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Optical Signatures of Dirac Nodal-lines in NbAs
Yinming Shao, Zhiyuan Sun, Ying Wang +10
Using polarized optical and magneto-optical spectroscopy, we have demonstrated universal aspects of electrodynamics associated with Dirac nodal-lines. We investigated anisotropic e…
Observation of transition from semiconducting to metallic ground state in high-quality single crystalline FeSi
Y. Fang, S. Ran, W. Xie +1
We report anomalous physical properties of single-crystalline FeSi over a wide temperature range 1.8-400 K. X-ray diffraction, specific heat, and magnetization measurements indicat…
Spectroscopic determination of the atomic f-electron symmetry underlying hidden order in URuSi
L. Andrew Wray, Jonathan Denlinger, Shih-Wen Huang +5
The low temperature hidden order state of URuSi has long been a subject of intense speculation, and is thought to represent an as yet undetermined many-body quantum state n…
Tuning the band gap of PbCrO4 through high-pressure: Evidence of wide-to-narrow semiconductor transitions
D. Errandonea, E. Bandiello, A. Segura +4
The electronic transport properties and optical properties of lead(II) chromate (PbCrO4) have been studied at high pressure by means of resistivity, Hall-effect, and optical-absorp…
Non-Fermi liquid behavior with and without quantum criticality in Ce(1-x)Yb(x)CoIn(5)
T. Hu, Y. P. Singh, L. Shu +4
One of the greatest challenges to Landau's Fermi liquid theory - the standard theory of metals - is presented by complex materials with strong electronic correlations. In these mat…
High pressure transport properties of the topological insulator Bi2Se3
J. J. Hamlin, J. R. Jeffries, N. P. Butch +6
We report x-ray diffraction, electrical resistivity, and magnetoresistance measurements on Bi2Se3 under high pressure and low temperature conditions. Pressure induces profound chan…
Local Distortion Induced Metal-to-Insulator Phase Transition in PrRuP
D. Cao, R. H. Heffner, F. Bridges +4
Extended X-ray Absorption Fine Structure (EXAFS) experiments have been carried out on PrRuP and PrOsP to study the metal-to-insulator (MI) phase transition in…
Electronic Structure and Charge Dynamics of Huesler Alloy Fe2TiSn Probed by Infrared and Optical Spectroscopy
S. V. Dordevic, D. N. Basov, A. Slebarski +2
We report on the electrodynamics of a Heusler alloy Fe2TiSn probed over four decades in energy: from the far infrared to the ultraviolet. Our results do not support the suggestion…