Bypassing the lattice BCS-BEC crossover in strongly correlated superconductors through multiorbital physics [0.03%]
强关联超导体中通过多轨道物理规避晶格BCS-BEC交叉点
Niklas Witt,Yusuke Nomura,Sergey Brener et al.
Niklas Witt et al.
Superconductivity emerges from the spatial coherence of a macroscopic condensate of Cooper pairs. Increasingly strong binding and localization of electrons into these pairs compromises the condensate's phase stiffness, thereby limiting crit...
Hyeok Yoon,Yun Suk Eo,Jihun Park et al.
Hyeok Yoon et al.
Uranium ditelluride (UTe2) is the strongest contender to date for a p-wave superconductor in bulk form. Here we perform a spectroscopic study of the ambient pressure superconducting phase of UTe2, measuring conductance through point-contact...
Zoltán Kovács-Krausz,Dániel Nagy,Albin Márffy et al.
Zoltán Kovács-Krausz et al.
The layered van der Waals material ZrTe5 is known as a candidate topological insulator (TI), however its topological phase and the relation with other properties such as an apparent Dirac semimetallic state is still a subject of debate. We ...
Robust three-dimensional type-II Dirac semimetal state in SrAgBi [0.03%]
二维型II型三维狄拉克半导体SrAgBi中的稳健三维狄拉克半金属态
Zhixiang Hu,Junze Deng,Hang Li et al.
Zhixiang Hu et al.
Topological semimetals such as Dirac, Weyl or nodal line semimetals are widely studied for their peculiar properties including high Fermi velocities, small effective masses and high magnetoresistance. When the Dirac cone is tilted, exotic p...
Probing magnetic orbitals and Berry curvature with circular dichroism in resonant inelastic X-ray scattering [0.03%]
利用圆二色性研究共振非弹性X射线散射中的磁轨道和贝里曲率
Michael Schüler,Thorsten Schmitt,Philipp Werner
Michael Schüler
Resonant inelastic X-ray scattering (RIXS) can probe localized excitations at selected atoms in materials, including particle-hole transitions between the valence and conduction bands. These transitions are governed by fundamental propertie...
Emergent topological quantum orbits in the charge density wave phase of kagome metal CsV3Sb5 [0.03%]
Kagome金属CsV3Sb5电荷密度波相中拓扑量子轨道的涌现
Hengxin Tan,Yongkang Li,Yizhou Liu et al.
Hengxin Tan et al.
The recently discovered kagome materials AV3Sb5 (A = K, Rb, Cs) attract intense research interest in intertwined topology, superconductivity, and charge density waves (CDW). Although the in-plane 2 × 2 CDW is well studied, its out-of-plane...
K von Arx,Qisi Wang,S Mustafi et al.
K von Arx et al.
In high-temperature cuprate superconductors, stripe order refers broadly to a coupled spin and charge modulation with a commensuration of eight and four lattice units, respectively. How this stripe order evolves across optimal doping remain...
Electronic stripe patterns near the fermi level of tetragonal Fe(Se,S) [0.03%]
四方Fe(Se,S)电子能斯特效应异常及费米面附近电子条纹现象
M Walker,K Scott,T J Boyle et al.
M Walker et al.
FeSe1-xSx remains one of the most enigmatic systems of Fe-based superconductors. While much is known about the orthorhombic parent compound, FeSe, the tetragonal samples, FeSe1-xSx with x > 0.17, remain relatively unexplored. Here, we provi...
Complete field-induced spectral response of the spin-1/2 triangular-lattice antiferromagnet CsYbSe2 [0.03%]
完全场致谱响应的自旋-1/2三角晶格反铁磁体CsYbSe2
Tao Xie,A A Eberharter,Jie Xing et al.
Tao Xie et al.
Fifty years after Anderson's resonating valence-bond proposal, the spin-1/2 triangular-lattice Heisenberg antiferromagnet (TLHAF) remains the ultimate platform to explore highly entangled quantum spin states in proximity to magnetic order. ...
Evyatar Tulipman,Erez Berg
Evyatar Tulipman
The Wiedemann-Franz (WF) law, stating that the Lorenz ratio L = κ/(Tσ) between the thermal and electrical conductivities in a metal approaches a universal constant L0=π2kB2/(3e2) at low temperatures, is often interpreted as a signatu...