodicalId":21,"journal":{"name":"ACS Nano","volume":"16 1","pages":""},"PeriodicalIF":17.1,"publicationDate":"2025-02-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143385761","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

High-Performance Piezotronic Devices

IF 17.1 1区材料科学

ACS Nano Pub Date : 2025-02-10 DOI: 10.1021/acsnano.4c16455

Yongkang Zhang, Jinwan Chen, Runze Yu, Shuhai Liu, Yong Qin

{"title":"High-Performance Piezotronic Devices","authors":"Yongkang Zhang, Jinwan Chen, Runze Yu, Shuhai Liu, Yong Qin","doi":"10.1021/acsnano.4c16455","DOIUrl":"https://doi.org/10.1021/acsnano.4c16455","url":null,"abstract":"The interface phenomena and regulation mechanisms of semiconductor devices are crucial for their applications in the fields of electronics and optoelectronics. The piezotronic effect utilizes the strain-induced piezoelectric polarization at interfaces to regulate the interface energy band and carrier transport, so that the response current of the piezotronic device can change exponentially with small changes of stress/strain, showing high sensitivity. In recent years, in-depth studies of piezotronic effect regarding material, structure, and interface have largely enhanced the piezotronic device’s performance; these investigations can also provide guidance for emerging interface engineering by polarizations like the flexotronic effect. This paper reviews the establishment and development of piezotronics and focuses on the latest research achievements in the field regarding material modification, structural design, and interface engineering, so as to provide guidance for the investigation and development of high-performance piezotronic devices. In the end, the paper points out the current challenges of piezotronic devices in practical applications and gives some outlooks for future development in this field.","PeriodicalId":21,"journal":{"name":"ACS Nano","volume":"9 1","pages":""},"PeriodicalIF":17.1,"publicationDate":"2025-02-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143385763","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Wireless Thermochromic Platform Based on Au/SiO2 Photonic Crystals for Operando Monitoring of Catalyst Sintering with Machine Learning

IF 17.1 1区材料科学

ACS Nano Pub Date : 2025-02-10 DOI: 10.1021/acsnano.4c18155

Mingyu Tang, Bingbing Song, Yajie Kong, Rui Wang, Shujing Li, Wanlin Fu, Wu Yang, Weibing Lu, Yueming Sun, Yunqian Dai

{"title":"Wireless Thermochromic Platform Based on Au/SiO2 Photonic Crystals for Operando Monitoring of Catalyst Sintering with Machine Learning","authors":"Mingyu Tang, Bingbing Song, Yajie Kong, Rui Wang, Shujing Li, Wanlin Fu, Wu Yang, Weibing Lu, Yueming Sun, Yunqian Dai","doi":"10.1021/acsnano.4c18155","DOIUrl":"https://doi.org/10.1021/acsnano.4c18155","url":null,"abstract":"Operando monitoring of the catalyst sinter-degree during reactions is essential for achieving a stable, safe, and efficient chemical engineering process. This work introduces a wireless thermochromic platform that utilizes machine learning to correlate color changes with the sinter-degree of catalysts and to identify hot spots during chemical reactions. After being decorated with sub-2 nm Au clusters, SiO2 photonic crystals were endowed with a distinct color change from the inherent blue hue of SiO2 photonic crystals to the distinctive red shade associated with Au clusters, due to the gradual growth of Au clusters over a wide temperature range from 25 to 900 °C. With the assistance of an artificial neural network, a robust correlation was established between the observed color change and the sinter-degree of Au species. After training, the smart Au/SiO2 catalyst achieved self-visualization for the sinter-degree of Au species within 12.4 μm × 12.4 μm, during CO oxidation. Moreover, an intelligent noninvasive platform can be constructed by patterning Au/SiO2 photonic crystals into quick response codes, for real-time monitoring of temperature distribution at a micro-region scale (208 μm × 208 μm) within 5 ms during chemical reactions. The Au/SiO2 thermochromic platform enables wireless data transmission and facilitates the programmable warning of abnormal hot spots in reactors. This work serves as a technical reserve for future research on the development of advanced catalysts and offers further insight into the chemical engineering process.","PeriodicalId":21,"journal":{"name":"ACS Nano","volume":"9 1","pages":""},"PeriodicalIF":17.1,"publicationDate":"2025-02-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143385767","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Adhesion and Reconstruction of Graphene/Hexagonal Boron Nitride Heterostructures: A Quantum Monte Carlo Study

IF 17.1 1区材料科学

ACS Nano Pub Date : 2025-02-09 DOI: 10.1021/acsnano.4c10909

Marcin Szyniszewski, Elaheh Mostaani, Angelika Knothe, Vladimir Enaldiev, Andrea C. Ferrari, Vladimir I. Fal’ko, Neil D. Drummond

{"title":"Adhesion and Reconstruction of Graphene/Hexagonal Boron Nitride Heterostructures: A Quantum Monte Carlo Study","authors":"Marcin Szyniszewski, Elaheh Mostaani, Angelika Knothe, Vladimir Enaldiev, Andrea C. Ferrari, Vladimir I. Fal’ko, Neil D. Drummond","doi":"10.1021/acsnano.4c10909","DOIUrl":"https://doi.org/10.1021/acsnano.4c10909","url":null,"abstract":"We investigate interlayer adhesion and relaxation at interfaces between graphene and hexagonal boron nitride (hBN) monolayers in van der Waals heterostructures. The adhesion potential between graphene and hBN is calculated as a function of local lattice offset using diffusion quantum Monte Carlo methods, which provide an accurate treatment of van der Waals interactions. Combining the adhesion potential with elasticity theory, we determined the relaxed structures of graphene and hBN layers at interfaces, finding no metastable structures. The adhesion potential is well described by simple Lennard–Jones pair potentials that we parametrize using our quantum Monte Carlo data. Encapsulation of graphene between near-aligned crystals of hBN gives rise to a moiré pattern whose period is determined by the misalignment angle between the hBN crystals superimposed over the moiré superlattice previously studied in graphene on an hBN substrate. We model minibands in such supermoiré superlattices and find them to be sensitive to the 180° rotation of one of the encapsulating hBN crystals. We find that monolayer and bilayer graphene placed on a bulk hBN substrate and bulk hBN/graphene/bulk hBN systems do not relax to adopt a common lattice constant. The energetic balance is much closer for free-standing monolayer graphene/hBN bilayers and hBN/graphene/hBN trilayers. The layers in an alternating stack of graphene and hBN are predicted to strain to adopt a common lattice constant, and hence, we obtain a stable three-dimensional crystal with a distinct electronic structure.","PeriodicalId":21,"journal":{"name":"ACS Nano","volume":"26 1","pages":""},"PeriodicalIF":17.1,"publicationDate":"2025-02-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143375638","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Near-Field Thermal Radiation as a Probe of Nanoscale Hot Electron and Phonon Transport

IF 17.1 1区材料科学

ACS Nano Pub Date : 2025-02-09 DOI: 10.1021/acsnano.4c11893

Mohammad Habibi, Albert Beardo, Longji Cui

{"title":"Near-Field Thermal Radiation as a Probe of Nanoscale Hot Electron and Phonon Transport","authors":"Mohammad Habibi, Albert Beardo, Longji Cui","doi":"10.1021/acsnano.4c11893","DOIUrl":"https://doi.org/10.1021/acsnano.4c11893","url":null,"abstract":"Understanding the energy transport properties of hot energy carriers is of great importance for a diverse range of topics from nanoelectronics and photochemistry to the discovery of quantum materials. While much progress has been made in the study of hot carrier dynamics using ultrafast far-field time-resolved spectroscopies, it remains a great challenge to understand hot carrier transport and interaction dynamics at the nanoscale. Existing theoretical models yield only qualitative predictions that are difficult to validate against experiments. Here we present a theoretical framework that extends the study of near-field thermal radiation into the ultrafast time domain, enabling sensitive local probing and quantitative study of nanoscale hot electron and phonon transport effects that have been challenging to quantify. The proposed technique of near-field hot carrier nanoscopy directly links the features of different nonequilibrium effects to near-field thermal absorption and scattering by a scanning nanotip. Our model predicts ultrafast thermal radiation in response to photoexcitation, as well as elucidates the nanoscopic radiation properties of a number of hot carrier dissipation pathways, including nonlinear electron supercollision, second sound, and nonlocal phonon transport. This work is expected to guide experiments to identify the fundamental constraints unlocking thermal wave (second sound) propagation and address the roles of competing hydrodynamic and ballistic phonon effects at the nanoscale.","PeriodicalId":21,"journal":{"name":"ACS Nano","volume":"9 1","pages":""},"PeriodicalIF":17.1,"publicationDate":"2025-02-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143375639","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Emerging Potential of Conjugated Polyelectrolytes beyond Boundaries

IF 17.1 1区材料科学

ACS Nano Pub Date : 2025-02-09 DOI: 10.1021/acsnano.4c17565

Wonho Lee, Jinesh Lalitkumar Chouhan, Amit Kumar Harit, Chaeyeon Park, Daam Kim, Samantha R. McCuskey, Guillermo C. Bazan, Han Young Woo

{"title":"Emerging Potential of Conjugated Polyelectrolytes beyond Boundaries","authors":"Wonho Lee, Jinesh Lalitkumar Chouhan, Amit Kumar Harit, Chaeyeon Park, Daam Kim, Samantha R. McCuskey, Guillermo C. Bazan, Han Young Woo","doi":"10.1021/acsnano.4c17565","DOIUrl":"https://doi.org/10.1021/acsnano.4c17565","url":null,"abstract":"Conjugated polyelectrolytes (CPEs) constitute a distinct class of materials defined by a π-conjugated backbone and ionic side chains. The delocalized π electrons offer distinct electronic and optical properties, while the presence of ionic moieties enables precise adjustments of hydrophilicity, pH neutrality, self-doping, and ionic conductivity. A recent proliferation of applications for CPEs underscores their dual nature, marking a notable expansion in their potential in technological innovation. The ability to fine-tune both electronic and ionic traits broadens horizons for their utility, spanning organic/inorganic optoelectronics, electrochemical transistors, photocatalytic water splitting, thermoelectric devices, and energy storage systems. This review highlights recent advancements in CPE research, emphasizing synthetic strategies for integrating a wide range of structural units that can tailor optoelectronic and ion transport functions. It also explores innovative applications across diverse domains and discusses a range of operational mechanisms. Additionally, the review addresses persistent challenges and prospects in the field, contributing to ongoing progress toward the implementation of CPEs in emerging technological opportunities.","PeriodicalId":21,"journal":{"name":"ACS Nano","volume":"79 1","pages":""},"PeriodicalIF":17.1,"publicationDate":"2025-02-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143375641","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Responsive Photonic Filaments from Confined Self-Assembly of Cellulose Nanocrystals

IF 17.1 1区材料科学

ACS Nano Pub Date : 2025-02-09 DOI: 10.1021/acsnano.4c15863

Fusheng Zhang, Jiaqi Yu, Wei Zhong, Zhixiang Wang, Qiongya Li, Guangyan Qing

{"title":"Responsive Photonic Filaments from Confined Self-Assembly of Cellulose Nanocrystals","authors":"Fusheng Zhang, Jiaqi Yu, Wei Zhong, Zhixiang Wang, Qiongya Li, Guangyan Qing","doi":"10.1021/acsnano.4c15863","DOIUrl":"https://doi.org/10.1021/acsnano.4c15863","url":null,"abstract":"Cellulose nanocrystals (CNCs) hold transformative potential for sustainable photonics, particularly in applications such as polarization-selective devices and chiroptical sensors. However, conventional CNC derivatives are primarily limited to dense flat films, restricting their functionalization in soft fibers and wearable textiles. Advancing CNCs into infinitely extending cylindrical filaments presents an opportunity to unlock fascinating applications, yet this transformation is often hindered by the Plateau–Rayleigh instability, leading to the breakup of CNC suspensions into droplets. Here, we propose an innovation strategy for the continuous and scalable production of chiral photonic filaments by confining the photo-cross-linking of CNC/poly(ethylene glycol) diacrylate precursors within cylindrical microtubules. The resulting filaments, driven by both shear flow and chiral self-assembly, exhibit a high degree of orientation along their central axis while preserving the nanohierarchical structure of the uniaxial nematic phase. Notably, these filaments achieve an orientation order parameter of 0.91, coupled with exceptional mechanical performances (14 MJ·m–3), as well as dynamic interference color-change capabilities in response to variations in hygroscopicity or applied mechanical strain. We present a proof-of-concept for optical fabrics using these photonic filaments, which supports the development of smart textiles and fashionable clothing, thereby significantly enriching the diversity and design possibilities of CNC-based materials.","PeriodicalId":21,"journal":{"name":"ACS Nano","volume":"62 1","pages":""},"PeriodicalIF":17.1,"publicationDate":"2025-02-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143375640","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Wafer-Scale Transfer and Integration of Tungsten-Doped Vanadium Dioxide Films 掺钨二氧化钒薄膜的晶圆级转移和集成

IF 17.1 1区材料科学

ACS Nano Pub Date : 2025-02-08 DOI: 10.1021/acsnano.4c15059

Yuan Li, He Ma, Run Shi, Yonghuang Wu, Shifeng Feng, Yulan Fu, Yuanqi Wei, Xuzhe Zhao, Kaichen Dong, Kaili Jiang, Kai Liu, Xinping Zhang

{"title":"Wafer-Scale Transfer and Integration of Tungsten-Doped Vanadium Dioxide Films","authors":"Yuan Li, He Ma, Run Shi, Yonghuang Wu, Shifeng Feng, Yulan Fu, Yuanqi Wei, Xuzhe Zhao, Kaichen Dong, Kaili Jiang, Kai Liu, Xinping Zhang","doi":"10.1021/acsnano.4c15059","DOIUrl":"https://doi.org/10.1021/acsnano.4c15059","url":null,"abstract":"Modern optoelectronic devices trend toward greater flexibility, wearability, and multifunctionality, demanding higher standards for fabrication and operation temperatures. Vanadium dioxide (VO2), with its metal–insulator transition (MIT) at 68 °C, serves as a crucial functional layer in many optoelectronic devices. However, VO2 usually needs to grow at >450 °C in an oxygen-containing atmosphere and to function across its MIT temperature, leading to low compatibility with most optoelectronic devices, especially on flexible substrates. In this work, we report a layer-by-layer transfer method of wafer-scale tungsten-doped VO2 films, which enables sequential integration of the VO2 films with low MIT temperatures (down to 40 °C) onto arbitrary substrates. Notably, by stacking multiple VO2 films with different doped levels, a quasi-gradient-doped VO2 architecture can be achieved, effectively broadening the MIT temperature window and reducing the hysteresis of VO2. These integrated VO2 films find a wide scope of applications in flexible temperature indicator strips, infrared camouflage devices, nonreciprocal ultrafast light modulators, and smart photoactuators. Our work promotes the development of more flexible and tunable optoelectronic devices integrated with VO2.","PeriodicalId":21,"journal":{"name":"ACS Nano","volume":"12 1","pages":""},"PeriodicalIF":17.1,"publicationDate":"2025-02-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143367578","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Revealing Light-Magnetism Coupling via Anomalous Hall Effect and Magneto-Photoresponse in Proximity-Coupled CrSBr/Graphene Heterostructures

IF 17.1 1区材料科学

ACS Nano Pub Date : 2025-02-08 DOI: 10.1021/acsnano.4c15773

Xiaokeng Wu, Wei Tang, Duo Zhao, Sichao Dai, Lu Qi, Zelong Li, Xiaoliang Weng, Chenxu Kang, Shuangchen Ruan, Aymeric Ramiere, Yu-Jia Zeng

{"title":"Revealing Light-Magnetism Coupling via Anomalous Hall Effect and Magneto-Photoresponse in Proximity-Coupled CrSBr/Graphene Heterostructures","authors":"Xiaokeng Wu, Wei Tang, Duo Zhao, Sichao Dai, Lu Qi, Zelong Li, Xiaoliang Weng, Chenxu Kang, Shuangchen Ruan, Aymeric Ramiere, Yu-Jia Zeng","doi":"10.1021/acsnano.4c15773","DOIUrl":"https://doi.org/10.1021/acsnano.4c15773","url":null,"abstract":"The interplay between light and magnetism sparks groundbreaking concepts for the next-generation versatile spintronic and nanoelectronic devices. However, direct measurements of light-magnetism coupling remain challenging due to the intrinsic difficulties in characterizing these properties simultaneously. Herein, via harnessing magnetic proximity and anomalous Hall effect (AHE), we report the effective modification of magnetism in the graphene/CrSBr heterostructure by an unpolarized 405 nm light. The emergence of magnetism in graphene is ascribed to the proximity effect, which arises from its coupling with the neighboring CrSBr. The photoinduced charge transfer doping into graphene exerts a precise tune over the Fermi level (EF), facilitating the optical control of carrier density and mobility. This operation engenders an adjustable anomalous Hall resistance and magnetoresistance congruent with the Fermi level tuning, further verified by surface potential measurements. In parallel, high-performance magneto-photoresponse has been realized, which is believed to result from spin polarization-enhanced photoinduced charge separation. Our study offers insights into the interplay between light and magnetism, showcasing the potential of 2D proximity-coupled heterostructures in opto-spintronics.","PeriodicalId":21,"journal":{"name":"ACS Nano","volume":"26 1","pages":""},"PeriodicalIF":17.1,"publicationDate":"2025-02-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143367579","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0