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Superconducting and normal-state anisotropy of the doped topological insulator SrBiSe
M. P. Smylie, K. Willa, H. Claus +8
SrBiSe and the related compounds CuBiSe and NbBiSe have attracted considerable interest, as these materials may be realizations of unconventiona…
Superconductivity, pairing symmetry, and disorder in the doped topological insulator SnInTe for x 0.10
M. P. Smylie, H. Claus, W. -K. Kwok +12
The temperature dependence of the London penetration depth in the superconducting doped topological crystalline insulator SnInTe was measured down to 450 mK for…
Growth and structural characterization of large superconducting crystals of LaCaCuO
J. A. Schneeloch, Z. Guguchia, M. B. Stone +6
Large crystals of LaCaCuO (La-Ca-2126) with and 0.15 have been grown and converted to bulk superconductors by high-pressure oxygen annealing. The…
Higgs mode in the d-wave superconductor Bi2Sr2CaCu2O8+x driven by an intense terahertz pulse
Kota Katsumi, Naoto Tsuji, Yuki I. Hamada +7
We investigated the terahertz (THz)-pulse driven nonlinear response in the d-wave cuprate superconductor Bi2Sr2CaCu2O8+x (Bi2212) using a THz pump near-infrared probe scheme in the…
Suppression of the antiferromagnetic order when approaching the superconducting state in a phase-separated crystal of KFeSe
Shichao Li, Yuan Gan, Jinghui Wang +15
We have combined elastic and inelastic neutron scattering techniques, magnetic susceptibility and resistivity measurements to study single-crystal samples of KFeSe,…
Anomalous density fluctuations in a strange metal
M. Mitrano, A. A. Husain, S. Vig +9
A central mystery in high temperature superconductivity is the origin of the so-called "strange metal," i.e., the anomalous conductor from which superconductivity emerges at low te…
Collapse of superconductivity in cuprates via ultrafast quenching of phase coherence
F. Boschini, E. H. da Silva Neto, E. Razzoli +16
The possibility of driving phase transitions in low-density condensates through the loss of phase coherence alone has far-reaching implications for the study of quantum phases of m…
Evidence for Majorana bound state in an iron-based superconductor
Dongfei Wang, Lingyuan Kong, Peng Fan +12
The search for Majorana bound state (MBS) has recently emerged as one of the most active research areas in condensed matter physics, fueled by the prospect of using its non-Abelian…
First-Order Reversal Curves of the Magnetostructural Phase Transition in FeTe
M. K. Frampton, J. Crocker, D. A. Gilbert +5
We apply the first-order reversal curve (FORC) method, borrowed from studies of ferromagnetic materials, to the magneto-structural phase transition of FeTe. FORC measurements revea…
Unexpected Enhancement of Three-Dimensional Low-Energy Spin Correlations in Quasi-Two-Dimensional FeTeSe System at High Temperature
Zhijun Xu, J. A. Schneeloch, Jinsheng Wen +8
We report inelastic neutron scattering measurements of low energy ( meV) magnetic excitations in the "11" system FeTeSe. The spin correlations ar…
Indium substitution effect on the topological crystalline insulator family (PbSn)InTe: Topological and superconducting properties
Ruidan Zhong, John Schneeloch, Qiang Li +3
Topological crystalline insulators (TCIs) have been of great interest in the area of condensed matter physics. We investigated the effect of indium substitution on the crystal stru…
Vertical temperature-boundary of the pseudogap under the superconducting dome of the Bi2Sr2CaCu2O8+d phase-diagram
B. Loret, S. Sakai, S. Benhabib +11
Combining electronic Raman scattering experiments with cellular dynamical mean field theory, we present evidence of the pseudogap in the superconducting state of various hole-doped…
Spectroscopic evidence for bulk-band inversion and three-dimensional massive Dirac fermions in ZrTe5
Zhi-Guo Chen, R. Y. Chen, R. D. Zhong +8
Three-dimensional topological insulators (3D TIs) represent novel states of quantum matters in which surface states are protected by time-reversal symmetry and an inversion occurs…