Advanced Physics Research最新文献_第9页

Synthesis and Characterization of Fe-Phthalocyanine-Based Metal–Organic Framework fe -酞菁基金属有机骨架的合成与表征

IF 2.8

Advanced Physics Research Pub Date : 2025-01-15 DOI: 10.1002/apxr.202400155

Hiroto Oi, Momoka Isobe, Riko Kishikawa, Fumiya Abe, Norihiro Morishita, Shunsuke Takagi, Shota Nakayama, Kaname Kanai

{"title":"Synthesis and Characterization of Fe-Phthalocyanine-Based Metal–Organic Framework","authors":"Hiroto Oi, Momoka Isobe, Riko Kishikawa, Fumiya Abe, Norihiro Morishita, Shunsuke Takagi, Shota Nakayama, Kaname Kanai","doi":"10.1002/apxr.202400155","DOIUrl":"10.1002/apxr.202400155","url":null,"abstract":"This paper reports the successful synthesis of Fe-phthalocyanine-based metal-organic framework (FePc-MOF) by simple thermal polymerization. FePc-MOF is a promising candidate for Lieb lattice, which is a type of Dirac materials with two independent sites in a square unit cell, and it is theoretically predicted to have a unique electronic structure featuring both a Dirac band and a flat band near the Fermi level. The prepared samples exhibit the structure of FePc-MOF, as confirmed by X-ray diffraction, Fourier transform infrared spectroscopy, and transmission electron microscopy. The FePc-MOF pellet demonstrates electrical conductivity approximately a thousand times higher than that of its precursor, octacyano-Fe-phthalocyanine. This significant increase in electrical conductivity compared to the precursor indicates that FePc-MOF has a 2D π-electron system with a FePc-based framework and is consistent with the prediction that FePc-MOF is a semiconductor with a narrow energy gap due to its Lieb lattice-like structure. The synthesis method developed in this study is expected to advance fundamental research on Lieb lattices as new electronic and magnetic functional materials.","PeriodicalId":100035,"journal":{"name":"Advanced Physics Research","volume":"4 5","pages":""},"PeriodicalIF":2.8,"publicationDate":"2025-01-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/apxr.202400155","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143919614","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Altermagnetism in NiSi and Antiferromagnetic Candidate Materials with Non-Collinear Spins 具有非共线自旋的NiSi和反铁磁候选材料中的电磁学

IF 2.8

Advanced Physics Research Pub Date : 2025-01-14 DOI: 10.1002/apxr.202400170

Deepak K. Singh, Sang-Wook Cheong, Jiasen Guo

{"title":"Altermagnetism in NiSi and Antiferromagnetic Candidate Materials with Non-Collinear Spins","authors":"Deepak K. Singh, Sang-Wook Cheong, Jiasen Guo","doi":"10.1002/apxr.202400170","DOIUrl":"10.1002/apxr.202400170","url":null,"abstract":"Recently, a new class of magnetic phenomenon, called altermagnetism, is proposed where the underlying spin configuration resembles antiferromagnetic structure, but the system violates PT (PT: Parity times Time reversal) symmetry due to the alternation of crystalline symmetry across magnetic ions. Although the original idea is proposed for the collinear spin structure, a recent report by Cheong et al. has suggested that antiferromagnetic materials with non-collinear spin structure and local alternation of crystalline arrangement can also manifest altermagnetism. Besides breaking the PT symmetry, altermagnetic compounds are also expected to exhibit anomalous Hall effects of odd orders. Here, possible candidates are discussed in this regard. One example is nickel monosilicide, which is recently shown to exhibit high temperature antiferromagnetism with non-collinear spin structure. It fulfills both criteria of breaking the PT symmetry and manifesting nonlinear anomalous Hall effect. In addition to NiSi, other potential antiferromagnetic materials are also discussed with non-collinear spin configuration for the exploration of altermagnetic states.","PeriodicalId":100035,"journal":{"name":"Advanced Physics Research","volume":"4 5","pages":""},"PeriodicalIF":2.8,"publicationDate":"2025-01-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/apxr.202400170","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143919765","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Impurity Band Formation as a Route to Thermoelectric Power Factor Enhancement in n-type XNiSn Half-Heuslers 杂质带形成是n型XNiSn半heuslers中热电功率因数增强的途径

IF 2.8

Advanced Physics Research Pub Date : 2025-01-12 DOI: 10.1002/apxr.202400179

Robert J. Quinn, Yuji Go, Aaron B. Naden, Andras Bojtor, Gabor Paráda, Ashiq K. M. A. Shawon, Kamil Domosud, Keith Refson, Alexandra Zevalkink, Neophytos Neophytou, Jan-Willem G. Bos

{"title":"Impurity Band Formation as a Route to Thermoelectric Power Factor Enhancement in n-type XNiSn Half-Heuslers","authors":"Robert J. Quinn, Yuji Go, Aaron B. Naden, Andras Bojtor, Gabor Paráda, Ashiq K. M. A. Shawon, Kamil Domosud, Keith Refson, Alexandra Zevalkink, Neophytos Neophytou, Jan-Willem G. Bos","doi":"10.1002/apxr.202400179","DOIUrl":"10.1002/apxr.202400179","url":null,"abstract":"Bandstructure engineering is a key route for thermoelectric performance enhancement. Here, 20–50% Seebeck (S) enhancement is reported for XNiCuySn half-Heusler samples based on X = Ti. This novel electronic effect is attributed to the emergence of impurity bands of finite extent, due to the Cu dopants. Depending on the dispersion, extent, and offset with respect to the parent material, these bands are shown to enhance S to different degrees. Experimentally, this effect is controllable by the Ti content of the samples, with the addition of Zr/Hf gradually removing the enhancement. At the same time, the mobility remains largely intact, enabling power factors ≥3 mW m−1 K−2 near room temperature, increasing to ≥5 mW m−1 K−2 at high temperature. Combined with reduced thermal conductivity due to the Cu interstitials, this enables high average zT = 0.67–0.72 between 320 and 793 K for XNiCuySn compositions with ≥70% Ti. This work reveals the existence of a new route for electronic performance enhancement in n-type XNiSn materials that are normally limited by their single carrier pocket. In principle, impurity bands can be applied to other materials and provide a new direction for further development.","PeriodicalId":100035,"journal":{"name":"Advanced Physics Research","volume":"4 6","pages":""},"PeriodicalIF":2.8,"publicationDate":"2025-01-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/apxr.202400179","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144273489","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Quantum Mechanics in Plasmonic Nanocavities: from Theory to Applications 等离子体纳米腔中的量子力学：从理论到应用

IF 2.8

Advanced Physics Research Pub Date : 2025-01-12 DOI: 10.1002/apxr.202400144

Tao Ding, Christos Tserkezis, Christos Mystilidis, Guy A. E. Vandenbosch, Xuezhi Zheng

引用次数: 0

Mechanically Strong Active-Site-Enriched Polymer Composite Solid Electrolytes toward Superior Room-Temperature Performance in Lithium Batteries 机械强活性位富集聚合物复合固体电解质在锂电池中具有优异的室温性能

IF 2.8

Advanced Physics Research Pub Date : 2025-01-12 DOI: 10.1002/apxr.202400166

Jiaxiao Qi, Yongjing Wang, Haixiong Tang, Jiayu Zhao, Yu Hong, Qiong Li, Ming Jiang, Lijie Dong

{"title":"Mechanically Strong Active-Site-Enriched Polymer Composite Solid Electrolytes toward Superior Room-Temperature Performance in Lithium Batteries","authors":"Jiaxiao Qi, Yongjing Wang, Haixiong Tang, Jiayu Zhao, Yu Hong, Qiong Li, Ming Jiang, Lijie Dong","doi":"10.1002/apxr.202400166","DOIUrl":"10.1002/apxr.202400166","url":null,"abstract":"Solid-state electrolytes (SSEs) are promising for lithium batteries with higher safety, cycling stability, and energy density. Among the various SSEs, solid polymer electrolytes (SPEs) are a highly preferred choice due to their high thermal stability, thin design, and good formability. However, polymer electrolytes have low ionic conductivity, for example, polyethylene oxide (PEO), one of the most dominant polyelectrolyte materials, has a low ionic conductivity at room temperature due to its high crystallinity. Theoretically, increasing the ionic active sites by decreasing its crystallinity is an effective strategy, but this may lead to its inability to form films or poor mechanical strength. In this work, the crystallinity of PEO is reduced by introducing succinonitrile (SN), and solution blow-spun polyacrylonitrile (PAN) fiber film is employed as the skeleton of the SPE to provide good mechanical strength. PEO-LiTFSI-SN/PAN SPEs have a tensile strength of at least 4.5 MPa. To provide more Li+ active sites, PEO-LiTFSI-SN/MXene@PAN composite SPEs are fabricated by doping the PAN fibers with MXene rich in functional groups. The specific capacity of the LFP|PEO-LiTFSI-SN/MXene@PAN|Li button cell reaches 134.8 mAh g−1 in the first cycle, and the capacity retention rate of 100 cycles is 75.8% at 0.5 C at room temperature.","PeriodicalId":100035,"journal":{"name":"Advanced Physics Research","volume":"4 5","pages":""},"PeriodicalIF":2.8,"publicationDate":"2025-01-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/apxr.202400166","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143919412","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Issue Information (Adv. Phys. Res. 1/2025) 发行信息（物理广告）研究》1/2025)

IF 2.8

Advanced Physics Research Pub Date : 2025-01-10 DOI: 10.1002/apxr.202570002

引用次数: 0

A Near Room Temperature Curie Temperature in a New Type of Diluted Magnetic Semiconductor (Ba,K)(Zn,Mn)2As2 (Adv. Phys. Res. 1/2025) 新型稀释磁性半导体（Ba，K）（Zn,Mn）2As2的近室温居里温度。研究》1/2025)

IF 2.8

Advanced Physics Research Pub Date : 2025-01-10 DOI: 10.1002/apxr.202570001

Yi Peng, Xiang Li, Luchuan Shi, Guoqiang Zhao, Jun Zhang, Jianfa Zhao, Xiancheng Wang, Bo Gu, Zheng Deng, Yasutomo J. Uemura, Changqing Jin

引用次数: 0

Technical Routes to Achieve High Circular Polarized Luminescence in Chiral Perovskites: A Mini-Review 手性钙钛矿实现高圆偏振发光的技术途径综述

IF 2.8

Advanced Physics Research Pub Date : 2025-01-07 DOI: 10.1002/apxr.202400178

Yongge Yang, Zhao Yang, Qing Shen, Joseph J. Berry, Peng Du

引用次数: 0

Modulational Instability and Dynamical Growth Blockade in the Nonlinear Hatano–Nelson Model 非线性Hatano-Nelson模型的调制不稳定性和动态增长阻塞

IF 2.8

Advanced Physics Research Pub Date : 2025-01-01 DOI: 10.1002/apxr.202400154

Stefano Longhi

{"title":"Modulational Instability and Dynamical Growth Blockade in the Nonlinear Hatano–Nelson Model","authors":"Stefano Longhi","doi":"10.1002/apxr.202400154","DOIUrl":"10.1002/apxr.202400154","url":null,"abstract":"The Hatano–Nelson model is a cornerstone of non-Hermitian physics, describing asymmetric hopping dynamics on a 1D lattice, which gives rise to fascinating phenomena such as directional transport, non-Hermitian topology, and the non-Hermitian skin effect. It has been widely studied in both classical and quantum systems, with applications in condensed matter physics, photonics, and cold atomic gases. Recently, nonlinear extensions of the Hatano–Nelson model have opened a new avenue for exploring the interplay between nonlinearity and non-Hermitian effects. Particularly, in lattices with open boundary conditions, nonlinear skin modes and solitons, localized at the edge or within the bulk of the lattice, have been predicted. In this work, the nonlinear extension of the Hatano–Nelson model with periodic boundary conditions is examined and a novel dynamical phenomenon arising from the modulational instability of nonlinear plane waves: growth blockade is revealed. This phenomenon is characterized by the abrupt halt of norm growth, as observed in the linear Hatano–Nelson model, and can be interpreted as a stopping of convective motion arising from self-induced disorder in the lattice.","PeriodicalId":100035,"journal":{"name":"Advanced Physics Research","volume":"4 5","pages":""},"PeriodicalIF":2.8,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/apxr.202400154","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143919686","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

High Conductivity in PEDOT:PSS Thin-Films by Secondary Doping with Superacid Vapor: Mechanisms and Application to Thermoelectrics 超酸蒸汽二次掺杂PEDOT:PSS薄膜的高导电性：机理及其在热电学中的应用

IF 2.8

Advanced Physics Research Pub Date : 2024-12-26 DOI: 10.1002/apxr.202400151

Juhyung Park, Jeong Han Song, Jae Gyu Jang, Jeonghun Kwak

{"title":"High Conductivity in PEDOT:PSS Thin-Films by Secondary Doping with Superacid Vapor: Mechanisms and Application to Thermoelectrics","authors":"Juhyung Park, Jeong Han Song, Jae Gyu Jang, Jeonghun Kwak","doi":"10.1002/apxr.202400151","DOIUrl":"10.1002/apxr.202400151","url":null,"abstract":"Poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS), a conductive polymer, have attracted attention as promising materials for future electronic applications, owing to its tunable doping level for high electrical conductivity (σ) through simple post-treatments. A novel post-treatment method for conventionally doped PEDOT:PSS thin-films (immersed in methanol) is presented to further enhance σ via doping with the superacid, trifluoromethanesulfonic acid (TFSA). The origin of the improved σ in PEDOT:PSS thin-films treated with this dual approach is investigated. The study reveals that the superacid vapor treatment uniquely enhances the lamellar stacking of PEDOT chains and induces vertical phase separation between PEDOT and PSS, leading to improved carrier mobility by a factor of three. This behavior differs from conventional post-treatments, making the combined methanol immersion and TFSA vapor treatment an effective strategy for achieving a high σ of ≈2053 S cm−1, making these films ideal candidates for various polymer-based electronics. Furthermore, the findings demonstrate that the thermoelectric power factor of PEDOT:PSS subjected to secondary doping with superacid vapor exhibits a threefold enhancement (104.2 µW m−1 K−2) compared to samples treated solely with methanol (29.7 µW m−1 K−2). This post-treatment method and the resulting insights will advance the understanding of doping mechanisms and charge transport in conductive polymers.","PeriodicalId":100035,"journal":{"name":"Advanced Physics Research","volume":"4 5","pages":""},"PeriodicalIF":2.8,"publicationDate":"2024-12-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/apxr.202400151","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143920015","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0