Results 91 to 100 of about 92,670 (212)

Uranium Doped Gallium Nitride Epitaxial Thin Films

Advanced Electronic Materials, EarlyView.
Uranium was controllably added to gallium nitride using molecular beam epitaxy. The uranium atoms segregated into vertically oriented regions with higher doping levels. Concentrations up to a few percent were achieved without showing significant degradation in the crystalline quality or optical characteristics. Low electrical resistivity was maintained
J. Pierce Fix, Sabin Regmi, Aaron G. Penders, Sohail Shah, Kevin D. Vallejo, Volodymyr B. Buturlim, Belief Rifore, Krzysztof Gofryk, Mukesh Bachhav, Nicholas J. Borys, Brelon J. May   +10 more
wiley   +1 more source

Superconducting TaH5 at high pressure

New Journal of Physics, 2019
Recently, the significant development, in the field of high-temperature superconductivity among the compressed elements hydrides (such as LaH _10 ), opens up a door in pursuing room-temperature superconductors.
Hefei Li, Xue Li, Hui Wang, Guangtao Liu, Yinwei Li, Hanyu Liu   +5 more
doaj   +1 more source

Theory of high-T_c superconductivity based on the fermion-condensation quantum phase transition

, 2001
A theory of high temperature superconductivity based on the combination of the fermion-condensation quantum phase transition and the conventional theory of superconductivity is presented.
A. B. Migdal, A. Kaminski, A. Lanzara, D. S. Dessau, G. E. Volovik, G. Grüner, J. Bardeen, J. Dukelsky, L. D. Landau, M. Kugler, M. Ya. Amusia, M. Ya. Amusia, P. V. Bogdanov, R. B. Laughlin, S. A. Artamonov, S. A. Artamonov, T. Valla, V. A. Khodel, V. A. Khodel, V. R. Shaginyan, V. R. Shaginyan   +20 more
core   +1 more source

Pressure‐Induced Structural and Magnetic Evolution in Layered Antiferromagnet YbMn2Sb2

Advanced Electronic Materials, EarlyView.
Pressure tunes the delicate balance between structure, magnetism, and electronic states in quantum materials. In YbMn2Sb2, high‐pressure X‐ray and neutron diffraction reveal a trigonal‐to‐monoclinic transition near 3.5 GPa, accompanied by unconventional magnetic ordering.
Mingyu Xu, Matt Boswell, Aya Rutherford, Cheng Peng, Ying Zhou, Shuyang Wang, Zhaorong Yang, Antonio M. dos Santos, Haidong Zhou, Weiwei Xie   +9 more
wiley   +1 more source

High - Temperature Superconductivity in Iron Based Layered Compounds

, 2008
We present a review of basic experimental facts on the new class of high - temperature superconductors - iron based layered compounds like REOFeAs (RE=La,Ce,Nd,Pr,Sm...), AFe_2As_2 (A=Ba,Sr...), AFeAs (A=Li,...) and FeSe(Te).
Alireza P L, Anderson P W, Anisimov V I, Anisimov V I, Bao W, Barzykin V, Belyavskii V I, Bhoi D, Boris A V, Chen G F, Chen G F, Chen H, Chong S V, Coldea A I, Ding H, Dong J K, Drew A J, Eschrig H, Evtushinsky D V, Ewings R A, Fang M H, Garbarino G, Ge J, Ginzburg V L, Gor'kov L P, Gor'kov L P, Han F, Held K, Higashitaniguchi S, Hsu F-C, Huang Q, Hüfner S, Izyumov Yu A, Izyumov Yu A, Izyumov Yu A, Izyumov Yu A, Izyumov Yu A, Izyumov Yu A, Keldysh L V, Keldysh L V, Klimczuk T, Kopaev Yu V, Kopaev Yu V, Kozhevnikov V L, Kozlov A N, Kozlov A N, Kurmaev E Z, Kuroki K, Liu C, Liu C, Liu H, Liu R H, Luetkens H, Ma F, Maksimov E G, Maksimov E G, Maksimov E G, Markert J T, Matano K, Mikhail V Sadovskii, Miyake T, Moskalenko V A, Moskalenko V A, Mu G, Nekrasov I A, Nekrasov I A, Nekrasov I A, Nekrasov I A, Nekrasov I A, Nomura T, Ovchinnikov S G, Ozawa T C, Pan M H, Plakida N M, Putti M, Qi X-L, Qiu Y, Ren Z-A, Ren Z-A, Ronning F, Sadovskii M V, Sadovskii M V, Sadovskii M V, Sato T, Sebastian S E, Shaked H, Shein I R, Shein I R, Shein I R, Shorikov A O, Tegel M, Vinod K, Volkov B A, Vollhardt D, Volovik G E, Volovik G E, Volovik G E, Volovik G E, Wang C, Wang X C, Wang X F, Wang Y, Wen H-H, Wray L, Xu G, Yang J, Yang J, Yang J, Yang L X, Yuan H Q, Zabolotnyy V B, Zbiri M, Zhang S B, Zhang Y, Zhao L, Zhigadlo N D, Zhu X, Zhu X   +117 more
core   +1 more source

Topological Materials and Related Applications

Advanced Electronic Materials, EarlyView.
This review covers topological materials—including topological insulators, quantum valley Hall and quantum spin Hall insulators, and topological Weyl and Dirac semimetals—as well as their most recent advancements in fields such as spintronics, electronics, photonics, thermoelectrics, and catalysis.
Carlo Grazianetti, Roberto Mantovan, Emanuele Longo, Harold J. W. Zandvliet, Pantelis Bampoulis, Yu Pan, Fan Li, Xia Wang, Payton Downey, Alessandro Molle   +9 more
wiley   +1 more source

Fe-based superconductors: unity or diversity?

, 2008
Does the high temperature superconductivity observed in the newly discovered iron-pnictide materials represent another example of the same essential physics responsible for superconductivity in the cuprates, or does it embody a new mechanism?Comment ...
C Fang, C Xu, Hong Yao, II Mazin, J Zhao, Q Huang, Steven A. Kivelson, V Hinkov, Y Kamihara   +8 more
core   +1 more source

Automatic Determination of Quasicrystalline Patterns from Microscopy Images

Advanced Intelligent Discovery, EarlyView.
This work introduces a user‐friendly machine learning tool to automatically extract and visualize quasicrystalline tiling patterns from atomically resolved microscopy images. It uses feature clustering, nearest‐neighbor analysis, and support vector machines. The method is broadly applicable to various quasicrystalline systems and is released as part of
Tano Kim Kender, Marco Corrias, Cesare Franchini   +2 more
wiley   +1 more source

Flat-band ratio and quantum metric in the superconductivity of modified Lieb lattices

Communications Physics
Flat bands may offer a route to high critical temperatures of superconductivity. It has been predicted that the quantum geometry of the bands as well as the ratio of the number of flat bands to the number of orbitals determine flat band superconductivity.
Reko P. S. Penttilä, Kukka-Emilia Huhtinen, Päivi Törmä   +2 more
doaj   +1 more source

Observation of superconductivity in a nontrivial $${{{{\mathcal{Z}}}}}_{2}$$ Z 2 approximant quasicrystal

Communications Materials
Superconductivity and nontrivial topology are highly sought-after phenomena in quantum materials. While many topological crystalline materials have been found to exhibit superconductivity, their presence in quasicrystals—materials with a unique aperiodic
Pavan Kumar Meena, Rahul Verma, Arushi, Sonika Jangid, Roshan Kumar Kushwaha, Rhea Stewart, Adrian D. Hillier, Bahadur Singh, Ravi Prakash Singh   +8 more
doaj   +1 more source