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Electronic structure of the ingredient planes of cuprate superconductor Bi2Sr2CuO6+δ: a comparison study with Bi2Sr2CaCu2O8+δ
Yan-Feng Lv, Wen-Lin Wang, Hao Ding +13
By means of low-temperature scanning tunneling microscopy, we report on the electronic structures of BiO and SrO planes of Bi2Sr2CuO6+δ (Bi-2201) superconductor prepared by argon-i…
Thermal evolution of antiferromagnetic correlations and tetrahedral bond angles in superconducting FeTeSe
Zhijun Xu, J. A. Schneeloch, Jinsheng Wen +9
It has recently been demonstrated that dynamical magnetic correlations measured by neutron scattering in iron chalcogenides can be described with models of short-range correlations…
Kondo-like zero-bias conductance anomaly in a three-dimensional topological insulator nanowire
Sungjae Cho, Ruidan Zhong, John Schneeloch +2
Zero bias anomalies in topological nanowires have recently captured significant attention, as they are possible signatures of Majorana modes. Yet there are many other possible orig…
Phonon coupling to dynamic short-range polar order in a relaxor ferroelectric near the morphotropic phase boundary
John A. Schneeloch, Zhijun Xu, B. Winn +4
We report neutron inelastic scattering experiments on single crystal PbMgNbO doped with 32\% PbTiO, a relaxor ferroelectric that lies close to the morph…
Mapping the Electronic Structure of Each Ingredient Oxide Layer of High- Cuprate Superconductor Bi2Sr2CaCu2O8+δ
Yan-Feng Lv, Wen-Lin Wang, Jun-Ping Peng +11
Understanding the mechanism of high transition temperature (Tc) superconductivity in cuprates has been hindered by the apparent complexity of their multilayered crystal structure.…
Magneto-infrared spectroscopy of Landau levels and Zeeman splitting of three-dimensional massless Dirac Fermions in ZrTe
R. Y. Chen, Z. G. Chen, X. -Y. Song +4
We present a magneto-infrared spectroscopy study on a newly identified three-dimensional (3D) Dirac semimetal ZrTe. We observe clear transitions between Landau levels and their…
Three energy scales in the superconducting state of hole-doped cuprates detected by electronic Raman scattering
S. Benhabib, Y. Gallais, M. Cazayous +7
We explored by electronic Raman scattering the superconducting state of Bi-2212 single crystal by performing a fine tuned doping study. We found three distinct energy scales in A1g…
Fully gapped superconductivity in In-doped topological crystalline insulator PbSnTe
Guan Du, Zengyi Du, Delong Fang +5
Superconductors derived from topological insulators and topological crystalline insulators by doping have long been considered to be candidates as topological superconductors. Pb$_…
Energy dissipation in the time domain governed by bosons in a correlated material
J. D. Rameau, S. Freutel, M. A. Sentef +13
In complex materials various interactions play important roles in determining the material properties. Angle Resolved Photoelectron Spectroscopy (ARPES) has been used to study thes…
Surface collective modes in the topological insulators BiSe and BiSbTeSe
A. Kogar, S. Vig, A. Thaler +13
We used low-energy, momentum-resolved inelastic electron scattering to study surface collective modes of the three-dimensional topological insulators BiSe and BiSb$…
Optical spectroscopy study of three dimensional Dirac semimetal ZrTe
R. Y. Chen, S. J. Zhang, J. A. Schneeloch +4
Three dimensional (3D) topological Dirac materials are under intensive study recently. The layered compound ZrTe has been suggested to be one of them by transport and ARPES exp…
Dependence of superconductivity in CuxBi2Se3 on quenching conditions
J. A. Schneeloch, R. D. Zhong, Z. J. Xu +2
Topological superconductivity, implying gapless protected surface states, has recently been proposed to exist in the compound CuxBi2Se3. Unfortunately, low diamagnetic shielding fr…
Surface-state-dominated transport in crystals of the topological crystalline insulator In-doped PbSnTe
Ruidan Zhong, Xugang He, John A. Schneeloch +8
Three-dimensional topological insulators and topological crystalline insulators represent new quantum states of matter, which are predicted to have insulating bulk states and spin-…