Electrodynamics of correlated electron materials

DN Basov, RD Averitt, D Van Der Marel, M Dressel… - Reviews of Modern …, 2011 - APS
Studies of the electromagnetic response of various classes of correlated electron materials
including transition-metal oxides, organic and molecular conductors, intermetallic …

Topological kondo insulators

M Dzero, J Xia, V Galitski… - Annual Review of …, 2016 - annualreviews.org
This article reviews recent theoretical and experimental work on a new class of topological
material—topological Kondo insulators, which develop through the interplay of strong …

Hybridization, Inter-Ion Correlation, and Surface States in the Kondo Insulator

X Zhang, NP Butch, P Syers, S Ziemak, RL Greene… - Physical Review X, 2013 - APS
As an exemplary Kondo insulator, SmB 6 has been studied for several decades. However,
direct evidence for the development of the Kondo coherent state and for the evolution of the …

Tuning Bulk and Surface Conduction in the Proposed Topological Kondo Insulator

P Syers, D Kim, MS Fuhrer, J Paglione - Physical review letters, 2015 - APS
Bulk and surface state contributions to the electrical resistance of single-crystal samples of
the topological Kondo-insulator compound SmB 6 are investigated as a function of crystal …

Samarium hexaboride is a trivial surface conductor

P Hlawenka, K Siemensmeyer, E Weschke… - Nature …, 2018 - nature.com
SmB6 is predicted to be the first member of the intersection of topological insulators and
Kondo insulators, strongly correlated materials in which the Fermi level lies in the gap of a …

Polarity-Driven Surface Metallicity in

ZH Zhu, A Nicolaou, G Levy, NP Butch, P Syers… - Physical review …, 2013 - APS
By a combined angle-resolved photoemission spectroscopy and density functional theory
study, we discover that the surface metallicity is polarity driven in SmB 6. Two surface states …

Transport gap in SmB6 protected against disorder

YS Eo, A Rakoski, J Lucien… - Proceedings of the …, 2019 - National Acad Sciences
The inverted resistance method was used in this study to extend the bulk resistivity of S m B
6 to a regime where the surface conduction overwhelms the bulk. Remarkably, regardless of …

High-field suppression of in-gap states in the Kondo insulator

T Caldwell, AP Reyes, WG Moulton, PL Kuhns… - Physical Review B …, 2007 - APS
The controversial ground-state properties of the Kondo insulator Sm B 6 have been
investigated using B 11 NMR in very high magnetic fields up to 37 T. We find evidence that …

Electron spin resonance in strongly correlated metals

SV Demishev - Applied Magnetic Resonance, 2020 - Springer
Modern technique of electron spin resonance (ESR) measurements and data analysis in
strongly correlated metals, which allows finding the full set of spectroscopic parameters …

Properties of the donor impurity band in mixed valence insulators

B Skinner - Physical Review Materials, 2019 - APS
In traditional semiconductors with large effective Bohr radius, an electron donor creates a
hydrogen-like bound state just below the conduction band edge. The properties of the …