Results 171 to 180 of about 108,889 (317)

Photonic Time Crystals and Time‐Varying Electromagnetic Metamatter: A New Direction for Ultrafast Tunable Photonic and Microwave Materials and Devices

Advanced Science, EarlyView.
Photonic time crystals (PTCs) are systems in which electromagnetic parameters are modulated periodically in time, producing momentum bandgaps via temporal scattering rather than spatial Bragg processes. This review examines the theoretical frameworks, modeling, and computational tools for time‐varying media, and summarizes experimental demonstrations ...
Ranjan Kumar Patel, Shriram Ramanathan, Ronald P. Jenkins, Michael J. Carter   +3 more
wiley   +1 more source

Ab-initio phonon calculation for LaTa2NO5 / Pc (7) / materials id 777773 [PDF]

Ab-initio phonon calculation for LaTa2NO5 / Pc (7) Phonon band structure, phonon DOS, thermal properties at constant volume, and phonon raw data are presented.
Atsushi Togo
core  

Recent Advances in Laser‐Induced Graphene‐Based Gas Sensors: From Sensing Mechanisms to Biomedical Applications

Advanced Science, EarlyView.
Laser‐induced graphene (LIG) provides a scalable, laser‐direct‐written route to porous graphene architecture with tunable chemistry and defect density. Through heterojunction engineering, catalytic functionalization, and intrinsic self‐heating, LIG achieves highly sensitive and selective detection of NOX, NH3, H2, and humidity, supporting next ...
Md Abu Sayeed Biswas, Ankan Dutta, Shuvendu Das, Abu Musa Abdullah, Wanqing Zhang, Fatema Tuz Zohra, Huanyu Cheng   +6 more
wiley   +1 more source

Electron pressure drives THz phonons in metal-metal superlattices. [PDF]

Nat Commun
Pudell JE, Mattern M, Herzog M, von Reppert A, Singh CK, Schick D, Hehn M, Boesenberg U, Rodriguez-Fernandez A, Shayduk R, Jo W, Möller J, Hallmann J, Wrigley J, Oppeneer PM, Madsen A, Bargheer M.   +16 more
europepmc   +1 more source

Ab-initio phonon calculation for CdSO4 / Pmn2_1 (31) / materials id 5679 [PDF]

Ab-initio phonon calculation for CdSO4 / Pmn2_1 (31) Phonon band structure, phonon DOS, thermal properties at constant volume, and phonon raw data are presented.
Atsushi Togo
core  

Tunable Negative Thermal Expansion in Fe/Cr‐Substituted Nd2Co17 Compounds via Magnetoelastic Coupling

Advanced Science, EarlyView.
This study achieves anisotropic thermal expansion tuning in Nd2(Co1‐xFex)17‐yCry compounds via a magnetoelastic strategy. Variable‐temperature synchrotron X‐ray diffraction reveals that increased Fe content induces switchable lattice responses. Compositional control reduces the volume expansion coefficient αV by 20% (x═0.7) and modulates TC (442–625 K),
Jiayuan Li, Chenfei Qv, Haoran Tu, Qinfen Gu, Wayne D. Hutchison, Stewart J. Campbell, Zhenxiang Cheng, Wenquan Wang, Jianli Wang   +8 more
wiley   +1 more source

Soft mode origin of charge ordering in superconducting kagome CsV₃Sb₅. [PDF]

Nat Commun
McGuinness PH, Henssler F, Alkorta M, Graf von Westarp MJ, Korshunov A, Bosak A, Ishikawa D, Baron AQR, Merz M, Haghighirad AA, Vergniory MG, Souliou SM, Heid R, Errea I, Le Tacon M.   +14 more
europepmc   +1 more source

Ab-initio phonon calculation for Ba2SrI6 / P2_1/c (14) / materials id 756202 [PDF]

Ab-initio phonon calculation for Ba2SrI6 / P2_1/c (14) Phonon band structure, phonon DOS, thermal properties at constant volume, and phonon raw data are presented.
Atsushi Togo
core  

New High‐Tc Charge‐Transfer Multiferroicity in the Quasi‐2D Antiferromagnet CrSbS3

Advanced Science, EarlyView.
ABSTRACT Low‐dimensional magnets, particularly 2D systems, offer a rich platform for realizing unconventional multiferroic mechanisms, especially when multiple polarization channels coexist. In the quasi‐2D antiferromagnet CrSbS3, which crystallizes in the centrosymmetric orthorhombic space group Pnma and orders magnetically at TN ≈ 90 K, two ...
Hung‐Cheng Wu, Yu‐Hsin Liao, Chih‐Chung Tsai, Pei‐Ying Yang, Yu‐Hao Chang, Yu‐Hui Liang, D. Chandrasekhar Kakarla, Ajay Tiwari, C. Dhanasekhar, Chin‐Wei Wang, Daisuke Okuyama, Chia‐Nung Kuo, Chin‐Shan Lue, Tzu‐Hsuan Weng, Kung‐Hsuan Lin, Jau‐Wern Chiou, Chi‐Hung Lee, Hung‐Duen Yang   +17 more
wiley   +1 more source

Quantum beats of exciton-polarons in CsPbI₃ perovskite nanocrystals. [PDF]

Nat Commun
Trifonov AV, Nestoklon MO, Hollberg MA, Grisard S, Kudlacik D, Kolobkova EV, Kuznetsova MS, Goupalov SV, Kaspari JM, Reiter DE, Yakovlev DR, Bayer M, Akimov IA.   +12 more
europepmc   +1 more source