162 citations · 891 across the 18 of their papers we have counts for
18 papers
Colossal magnetoresistance from spin-polarized polarons in an Ising system
Ying-Fei Li, Emily M. Been, Sudhaman Balguri +12
Recent experiments suggest a new paradigm towards novel colossal magnetoresistance (CMR) in a family of materials EuMX(M=Cd, In, Zn; X=P, As), distinct from the traditional…
Contrasting electron-phonon interaction between electron- and hole-doped cuprates
Qinda Guo, Ke-Jun Xu, Magnus H. Berntsen +15
Spin- and charge-lattice interactions are potential key factors in the microscopic mechanism of high-temperature superconductivity in cuprates. Although both interactions can drama…
Anomalous normal state gap in an electron-doped cuprate
Ke-Jun Xu, Junfeng He, Su-Di Chen +11
In the underdoped n-type cuprate Nd2-xCexCuO4, long-ranged antiferromagnetic order reconstructs the Fermi surface, resulting in a putative antiferromagnetic metal with small pocket…
Bogoliubov Quasiparticle on the Gossamer Fermi Surface in Electron-Doped Cuprates
Ke-Jun Xu, Qinda Guo, Makoto Hashimoto +14
In contrast to hole-doped cuprates, electron-doped cuprates consistently exhibit strong antiferromagnetic correlations with a commensurate (π, π) ordering wave vector, leading to t…
Differentiated roles of Lifshitz transition on thermodynamics and superconductivity in La2-xSrxCuO4
Yong Zhong, Zhuoyu Chen, Su-Di Chen +7
The effect of Lifshitz transition on thermodynamics and superconductivity in hole-doped cuprates has been heavily debated but remains an open question. In particular, an observed p…
Identification of a Critical Doping for Charge Order Phenomena in Bi-2212 Cuprates via RIXS
Haiyu Lu, Makoto Hashimoto, Su-Di Chen +16
Identifying quantum critical points (QCPs) and their associated fluctuations may hold the key to unraveling the unusual electronic phenomena observed in cuprate superconductors. Re…
Unconventional hysteretic transition in a charge density wave
B. Q. Lv, Alfred Zong, D. Wu +25
Hysteresis underlies a large number of phase transitions in solids, giving rise to exotic metastable states that are otherwise inaccessible. Here, we report an unconventional hyste…
Electronic structure of superconducting nickelates probed by resonant photoemission spectroscopy
Zhuoyu Chen, Motoki Osada, Danfeng Li +14
The discovery of infinite-layer nickelate superconductors has spurred enormous interest. While the Ni cations possess nominally the same 3 configuration as Cu in…
Superconducting fluctuations in overdoped BiSrCaCuO
Yu He, Su-Di Chen, Zi-Xiang Li +13
Fluctuating superconductivity - vestigial Cooper pairing in the resistive state of a material - is usually associated with low dimensionality, strong disorder or low carrier densit…
Momentum Dependence of the Nematic Order Parameter in Iron-Based Superconductors
H. Pfau, S. D. Chen, M. Yi +11
The momentum dependence of the nematic order parameter is an important ingredient in the microscopic description of iron-based high-temperature superconductors. While recent report…
Detailed band structure of twinned and detwinned BaFeAs studied with angle-resolved photoemission spectroscopy
H. Pfau, C. R. Rotundu, J. C. Palmstrom +6
We study the band structure of twinned and detwinned BaFeAs using angle-resolved photoemission spectroscopy (ARPES). The combination of measurements in the ordered and norm…
Fermi surface reconstruction in electron-doped cuprates without antiferromagnetic long-range order
J. -F. He, C. R. Rotundu, M. S. Scheurer +12
Fermi surface (FS) topology is a fundamental property of metals and superconductors. In electron-doped cuprate Nd2-xCexCuO4 (NCCO), an unexpected FS reconstruction has been observe…
Metallic surface states in a correlated d-electron topological Kondo insulator candidate FeSb2
Ke-Jun Xu, Su-Di Chen, Yu He +9
The resistance of a conventional insulator diverges as temperature approaches zero. The peculiar low temperature resistivity saturation in the 4f Kondo insulator (KI) SmB6 has spur…
Rapid change of superconductivity and electron-phonon coupling through 19% doping in Bi2212
Yu He, Makoto Hashimoto, Dongjoon Song +12
Electron-boson coupling plays a key role in superconductivity for many systems. However, in copper-based high-temperature () superconductors, its relation to superconductivity…
Dispersive charge density wave excitations and temperature dependent commensuration in Bi2Sr2CaCu2O8+δ
Laura Chaix, Giacomo Ghiringhelli, Yingying Peng +14
Experimental evidence on high-Tc cuprates reveals ubiquitous charge density wave (CDW) modulations, which coexist with superconductivity. Although the CDW had been predicted by the…
Distinct Electronic Structure for the Extreme Magnetoresistance in YSb
Junfeng He, Chaofan Zhang, Nirmal J. Ghimire +15
An extreme magnetoresistance (XMR) has recently been observed in several non-magnetic semimetals. Increasing experimental and theoretical evidence indicates that the XMR can be dri…
High Resolution Angle Resolved Photoemission with Tabletop 11eV Laser
Yu He, Inna Vishik, Ming Yi +12
We developed a table-top vacuum ultraviolet (VUV) laser with nm wavelength (10.897eV) and demonstrated its viability as a photon source for high resolution angle-resolved…
Angle-resolved Photoemission Spectroscopy Study on the Surface States of the Correlated Topological Insulator YbB6
M. Xia, J. Jiang, Z. R. Ye +10
We report the electronic structure of YbB6, a recently predicted moderately correlated topological insulator, measured by angle-resolved photoemission spectroscopy. We directly obs…