Emergent mystery in the Kondo insulator samarium hexaboride

L Li, K Sun, C Kurdak, JW Allen - Nature Reviews Physics, 2020 - nature.com
Samarium hexaboride (SmB6) is an example of a Kondo insulator, in which strong electron
correlations cause a band gap to open. SmB6 hosts both a bulk insulating state and a …

Proximity-induced surface superconductivity in Dirac semimetal Cd3As2

C Huang, BT Zhou, H Zhang, B Yang, R Liu… - Nature …, 2019 - nature.com
Cd3As2 is a three-dimensional Dirac semimetal with separated Dirac points in momentum
space. In spite of extensive transport and spectroscopic studies on its exotic properties, the …

Magnetoelectrics in disordered topological insulator Josephson junctions

IV Bobkova, AM Bobkov, AA Zyuzin, M Alidoust - Physical Review B, 2016 - APS
We study theoretically the coupling of electric charge and spin polarization in an equilibrium
and nonequilibrium electric transport across a two-dimensional Josephson configuration …

Perfect Andreev reflection due to the Klein paradox in a topological superconducting state

S Lee, V Stanev, X Zhang, D Stasak, J Flowers… - Nature, 2019 - nature.com
In 1928, Dirac proposed a wave equation to describe relativistic electrons. Shortly
afterwards, Klein solved a simple potential step problem for the Dirac equation and …

Heavy fermion thin films: progress and prospects

S Chatterjee - Electronic Structure, 2021 - iopscience.iop.org
Heavy fermion compounds are a remarkable class of inter-metallic systems, where the
presence of several competing interactions leads to the emergence of a plethora of exotic …

Josephson current mediated by ballistic topological states in Bi2Te2.3Se0.7 single nanocrystals

VS Stolyarov, DS Yakovlev, SN Kozlov… - Communications …, 2020 - nature.com
Superconducting proximity devices using low-dimensional semiconducting elements enable
a ballistic regime in the proximity transport. The use of topological insulators in such devices …

Comprehensive surface magnetotransport study of

YS Eo, S Wolgast, A Rakoski, D Mihaliov, BY Kang… - Physical Review B, 2020 - APS
After the theoretical prediction that SmB 6 is a topological Kondo insulator, there has been
an explosion of studies on the SmB 6 surface. However, there is not yet an agreement on …

Bulk and surface properties of SmB6

PFS Rosa, Z Fisk - Rare-Earth Borides, 2021 - taylorfrancis.com
Samarium hexaboride crystallizes in a simple cubic structure (space group# 221, Pm3̄m),
but its properties are far from being straightforward. Initially classified as a Kondo insulator …

Nontrivial Nature and Penetration Depth of Topological Surface States in Thin Films

T Liu, Y Li, L Gu, J Ding, H Chang, PAP Janantha… - Physical review …, 2018 - APS
The nontrivial feature and penetration depth of the topological surface states (TSS) in SmB 6
were studied via spin pumping. The experiments used SmB 6 thin films grown on the bulk …

Systematic manipulation of the surface conductivity of

MVA Crivillero, M König, JC Souza, PG Pagliuso… - Physical Review …, 2021 - APS
We show that the resistivity plateau of SmB 6 at low temperature, typically taken as a
hallmark of its conducting surface state, can systematically be influenced by different surface …