Growth and characterization of single crystal cubic TaN and hexagonal Ta2N films on c-plane SapphireTwo single crystal phases of tantalum nitride were stabilized on c-plane sapphire using molecular beam epitaxy. The phases were identified to be δ-TaN with a rocksalt cubic structure and…Anand Ithepalli, Amit Rohan Rajapurohita, Arjan Singh et al.·Feb 26, 2025SaveLearn
Comment on 2501.17230 and 2502.00103 "Phonon-mediated electron attraction in SrTiO3 via the generalized Frohlich and deformation potential mechanisms" and "Theory of ab initio downfolding with arbitrary range electron-phonon coupling"This comment critically examines the claims made in arXiv papers arXiv:2501.17230 and arXiv:2502.00103, which argue that a multiplicity of polar optical phonons can generate a long-range attractive…Jonathan Ruhman·Feb 25, 2025SaveLearn
Electronic structures across superconductor-insulator transition in Ruddlesden-Popper bilayer nickelate filmsHigh-transition-temperature (TC) superconductivity is recently discovered in Ruddlesden-Popper (RP) nickelate films with extraordinarily strong oxidation. While investigating phase diagrams is…Yu Miao, Runqing Luan, Yaqi Chen et al.·Feb 25, 2025SaveLearn
Probing Mixed Valence States by Nuclear Spin-Spin Relaxation Time MeasurementsSeveral elements in the periodic table exhibit an interesting and often overlooked feature: They skip certain valence states which is discussed in the field of superconductivity to be in favor of…Yoshihiko Ihara, Masakazu Shimohashi, Markus Kriener·Feb 25, 2025SaveLearn
The Maximum Tc of Conventional Superconductors at Ambient PressureThe theoretical maximum critical temperature (Tc) for conventional superconductors at ambient pressure remains a fundamental question in condensed matter physics. Through analysis of…Kun Gao, Tiago F. T. Cerqueira, Antonio Sanna et al.·Feb 25, 2025SaveLearn
Orbital Fulde-Ferrell State versus Orbital Larkin-Ovchinnikov StateOrbital Fulde-Ferrell-Larkin-Ovchinnikov (FFLO) states are analyzed within mean-field theory, where orbital FF state is layer-polarized with inversion symmetry broken, while orbital LO state is…Noah F. Q. Yuan·Feb 25, 2025SaveLearn
Revisiting the spin-orbit scattering in small-sized superconducting particles in the magnetic fieldThe Knight shift of nuclear magnetic resonance is an experimental probe of the paramagnetic spin susceptibility in metals. Information about the electron pairing in superconductors can be extracted…Serguei N. Burmistrov·Feb 25, 2025SaveLearn
Josephson vortex system in a flux-flow regime in electron doped high-Tc superconductor Nd(2-x)CexCuO4For an epitaxial film of an electron-doped superconductor Nd(2-x)CexCuO4 (x=0.145), in a mixed state, a well-defined step structure is observed on the dependence of the c-axis flux-flow resistance on…T. B. Charikova, A. M. Bartashevich, V. N. Neverov et al.·Feb 24, 2025SaveLearn
Status of Iron Based Superconductors: characteristics and relevant properties for applicationsSince the discovery of iron-based superconductors (IBSs) on LaFePO in 2006, many types of IBSs have been fabricated. IBSs have usually been compared to cuprates and MgB2, and the methodology of…Kazumasa Iida·Feb 24, 2025SaveLearn
Phase coherence of charge-6e superconductors via a frustrated Kagome XY antiferromagnetRecent experimental evidence for the charge-6e condensed phase in kagome superconductors has generated significant interest. We investigate the unconventional superconductivity in the kagome…Feng-Feng Song, Guang-Ming Zhang·Feb 24, 2025SaveLearn
Unraveling Enhanced Superconductivity in Single-layer FeSe through Substrate Surface TerminationsSingle-layer FeSe films grown on (001) SrTiO3 substrates have shown a significant increase in superconducting transition temperature compared to bulk FeSe. Several mechanisms have been proposed to…Qiang Zou, Gi-Yeop Kim, Jong-Hoon Kang et al.·Feb 24, 2025SaveLearn
Discovery of High-Temperature Superconducting Ternary Hydrides via Deep LearningThe discovery of novel high-temperature superconductor materials holds transformative potential for a wide array of technological applications. However, the combinatorially vast chemical and…Xiaoyang Wang, Chengqian Zhang, Zhenyu Wang et al.·Feb 23, 2025SaveLearn
Perfect spin-triplet pairing in two-dimensional Ising superconductors purified by indirect excitonsMuch research effort has been devoted to interfacial or two-dimensional (2D) superconductors, but the underlying pairing mechanisms and pairing symmetries are highly controversial in most cases. Here…Chuanyi Zhang, Yu Li, Ping Cui et al.·Feb 23, 2025SaveLearn
MPd5 kagome superconductors studied by density functional calculationsKagome materials, which are composed of hexagons tiled with a shared triangle, have inspired enormous interest due to their unique structures and rich physical properties; exploring superconducting…Dan Li, Zhengxuan Wang, Panshi Jing et al.·Feb 21, 2025SaveLearn
Superconducting phenomena in systems with unconventional magnetsIn this work we review the recent advances on superconducting phenomena in junctions formed by superconductors and unconventional magnets. Conventional magnets, such as ferromagnets and…Yuri Fukaya, Bo Lu, Keiji Yada et al.·Feb 21, 2025SaveLearn
Structural and superconducting parameters of highly compressed sulfurSulfur was the first nonmetal element which was transformed to a superconductor by applying megabar pressure. Recent pioneering experimental developments in measuring the superconducting energy gap…Evgeny F. Talantsev, Evgeniya G. Valova-Zaharevskaya·Feb 21, 2025SaveLearn
Vertex correction for the linear and nonlinear optical responses in superconductors: multiband effect and topological superconductivityIntensive research has revealed intriguing optical responses in topological materials. This paper focuses on the optical responses in s-wave superconductors with a Rashba spin-orbit coupling and a…Hiroto Tanaka, Youichi Yanase·Feb 21, 2025SaveLearn
Strong-coupling high-T c superconductivity in doped correlated band insulatorsWe explore the superconducting properties of the bilayer Hubbard model, which exhibits a high transition temperature (T c) for an s pairing, using a cluster extension of the dynamical…Yusuke Nomura, Motoharu Kitatani, Shiro Sakai et al.·Feb 20, 2025SaveLearn
Impact of Pressure and Apical Oxygen Vacancies on Superconductivity in La3Ni2O7The bilayer nickelate La3Ni2O7 under pressure has recently emerged as a promising system for high-Tc superconductivity. In this work, we investigate the fate of the superconducting…Chen Lu, Ming Zhang, Zhiming Pan et al.·Feb 20, 2025SaveLearn
Quantum fluctuations-driven Melting Transitions in Two-dimensional SuperconductorsQuantum fluctuations are pivotal in driving quantum phase transitions, exemplified by the quantum melting of Wigner crystals into Fermi liquids in electron systems. However, their impact on…Dong Qiu, Yuting Zou, Chao Yang et al.·Feb 20, 2025SaveLearn
Superconductivity Favored Anisotropic Phase Stiffness in Infinite-Layer NickelatesIn unconventional superconductors such as cuprates and iron pnictides and chalcogenides, phase stiffness - a measure of the energy cost associated with superconducting phase variations - is on the…Minyi Xu, Dong Qiu, Minghui Xu et al.·Feb 20, 2025SaveLearn
Nodeless Superconducting State in the Presence of Zero-Field Staggered Magnetization in CeRh2As2The tetragonal heavy-fermion superconductor CeRh2As2 with a critical temperature Tc ≈ 0.34 K exhibits an intriguing magnetic field-induced transition between likely distinct…J. Juraszek, G. Chajewski, D. Kaczorowski et al.·Feb 20, 2025SaveLearn
Isotropic superconductivity in pressurized trilayer nickelate La4Ni3O10Evidence of superconductivity (SC) has recently been reported in pressurized La3Ni2O7 and La4Ni3O10, providing a new platform to explore high-temperature superconductivity. However, while zero…Di Peng, Yaolong Bian, Zhenfang Xing et al.·Feb 20, 2025SaveLearn
Discovery of a new phase in thin flakes of KV3Sb5 under pressureWe report results of magnetotransport measurements on KV3Sb5 thin flakes under pressure. Our zero-field electrical resistance reveals an additional anomaly emerging under pressure (p),…Zheyu Wang, Lingfei Wang, King Yau Yip et al.·Feb 20, 2025SaveLearn
AV3Sb5 kagome superconductors: a review with transport measurementsKagome systems have garnered considerable attention due to the unique features of the sublattice structure and band topology. The recently discovered kagome metals AV3Sb5 (where A = K, Rb, Cs)…Zhuokai Xu, Tian Le, Xiao Lin·Feb 19, 2025SaveLearn