363 citations · 2k across the 22 of their papers we have counts for
22 papers
Nanoscale Conducting and Insulating Domains on YbB
Aaron Coe, Zhi-Huai Zhu, Yang He +4
YbB is a predicted topological insulator, with experimental evidence for conducting surface states of yet-unproven origin. However, its lack of a natural cleavage plane, and re…
A RIXS investigation of the crystal-field splitting of Sm in SmB
Andrea Amorese, Oliver Stockert, Kurt Kummer +7
The crystal-field (CF) splitting of the Hund's rule ground state of Sm in the strongly correlated topological insulator SmB has been determined with high res…
Imaging emergent heavy Dirac fermions of a topological Kondo insulator
Harris Pirie, Yu Liu, A. Soumyanarayanan +12
Kondo insulators are primary candidates in the search for strongly correlated topological quantum phases, which may host topological order, fractionalization, and non-Abelian stati…
Multi-Q mesoscale magnetism in CeAuSb
Guy G. Marcus, Dae-Jeong Kim, Jacob A. Tutmaher +6
We report the discovery of a field driven transition from a striped to woven Spin Density Wave (SDW) in the tetragonal heavy fermion compound CeAuSb. Polarized along , t…
Additional energy scale in SmB at low temperature
Lin Jiao, Sahana Rößler, D. J. Kim +4
Topological insulators give rise to exquisite electronic properties due to their spin-momentum locked Dirac-cone-like band structure. Recently, it has been suggested that the requi…
The Effects of Spin-Excitons on the Surface States of SmB6: A Photoemission Study
Arian Arab, A. X. Gray, S. Nemsak +7
We present the results of high-resolution valence-band photoemission spectroscopic study of SmB6 which shows evidence for a V-shaped density of states of surface origin within the…
Reduction of the low-temperature bulk gap in samarium hexaboride under high magnetic fields
S. Wolgast, Y. S. Eo, K. Sun +5
SmB exhibits a small (15-20 meV) bandgap at low temperatures due to hybridized and electrons, a tiny (3 meV) transport activation energy above 4 K, and surfac…
Topological surface states interacting with bulk excitations in the Kondo insulator SmB revealed via planar tunneling spectroscopy
Wan Kyu Park, Lunan Sun, Alexander Noddings +3
Samarium hexaboride (SmB), a well-known Kondo insulator in which the insulating bulk arises from strong electron correlations, has recently attracted great attention owing to i…
Surface and electronic structure of SmB through Scanning Tunneling Microscopy
S. Roessler, Lin Jiao, D. -J. Kim +6
SmB, a so called Kondo insulator, is recently discussed as a candidate material for a strong topological insulator. We present detailed atomically resolved topographic informat…
Pressure-induced quantum phase transitions in topological insulator YbB6
Yazhou Zhou, Dae-Jeong Kim, Priscila Ferrari Silveira Rosa +19
Topological insulators (TIs) containing 4f electrons have recently attracted intensive interests due to the possible interplay of their non-trivial topological properties and stron…
Fermi Surface Topology and Hotspots Distribution in Kondo Lattice System CeB6
Madhab Neupane, Nasser Alidoust, Guang Bian +13
We present high-resolution angle-resolved photoemission spectroscopy studies of trivalent CeB6 and divalent BaB6 rare-earth hexaborides. We find that the Fermi surface electronic s…
Hysteretic Magnetotransport in SmB6 at Low Magnetic Fields
Yun Suk Eo, Steven Wolgast, Teoman Ozturk +12
Utilizing Corbino disc structures, we have examined the magnetic field response of resistivity for the surface states of SmB6 on different crystalline surfaces at low temperatures.…
Magnetotransport Measurements of the Surface States of Samarium Hexaboride using Corbino Structures
Steven Wolgast, Yun Suk Eo, Teoman Ozturk +12
The recent conjecture of a topologically-protected surface state in SmB and the verification of robust surface conduction below 4 K have prompted a large effort to understand t…
Temperature Dependence of Linked Gap and Surface State Evolution in the Mixed Valent Topological Insulator SmB6
J. D. Denlinger, J. W. Allen, J. -S. Kang +6
Taken together and viewed holistically, recent theory, low temperature (T) transport, photoelectron spectroscopy and quantum oscillation experiments have built a very strong case t…
SmB6 Photoemission: Past and Present
Jonathan D. Denlinger, James W. Allen, Jeong-Soo Kang +4
Recent renewed interest in the mixed valent insulator SmB6 comes from topological theory predictions and surface transport measurements of possible in-gap surface states whose exis…
Hybridization gap and Fano resonance in SmB
S. Rößler, Tae-Hwan Jang, D. J. Kim +4
We present results of Scanning Tunneling Microscopy and Spectroscopy (STS) measurements on the "Kondo insulator" SmB. The vast majority of surface areas investigated was recons…
Imaging the Kondo Insulating Gap on SmB6
Michael M. Yee, Yang He, Anjan Soumyanarayanan +3
Topological insulators host spin-polarized surface states which robustly span the band gap and hold promise for novel applications. Recent theoretical predictions have suggested th…
Weak Antilocalization and Linear Magnetoresistance in The Surface State of SmB6
S. Thomas, D. J. Kim, S. B. Chung +3
Strongly correlated Kondo insulator SmB6 is known for its peculiar low temperature residual conduction, which has recently been demonstrated to arise from a robust metallic surface…
Topological surface state in the Kondo Insulator Samarium Hexaboride
D. J. Kim, J. Xia, Z. Fisk
Strongly correlated electron systems show many exotic properties such as unconventional superconductity, quantum criticality, and Kondo insulating behavior. In addition, the Kondo…
Quantum oscillations in Kondo Insulator SmB
G. Li, Z. Xiang, F. Yu +15
In Kondo insulator samarium hexaboride SmB, strong correlation and band hybridization lead to an insulating gap and a diverging resistance at low temperature. The resistance di…
Robust Surface Hall Effect and Nonlocal Transport in SmB6: Indication for an Ideal Topological Insulator
D. J. Kim, S. Thomas, T. Grant +3
A topological insulator (TI) is an unusual quantum state in which the insulating bulk is topologically distinct from vacuum, resulting in a unique metallic surface that is robust a…
Low-temperature surface conduction in the Kondo insulator SmB
Steven Wolgast, Cagliyan Kurdak, Kai Sun +3
We study the transport properties of the Kondo insulator SmB with a specialized configuration designed to distinguish bulk-dominated conduction from surface-dominated conductio…