Journal of Materiomics最新文献

{"title":"HfO2-Based Ferroelectrics for Next-Generation Multi-Level Non-volatile Memory: From Fundamentals to Prospects","authors":"Binjian Zeng, Yahao Xue, Kejun Tan, Ji Zou, Shuaizhi Zheng, Yichun Zhou, Min Liao","doi":"10.1016/j.jmat.2026.101233","DOIUrl":"https://doi.org/10.1016/j.jmat.2026.101233","url":null,"abstract":"Ferroelectric memory has emerged as a highly promising candidate for next-generation non-volatile memory, offering ultra-low power consumption, ultrafast read/write speeds, high reliability, and significant potential for high-density integration. Over the past fifteen years in particular, the discovery of ferroelectricity in HfO<ce:inf loc=\"post\">2</ce:inf>-based thin films has attracted widespread attention and stimulated substantial progress in this field. Previous review articles have provided comprehensive summaries of representative advances in the field, covering topics including the origin of ferroelectricity in HfO<ce:inf loc=\"post\">2</ce:inf>, deposition methods, the performances of HfO<ce:inf loc=\"post\">2</ce:inf>-based ferroelectric thin films and memory devices, as well as progress in device physics, integration strategies, and emerging applications. However, more recent breakthroughs in the multi-level devices have not yet been systematically reviewed. These developments are becoming increasingly critical for mass data storage and emerging paradigms such as in-memory computing. In this review, we summarize recent progress in HfO<ce:inf loc=\"post\">2</ce:inf>-based ferroelectric multi-level memories, with a focus on material studies, device designs, and emerging applications. By highlighting these advances, we aim to delineate both the persistent challenges and opportunities associated with this technology, with the goal of inspiring further innovation in the field.","PeriodicalId":16173,"journal":{"name":"Journal of Materiomics","volume":"20 1","pages":""},"PeriodicalIF":9.4,"publicationDate":"2026-04-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147735780","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}

{"title":"Tetragonal-pseudocubic boundary engineering unlocks high electromechanical activity in PNN-PZT ceramics","authors":"Zhuo Xing, Xin Wang, Jia Liu, Yunyao Huang, Zhengjie Zhao, Feng Luo, Zhenhua Wang, Leiyang Zhang, Ruiyi Jing, Li Jin","doi":"10.1016/j.jmat.2026.101234","DOIUrl":"https://doi.org/10.1016/j.jmat.2026.101234","url":null,"abstract":"High-performance piezoelectric ceramics are essential for actuators functioning under extreme conditions, ranging from specific electronic components in the aerospace sector to those in the energy exploration industry that operate under moderate thermal conditions. We synthesize a series of 0.5Pb(Ni_1/3Nb_2/3)O₃-0.5Pb(Zr_<em>x</em>Ti_{1−<em>x</em>})O₃ (PNN-PZT<em>x</em>) compositions (<em>x</em> = 0.29, 0.31, 0.33, 0.35) and tune their electromechanical behavior by adjusting the Zr-to-Ti ratio. X-ray diffraction shows a progressive reduction in the splitting of tetragonal reflections with increasing Zr content, placing the <em>x</em> = 0.33 composition near a tetragonal–pseudocubic phase transition rather than a conventional morphotropic phase boundary. This composition exhibits a strongly enhanced electromechanical response, with a quasi-static piezoelectric coefficient <em>d</em>₃₃ of 1054 pC/N, an electromechanical coupling factor of 55%, and a converse piezoelectric coefficient <span><span style=\"\"></span><span data-mathml='&lt;math xmlns=\"http://www.w3.org/1998/Math/MathML\" /&gt;' role=\"presentation\" style=\"font-size: 90%; display: inline-block; position: relative;\" tabindex=\"0\"><svg aria-hidden=\"true\" focusable=\"false\" height=\"0.24ex\" role=\"img\" style=\"vertical-align: -0.12ex;\" viewbox=\"0 -51.7 0 103.4\" width=\"0\" xmlns:xlink=\"http://www.w3.org/1999/xlink\"><g fill=\"currentColor\" stroke=\"currentColor\" stroke-width=\"0\" transform=\"matrix(1 0 0 -1 0 0)\"></g></svg><span role=\"presentation\"><math xmlns=\"http://www.w3.org/1998/Math/MathML\"></math></span></span><script type=\"math/mml\"><math></math></script></span> of 1138 pm/V. An electrostrain of 0.111% is generated at 10 kV/cm, demonstrating efficient actuation at modest fields. Temperature-dependent measurements show that <em>d</em>₃₃ remains within ±20% between 30 and 90 °C, indicating the coexistence of high activity and thermal robustness. These results demonstrate that precise regulation of the Zr-to-Ti ratio enables access to tetragonal-pseudocubic phase boundaries and provides a simple route to high electromechanical performance in lead-based piezoelectrics for demanding applications.","PeriodicalId":16173,"journal":{"name":"Journal of Materiomics","volume":"23 1","pages":""},"PeriodicalIF":9.4,"publicationDate":"2026-04-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147695610","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}

{"title":"Dislocation-point defect interaction on plasticity across the length scale in SrTiO3","authors":"Chukwudalu Okafor, Kohei Takahara, Svetlana Korneychuk, Isabel Huck, Sebastian Bruns, Ruoqi Li, Yan Li, Karsten Durst, Atsutomo Nakamura, Xufei Fang","doi":"10.1016/j.jmat.2026.101232","DOIUrl":"https://doi.org/10.1016/j.jmat.2026.101232","url":null,"abstract":"Point defect engineering is widely used to tailor the electronic and transport properties of complex oxides, yet its influence on dislocation plasticity remains poorly understood. Here, we establish how donor (Nb) doping modifies dislocation nucleation, multiplication, and mobility in single-crystal SrTiO₃ by bridging nano-, meso-, and macroscale deformation. Using a combinatorial approach involving nanoindentation, cyclic Brinell indentation, and bulk uniaxial compression, we show that 0.5 wt% Nb doping consistently suppresses room-temperature plasticity. Nanoindentation reveals increased pop-in stresses, increased lattice friction stress, and reduced creep rates, indicating inhibited dislocation nucleation and motion with Nb doping. Mesoscale Brinell indentation exhibits discrete, widely spaced slip traces reflecting more difficult dislocation multiplication. Bulk uniaxial compression confirms ∼50% higher yield stress in Nb-doped (0.5 wt%) SrTiO₃ samples, which underscores the strength-plasticity tradeoff. Comparison with Fe-doped SrTiO₃ (equivalent doping concentration) isolates the role of defect chemistry: oxygen vacancies promote incipient plasticity, whereas Sr vacancies dominate in Nb-doped SrTiO₃, strongly hindering dislocation motion. This length-scale bridging approach consistently reveals suppressed dislocation nucleation, multiplication, and motion in the 0.5 wt% Nb-doped samples. These insights underline the importance of dislocation-defect chemistry on the mechanical behavior of functional oxides.","PeriodicalId":16173,"journal":{"name":"Journal of Materiomics","volume":"15 1","pages":""},"PeriodicalIF":9.4,"publicationDate":"2026-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147708810","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}

{"title":"A perspective on CO2 gas sensing — from environments to the skin interface","authors":"Md Abu Sayeed Biswas, Andrew Geronimo, Huanyu Cheng","doi":"10.1016/j.jmat.2026.101228","DOIUrl":"https://doi.org/10.1016/j.jmat.2026.101228","url":null,"abstract":"Carbon dioxide (CO<ce:inf loc=\"post\">2</ce:inf>) is a universal indicator of biological, chemical, and physiological processes, yet it plays a multifaceted role, from regulating global climate to reflecting human cellular activities. The accurate and continuous measurement technologies of CO<ce:inf loc=\"post\">2</ce:inf> have evolved along separate paths: environmental CO<ce:inf loc=\"post\">2</ce:inf> monitors to biomedical sensors for respiratory or blood gas assessment. While environmental monitoring and clinical capnography are well established, translating these technologies to continuous, non-invasive transcutaneous CO<ce:inf loc=\"post\">2</ce:inf> (tcCO<ce:inf loc=\"post\">2</ce:inf>) sensing remains challenging due to skin-interface instability, humidity interference, and diffusion-limited transport. This perspective will discuss design principles from ambient CO<ce:inf loc=\"post\">2</ce:inf> sensors with emerging materials and architectures for wearable tcCO<ce:inf loc=\"post\">2</ce:inf> platforms. This perspective also discusses sensor technologies and methods, their integration into systems, the physiological and skin-interface challenges, and the engineering trade-offs for wearables. We also outline recent advances, identify key gaps, and propose a roadmap for future wearable CO<ce:inf loc=\"post\">2</ce:inf> sensors for transcutaneous monitoring.","PeriodicalId":16173,"journal":{"name":"Journal of Materiomics","volume":"17 1","pages":""},"PeriodicalIF":9.4,"publicationDate":"2026-04-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147726865","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}

{"title":"Self-generated reactor strategy enabling combustion synthesis of ultra-long AlN whiskers for superior thermal management","authors":"Lei Zhao, Yinuo Ma, Zhilei Wei, Luyun Tan, Zhitong Li, Zhenxia Yuan, Zhongqi Shi","doi":"10.1016/j.jmat.2026.101227","DOIUrl":"https://doi.org/10.1016/j.jmat.2026.101227","url":null,"abstract":"Conventional aluminum nitride (AlN) whisker synthesis faces inherent limitations, including high reaction temperature, prolonged processing time, high cost and restricted whisker length. Herein, we proposed a novel self-generated reactor strategy that enables the efficient combustion synthesis of ultra-long AlN whiskers. This strategy was realized in the Al/NH₄Cl/PTFE system, where an eggshell-like reactor formed in situ, establishing a thermodynamically stable and confined environment. This unique architecture was crucial for the controlled growth of uniform and high-aspect-ratio whiskers. Under optimized conditions (7% (in mass) NH₄Cl and PTFE/Al molar ratio of 0.015), AlN whiskers with an average diameter of 0.52 μm and a length exceeding 1 mm (aspect ratio &gt;1900) were successfully obtained. Based on thermal reactivity and thermo-kinetic analyses, a possible mechanism for the formation of the self-generated reactor and the subsequent growth of ultra-long AlN whiskers within it was proposed. Furthermore, the synthesized whiskers were incorporated into nanofibrillated cellulose to fabricate composite films, which demonstrated a high in-plane thermal conductivity of 13.16 W·m^–1·K^–1. This work not only provides a novel and efficient pathway for AlN whiskers synthesis but also highlights their potential for practical thermal management applications.","PeriodicalId":16173,"journal":{"name":"Journal of Materiomics","volume":"22 1","pages":""},"PeriodicalIF":9.4,"publicationDate":"2026-04-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147695612","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}

{"title":"Rapid densification mechanism of SrZn0.8Mg0.2Si3O8 microwave dielectric ceramics","authors":"Yiyang Cai, Xiaoqiang Song, Mingfei Cheng, Congao Jin, Jiaqing Yang, Changzhi Yin, Weicheng Lei, Yaodong Liu, Zihang Chen, Wenzhong Lu, Wen Lei","doi":"10.1016/j.jmat.2026.101223","DOIUrl":"https://doi.org/10.1016/j.jmat.2026.101223","url":null,"abstract":"SrZn_0.8Mg_0.2Si₃O₈ ceramics capable of rapid densification under atmospheric pressure, while maintaining excellent microwave dielectric properties were investigated. <em>In-situ</em> scanning electron microscopy and high-resolution transmission electron microscopy confirm the formation of a liquid phase during sintering and clarify its chemical composition. Rapid densification originates from intrinsic generation of this liquid phase in SrZn_0.8Mg_0.2Si₃O₈ during the sintering process. Because the liquid phase is produced internally, most of it spontaneously crystallizes into the parent phase during cooling. Therefore, the final microstructure consists predominantly of the SrZn_0.8Mg_0.2Si₃O₈ phase with only a small residual amorphous phase. SrZn_0.8Mg_0.2Si₃O₈ ceramics thus exhibit excellent microwave dielectric properties (<em>ε</em>_r = 6.07 ± 0.02, <em>Q×f =</em> 69,350 ± 650 GHz (<em>f</em> = 16.37 GHz), <em>τ</em>_f = −27.6 ± 1.4×10^–6 °C^–1, holding time(<em>H.T.</em>) = 1 min), which are superior to those of conventional composite ceramics that rely on added low-melting-point oxides to induce liquid-phase sintering. In addition, rapid densification enables grain refinement while maintaining high relative density. This microstructural feature improves mechanical strength and electrical breakdown strength and suppresses long range ionic diffusion during heterogeneous cofiring integration.","PeriodicalId":16173,"journal":{"name":"Journal of Materiomics","volume":"21 1","pages":""},"PeriodicalIF":9.4,"publicationDate":"2026-04-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147649253","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}

{"title":"Remarkable long-term oxidation resistance of high-entropy alumino-silicides up to 2100 °C","authors":"Yuhui Chen, Zihao Wen, Yiwen Liu, Lei Zhuang, Hulei Yu, Yanhui Chu","doi":"10.1016/j.jmat.2026.101226","DOIUrl":"https://doi.org/10.1016/j.jmat.2026.101226","url":null,"abstract":"Thermal protection systems of hypersonic vehicles typically require advanced high-temperature materials capable of withstanding long-term exposure to oxidizing environments at 1800–2500 °C. However, related studies are scarce. Here, by employing a laser-assisted compositional engineering strategy, we successfully explore innovative high-entropy alumino-silicides (HEASs) that show superior long-term oxidation resistance across 1700–2100 °C for 80 min in air, surpassing the performance of previously reported ultrahigh-temperature materials. The oxidation resistance of HEASs is further validated by plasma ablation testing in air, exhibiting a linear ablation rate of as low as 0.035 μm·s<ce:sup loc=\"post\">–1</ce:sup> at 2100 °C. Such remarkable oxidation resistance is attributed to the formation of a unique alumino-silicate glassy phase. Further first-principles calculations coupled with experimental observations indicate an ultralow oxygen diffusion rate (4.26 × 10<ce:sup loc=\"post\">–5</ce:sup> cm<ce:sup loc=\"post\">2</ce:sup>·s<ce:sup loc=\"post\">–1</ce:sup>) and exceptional thermal stability (binding energy of –0.004 eV·A<ce:sup loc=\"post\">–2</ce:sup>) in the alumino-silicate glassy phase due to multi-component synergistic effects. This work highlights the potential of HEASs for long-term ultrahigh-temperature applications.","PeriodicalId":16173,"journal":{"name":"Journal of Materiomics","volume":"62 1","pages":""},"PeriodicalIF":9.4,"publicationDate":"2026-04-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147642193","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}

{"title":"Theoretical calculation of GaGeTe and its application for ultrafast photonics","authors":"Lihui Pang, Meng Zhao, Le Jiang, Qiyi Zhao, Lu Li, Rongqian Wu, Yi Lv, Wenjun Liu","doi":"10.1016/j.jmat.2026.101219","DOIUrl":"https://doi.org/10.1016/j.jmat.2026.101219","url":null,"abstract":"GaGeTe represents a characteristic example of topological semimetals, exhibiting exceptional mechanical, physical, and chemical characteristics. The material's reduced structural symmetry renders it highly responsive to external parameters, thereby providing considerable flexibility for property modulation and the development of functional nanodevices. In the present study, first-principles theoretical calculations were conducted to investigate the mechanical, electronic, and optical characteristics of GaGeTe, providing fundamental insights into its intrinsic properties while supporting potential optoelectronic applications. Furthermore, GaGeTe-based saturable absorbers were prepared and incorporated into Er-doped fiber laser cavities, resulting in the achievement of Q-switched and harmonic mode-locked operations. For the Q-switched operation, the minimum pulse duration reached 532.15 ns with signal-to-noise ratio of 80 dB. The GaGeTe-based fundamental mode-locked fiber laser shows decent output performance (pulse width, signal-noise ratio and repetition rate are 463.37 fs, 63.2 dB, and 45.99 MHz). Additionally, it enables stable harmonic mode-locking with maximum repetition rate of 367.99 MHz. The observed performance of GaGeTe-based fiber lasers surpasses that reported in previous studies. These results indicate that GaGeTe materials hold significant promise for nonlinear optical applications and expand the available options for two-dimensional material development.","PeriodicalId":16173,"journal":{"name":"Journal of Materiomics","volume":"90 1","pages":""},"PeriodicalIF":9.4,"publicationDate":"2026-04-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147619862","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}

{"title":"Spectral engineering of Mn4+/Ba2+ Co-doped perovskite phosphors for high-performance plant cultivation LED","authors":"Kaiyuan Deng, Chuanlong Wang, Xiaohui Lin, Wenjin Li, Ruonan Zhang, Chengshuai Chang, Chonghui Li, Shoaib Nazir, Yihua Hu, Guangliang Gary Liu","doi":"10.1016/j.jmat.2026.101222","DOIUrl":"https://doi.org/10.1016/j.jmat.2026.101222","url":null,"abstract":"","PeriodicalId":16173,"journal":{"name":"Journal of Materiomics","volume":"29 1","pages":""},"PeriodicalIF":9.4,"publicationDate":"2026-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147619871","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}

{"title":"Defect-engineered internal bias field enables highly efficient strain enhancement in lead-free BF-BT ferroelectric ceramics","authors":"Zhanpeng Li, Yangda Dong, Qihang Tang, Ting Zheng, Jiagang Wu","doi":"10.1016/j.jmat.2026.101220","DOIUrl":"https://doi.org/10.1016/j.jmat.2026.101220","url":null,"abstract":"","PeriodicalId":16173,"journal":{"name":"Journal of Materiomics","volume":"2018 1","pages":""},"PeriodicalIF":9.4,"publicationDate":"2026-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147598069","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}