Advanced Physics Research最新文献

{"title":"Superconducting Nanowire Detection of Neutral Atoms and Molecules via Their Internal and Kinetic Energy in the eV Range (Adv. Phys. Res. 2/2025)","authors":"M. Strauß,&nbsp;R. Gourgues,&nbsp;M. F. X. Mauser,&nbsp;L. Kulman,&nbsp;M. Castaneda,&nbsp;A. Fognini,&nbsp;A. Shayeghi,&nbsp;P. Geyer,&nbsp;M. Arndt","doi":"10.1002/apxr.202570005","DOIUrl":"https://doi.org/10.1002/apxr.202570005","url":null,"abstract":"<p><b>Superconducting nanowires</b></p><p>In article number 2400133, Markus Arndt and co-workers show superconducting nanowires to be a powerful tool for detecting the impact of neutral metastable atoms and neutral molecules at low energy. They achieve remarkable detection efficiencies, responding sensitively to internal electronic energies as low as 11.6 eV and impact energies as small as 3 eV. Their performance in detecting neutral molecules exceeds that of channel electron multipliers by more than 106, opening new opportunities for measurements in atomic and molecular beam physics. \u0000\u0000 <figure>\u0000 <div><picture>\u0000 <source></source></picture><p></p>\u0000 </div>\u0000 </figure></p>","PeriodicalId":100035,"journal":{"name":"Advanced Physics Research","volume":"4 2","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-02-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/apxr.202570005","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143380245","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}

{"title":"Dynamically Encircling Multiple Exceptional Points in Waveguides System: Asymmetric–symmetric Multimode Switching","authors":"Xiaoxiao Wang,&nbsp;Huixin Qi,&nbsp;Yandong Li,&nbsp;Xiaoyong Hu,&nbsp;Xingyuan Wang,&nbsp;Qihuang Gong","doi":"10.1002/apxr.202400078","DOIUrl":"https://doi.org/10.1002/apxr.202400078","url":null,"abstract":"<p>Dynamically encircling exceptional points in non-Hermitian systems leads to counterintuitive chiral mode conversions, which provides a new platform for implementing information processing. Previous research has shown that the position of the starting point determines whether the dynamics are chiral or non-chiral. Photonic devices that simultaneously realize chiral and non-chiral mode converters are yet to be investigated. In this letter, a four-state non-Hermitian waveguide array with two exceptional points is presented and the dynamical encirclement of each exceptional point and double exceptional points, which possess chiral and non-chiral dynamics is studied. Encircling a single exceptional point and both exceptional points gives the same outcome but a different encircling process. During non-chiral dynamics, the initial states are not on the Riemann sheet that forms the EPs, encircling both exceptional points produces more branch cuts than encircling a single exceptional point. An asymmetric–symmetric multimode switch at telecommunication wavelengths is demonstrated. Chiral mode converter and non-chiral mode converter can be implemented simultaneously on one photonic device. The research enriches the exploration of the physics associated with multiple exceptional points in non-Hermitian multistate systems and inspires wide applications in on-chip optical systems.</p>","PeriodicalId":100035,"journal":{"name":"Advanced Physics Research","volume":"4 4","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-02-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/apxr.202400078","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143818615","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}

{"title":"Topological Physics: From Fundamentals to Applications","authors":"Gang Zhang,&nbsp;Xiaotian Wang,&nbsp;Huan Wang","doi":"10.1002/apxr.202400196","DOIUrl":"https://doi.org/10.1002/apxr.202400196","url":null,"abstract":"&lt;p&gt;With recent breakthroughs from fundamentals to applications in topological physics, it should provide a snapshot of the state-of-the-art, both experimental and theoretical, for both experienced and young researchers interested in this subject area. The Special Issue on “Topological Physics: From Fundamentals to Applications” edited by Xiaotian Wang, and Gang Zhang, provides an overview of progress beyond the state of the art for a diverse range of ongoing scientific and technological efforts toward to the forecasting and engineering of the properties of topological physics, opening up exciting opportunities for the prediction, design, fabrication, functionalization, and integration of new and emerging research on topological materials.&lt;/p&gt;&lt;p&gt;The topological singularity of the scalar field of a microwave supercavity system, excited adjacent to the avoided mode crossing, was observed. Zahra Manzoor et al. [apxr.202200052] experimentally demonstrated that optimizing the high-index dielectric resonator (HIR) dimensions along with a multipolar composition of the strongly coupled excitation source enabled a more compact supercavity system with a higher quality factor.&lt;/p&gt;&lt;p&gt;Topological magnonics has received a great deal of attention in the past decade owing to its fundamental significance and potential applications. This review provided a comprehensive overview of recent research progress on topological phases of magnons, including Chern insulators, high-order topological insulators, Z2 topological insulators, and topological semimetals of magnons. Additionally, candidate materials and artificial structures suitable for hosting topological magnons were summarized by Fengjun Zhuo et al. [apxr.202300054].&lt;/p&gt;&lt;p&gt;In the van der Waals heterostructures Gr/CrI&lt;sub&gt;3&lt;/sub&gt;, the spin-polarized density of graphene exhibited a non-monotonic change with electric field due to the unstable charge distribution. Jun-Tong Ren et al. [apxr.202300026] reported that when the interface distance was compressed, the enhanced interaction between graphene and CrI&lt;sub&gt;3&lt;/sub&gt; stabilized the charge distribution, and the quantum anomalous Hall gap was tuned from 6 to 22 meV.&lt;/p&gt;&lt;p&gt;Shandite with Ni&lt;sub&gt;3&lt;/sub&gt;Pb&lt;sub&gt;2&lt;/sub&gt;S&lt;sub&gt;2&lt;/sub&gt; chemical formula and &lt;span&gt;&lt;/span&gt;&lt;math&gt;&lt;/math&gt; symmetry contains the kagome sublattice formed by transition metal atoms. Surajit Basak et al. [apxr.202300025] theoretically investigated the dynamical properties of &lt;i&gt;T&lt;/i&gt;&lt;sub&gt;3&lt;/sub&gt;Pb&lt;sub&gt;2&lt;/sub&gt;&lt;i&gt;Ch&lt;/i&gt;&lt;sub&gt;2&lt;/sub&gt; (&lt;i&gt;T&lt;/i&gt; = Pd,Pt, and &lt;i&gt;Ch&lt;/i&gt; = S,Se) with a shandite structure. The studied compounds realized the phonon Dirac nodal points and lines, phonon surface states, while Pt&lt;sub&gt;3&lt;/sub&gt;Pb&lt;sub&gt;2&lt;/sub&gt;S&lt;sub&gt;2&lt;/sub&gt; was unstable and exhibited the structural phase transition from &lt;span&gt;&lt;/span&gt;&lt;math&gt;&lt;/math&gt; to &lt;span&gt;&lt;/span&gt;&lt;math&gt;&lt;/math&gt;.&lt;/p&gt;&lt;p&gt;Topological spintronics was presented without spin-orbit interaction by Muhammad Nadeem et al. [apxr.202300028], where topological switching of ","PeriodicalId":100035,"journal":{"name":"Advanced Physics Research","volume":"4 3","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-01-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/apxr.202400196","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143595663","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}

{"title":"Quantum Mechanics in Plasmonic Nanocavities: from Theory to Applications","authors":"Tao Ding,&nbsp;Christos Tserkezis,&nbsp;Christos Mystilidis,&nbsp;Guy A. E. Vandenbosch,&nbsp;Xuezhi Zheng","doi":"10.1002/apxr.202400144","DOIUrl":"https://doi.org/10.1002/apxr.202400144","url":null,"abstract":"<p>Quantum mechanical effects in plasmonic nanocavities have attracted strong interest in the last two decades, related to both their experimental realization and implementation in technological applications, and to the challenges that need to be overcome in their theoretical modeling. This review summarizes the basic theories of quantum plasmonics, its modeling strategies, and the material systems that support it. Particularly it is focused on recent progress in quantum plasmonics based on the nanoparticle-on-mirror (NPoM) structure, i.e., plasmonic nanoparticles separated from an underlying metallic substrate via an ultrathin spacer, which provides an elegant route toward cost-effective fabrication of a large number of similar plasmonic cavities. A dramatic shift of research trends is seen from basic modeling to applications in nano-optics, polaritonics, chemistry, and biosensing, gradually making the transition from fundamental, curiosity-driven research to applied science.</p>","PeriodicalId":100035,"journal":{"name":"Advanced Physics Research","volume":"4 4","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-01-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/apxr.202400144","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143818339","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}

{"title":"Issue Information (Adv. Phys. Res. 1/2025)","authors":"","doi":"10.1002/apxr.202570002","DOIUrl":"https://doi.org/10.1002/apxr.202570002","url":null,"abstract":"","PeriodicalId":100035,"journal":{"name":"Advanced Physics Research","volume":"4 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-01-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/apxr.202570002","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143113679","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}

{"title":"A Near Room Temperature Curie Temperature in a New Type of Diluted Magnetic Semiconductor (Ba,K)(Zn,Mn)2As2 (Adv. Phys. Res. 1/2025)","authors":"Yi Peng,&nbsp;Xiang Li,&nbsp;Luchuan Shi,&nbsp;Guoqiang Zhao,&nbsp;Jun Zhang,&nbsp;Jianfa Zhao,&nbsp;Xiancheng Wang,&nbsp;Bo Gu,&nbsp;Zheng Deng,&nbsp;Yasutomo J. Uemura,&nbsp;Changqing Jin","doi":"10.1002/apxr.202570001","DOIUrl":"https://doi.org/10.1002/apxr.202570001","url":null,"abstract":"<p><b>Room-temperature ferromagnetism in diluted magnetic semiconductors</b></p><p>Diluted magnetic semiconductors (DMS), which combine the advantages of carrier processes in semiconductors and spin storage in ferromagnets, have significant impacts on generating brand new information technologies. However, achieving room-temperature ferromagnetism in a controllable mode for DMS is a major challenge. In article number 2400124, Bo Gu, Zheng Deng, Changqing Jin and co-workers report experimental enhancement of <i>T_C</i> to a record 260 K for the new-generation DMS material (Ba,K)(Zn,Mn)₂As₂ (or “BZA”) through high-pressure synthesis that effectively optimizes spin and charge doping.\u0000\u0000 <figure>\u0000 <div><picture>\u0000 <source></source></picture><p></p>\u0000 </div>\u0000 </figure></p>","PeriodicalId":100035,"journal":{"name":"Advanced Physics Research","volume":"4 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-01-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/apxr.202570001","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143113675","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}

{"title":"Miniaturized Mechanical Antennas: Advances, Challenges, and Future Directions","authors":"Hao Ren","doi":"10.1002/apxr.202400074","DOIUrl":"https://doi.org/10.1002/apxr.202400074","url":null,"abstract":"<p>In the past decade, miniaturized mechanical antennas have become a research focus. Several types of mechanical antennas based on different operation principles, including mechanical antennas based on magnetoelectric effect, mechanical antennas based on permanent magnets, mechanical antennas based on electrets, and mechanical antennas based on piezoelectric resonators, are presented, all with sizes significantly smaller than conventional electrical antennas operating at the same resonant frequencies. This review focuses on the advances in mechanical antennas, potential applications as well as challenges and potential future directions for further performance improvement. Although the sizes of the state-of-the-art mechanical antennas are several orders of magnitude smaller than traditional electrical counterparts with the same resonant frequencies, the reported maximum operation distance of mechanical antennas is still short, which is a major challenge for it to be widely implemented. By adopting new materials for mechanical antennas, adopting array configurations, adopting receiving antennas with higher sensitivity, and building new electromagnetic-electromechanical coupled simulation methods, the maximum operation distance may be significantly improved, making mechanical antennas widely implemented in the Internet of Things (IoT), wireless sensor networks (WSN), implantable medical devices (IMD), and portable electronics applications.</p>","PeriodicalId":100035,"journal":{"name":"Advanced Physics Research","volume":"4 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-12-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/apxr.202400074","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143117906","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}

{"title":"Revealing Resistive Switching of Phase Transitions in an Al-Doped Single Crystal of VO2 by DC and Pulsed Electrical Measurements","authors":"Larisa Patlagan,&nbsp;George M. Reisner,&nbsp;Bertina Fisher","doi":"10.1002/apxr.202400112","DOIUrl":"https://doi.org/10.1002/apxr.202400112","url":null,"abstract":"<p>The simple phase diagram of pure VO₂ consisting of an insulating monoclinic M1 phase and a metallic tetragonal R phase with a steep insulator-metal-transition (IMT) at TIMT = 340 K, is enriched by two additional insulating phases, a triclinic (T) and a monoclinic (M2) and multiple phase transitions, when strained or doped with M3⁺ions (M = Ga, Al, Cr, Fe, Mg). Under low-current R(T) measurements, the T(M1 → M2) and IMT are the only once detected by X-ray diffraction that show reproducible resistive switching (RS) and hysteresis typical of first-order transitions. Following the surprising detection of the RS associated with the M1→T transition induced by a high electric field in Ga-, Al-, and Cr-doped VO₂ crystals, we attempted to uncover those associated with additional transitions in Al-doped VO₂ nanostructures, as reported by Strelcov et al., Nano Letters 2012. Reported herein is the investigation of a single crystal of nominal Al_0.01V_0.99O₂ composition, by repeated direct current (DC) and pulsed IV measurements at fixed ambient temperatures below and at room temperature (RT). RS associated with the various phase transitions appeared in the nonlinear I(V) regime induced by self-heating (Joule heating), including all those that are absent under low-electric-current measurements.</p>","PeriodicalId":100035,"journal":{"name":"Advanced Physics Research","volume":"4 2","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-12-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/apxr.202400112","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143380730","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}

{"title":"Roadmap on Weak Measurements in Optics","authors":"Ritwik Dhara,&nbsp;Niladri Modak,&nbsp;Shyamal Guchhait,&nbsp;Nirmalya Ghosh","doi":"10.1002/apxr.202400136","DOIUrl":"https://doi.org/10.1002/apxr.202400136","url":null,"abstract":"<p>Even though weak measurements and weak value amplification (WVA) are founded on the principles of quantum mechanics and quantum measurements, these have found widespread applications in optics due to their inherent origin in wave interference. Besides their use in addressing foundational questions of quantum mechanics or for resolving quantum paradoxes, weak measurements and WVA have thus been used for numerous metrological applications, e.g., quantification of small optical beam displacement, tiny angular rotation, determination of extremely small phase shifts, spectral shifts, unraveling weak fundamental optical effects, improved optical imaging, amplifying weak signal and extracting small physical parameters and so forth. In this review, after providing the mathematical foundation of weak measurement and WVA, some of the metrological applications of weak measurements in the classical optics domain are briefly summarized, and the controversies and debates on the potential advantages of WVA in the estimation and detection of weak signal are discussed, and the interferometric philosophy of WVA is elucidated. The experimental weak measurement and WVA schemes in the domain of quantum optics are also discussed and highlighted the new perspectives and emerging trends of weak measurements in both the classical and quantum optics domain and their prospects in the development of next-generation ultra-sensitive optical devices.</p>","PeriodicalId":100035,"journal":{"name":"Advanced Physics Research","volume":"4 4","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/apxr.202400136","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143818403","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}

{"title":"Superconducting Nanowire Detection of Neutral Atoms and Molecules via Their Internal and Kinetic Energy in the eV Range","authors":"M. Strauß,&nbsp;R. Gourgues,&nbsp;M. F. X. Mauser,&nbsp;L. Kulman,&nbsp;M. Castaneda,&nbsp;A. Fognini,&nbsp;A. Shayeghi,&nbsp;P. Geyer,&nbsp;M. Arndt","doi":"10.1002/apxr.202400133","DOIUrl":"https://doi.org/10.1002/apxr.202400133","url":null,"abstract":"<p>Superconducting nanowires are widely recognized as exceptional sensors in photonics, information processing, and astronomy. Even a single infrared photon can break Cooper pairs, generate a hot spot and trigger a measurable quantum phase transition. Here, it is demonstrated that this detection capability is far more versatile. Ultrathin nanowires are shown to be sensitive to the internal energy of atoms as well as to the kinetic energy of neutral molecules, here within the energy range of 10–20 and 3–6 eV, respectively. Superconducting nanowires achieve higher detection quantum yields than channel electron multipliers in the detection of metastable atoms and they surpass the efficiency of secondary electron detectors by more than a factor of 10⁶ in the detection of molecules at impact energies below 5 eV. This remarkable sensitivity paves the way for new applications in atomic and molecular beam physics, establishing nanowires as a crucial tool for future precision measurements.</p>","PeriodicalId":100035,"journal":{"name":"Advanced Physics Research","volume":"4 2","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-12-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/apxr.202400133","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143380749","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}