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Observation of the chiral magnetic effect in ZrTe5
Qiang Li, Dmitri E. Kharzeev, Cheng Zhang +7
The chiral magnetic effect is the generation of electric current induced by chirality imbalance in the presence of magnetic field. It is a macroscopic manifestation of the quantum…
Imaging Dirac-Mass Disorder from Magnetic Dopant-Atoms in the Ferromagnetic Topological Insulator Cr(BiSb)Te
Inhee Lee, Chung Koo Kim, Jinho Lee +8
To achieve and utilize the most exotic electronic phenomena predicted for the surface states of 3D topological insulators (TI),it is necessary to open a "Dirac-mass gap" in their s…
Low-energy phonons and superconductivity in SnInTe
Zhijun Xu, J. A. Schneeloch, Ruidan Zhong +6
We present neutron scattering measurements on low-energy phonons from a superconducting (~K) SnInTe single crystal sample. The longitudinal acoustic ph…
Neutron inelastic scattering measurements of low energy phonons in the multiferroic BiFeO3
John A. Schneeloch, Zhijun Xu Jinsheng Wen, P. M. Gehring +11
We present neutron inelastic scattering measurements of the low-energy phonons in single crystal BiFeO3. The dispersions of the three acoustic phonon modes (LA along [100], TA1 alo…
Aharonov-Bohm Oscillations in a Quasi-Ballistic 3D Topological Insulator Nanowire
S. Cho, B. Dellabetta, R. D. Zhong +5
In three-dimensional topological insulators (3D TI) nanowires, transport occurs via gapless surface states where the spin is fixed perpendicular to the momentum[1-6]. Carriers enci…
Bulk Signatures of Pressure-Induced Band Inversion and Topological Phase Transitions in PbSnSe
Xiaoxiang Xi, Xu-Gang He, Fen Guan +10
The characteristics of topological insulators are manifested in both their surface and bulk properties, but the latter remain to be explored. Here we report bulk signatures of pres…
Spectral weight transfer in strongly correlated FeTe
Y. M. Dai, A. Akrap, J. Schneeloch +5
The temperature dependence of the in-plane optical conductivity has been determined for FeTe above and below the magnetic and structural transition at K. Th…
Superconductivity induced by In substitution into the topological crystalline insulator Pb(0.5)Sn(0.5)Te
R. D. Zhong, J. A. Schneeloch, T. S. Liu +3
Indium substitution turns the topological crystalline insulator (TCI) PbSnTe into a possible topological superconductor. To investigate the effect of the indium con…
Low energy magnetic excitations from the Fe(Ni/Cu)TeSe system
Zhijun Xu, Jinsheng Wen, J. Schneeloch +5
We report neutron scattering measurements on low energy (~meV) magnetic excitations from a series of Fe(Ni/Cu)TeSe samples which belong…
Collapse of the Normal State Pseudogap at a Lifshitz Transition in BiSrCaCuO Cuprate Superconductor
S. Benhabib, A. Sacuto, M. Civelli +9
We report a fine tuned doping study of strongly overdoped BiSrCaCuO single crystals using electronic Raman scattering. Combined with theoretical calculations, w…
Power Law Like Correlation between Condensation Energy and Superconducting Transition Temperatures in Iron Pnictide/Chalcogenide Superconductors: Beyond the BCS Understanding
Jie Xing, Sheng Li, Bin Zeng +7
Superconducting condensation energy has been determined by integrating the electronic entropy in various iron pnictide/chalcogenide superconducting systems. It is found…