Emergent mystery in the Kondo insulator samarium hexaboride
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 …
correlations cause a band gap to open. SmB6 hosts both a bulk insulating state and a …
Quantum oscillations of electrical resistivity in an insulator
In metals, orbital motions of conduction electrons on the Fermi surface are quantized in
magnetic fields, which is manifested by quantum oscillations in electrical resistivity. This …
magnetic fields, which is manifested by quantum oscillations in electrical resistivity. This …
Quantum Oscillations in Flux-Grown with Embedded Aluminum
Sm B 6 is a candidate topological Kondo insulator that displays surface conduction at low
temperatures. Here, we perform torque magnetization measurements as a means to detect …
temperatures. Here, we perform torque magnetization measurements as a means to detect …
Transport gap in SmB6 protected against disorder
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 …
6 to a regime where the surface conduction overwhelms the bulk. Remarkably, regardless of …
Crystal Field Ground State of the Strongly Correlated Topological Insulator
M Sundermann, H Yavaş, K Chen, DJ Kim, Z Fisk… - Physical review …, 2018 - APS
We investigated the crystal-electric field ground state of the 4 f manifold in the strongly
correlated topological insulator SmB 6 using core-level nonresonant inelastic x-ray …
correlated topological insulator SmB 6 using core-level nonresonant inelastic x-ray …
Pressure-Resistant Intermediate Valence in the Kondo Insulator
Resonant x-ray emission spectroscopy was used to determine the pressure dependence of
the f-electron occupancy in the Kondo insulator SmB 6. Applied pressure reduces the f …
the f-electron occupancy in the Kondo insulator SmB 6. Applied pressure reduces the f …
Bulk Rotational Symmetry Breaking in Kondo Insulator
The Kondo insulator samarium hexaboride (SmB 6) has been intensely studied in recent
years as a potential candidate of a strongly correlated topological insulator. One of the most …
years as a potential candidate of a strongly correlated topological insulator. One of the most …
Bulk and surface electronic properties of : A hard x-ray photoelectron spectroscopy study
We have carried out bulk-sensitive hard x-ray photoelectron spectroscopy measurements on
in situ cleaved and ex situ polished SmB 6 single crystals. Using the multiplet structure in the …
in situ cleaved and ex situ polished SmB 6 single crystals. Using the multiplet structure in the …
Observation of the Superconducting Proximity Effect in the Surface State of Thin Films
The proximity effect at the interface between a topological insulator and a superconductor is
predicted to give rise to chiral topological superconductivity and Majorana fermion …
predicted to give rise to chiral topological superconductivity and Majorana fermion …
Highly Asymmetric Nodal Semimetal in Bulk
N Harrison - Physical Review Letters, 2018 - APS
We show that novel low temperature properties of bulk SmB 6, including the sudden growth
of the de Haas–van Alphen (dHvA) amplitude (and heat capacity) at millikelvin temperatures …
of the de Haas–van Alphen (dHvA) amplitude (and heat capacity) at millikelvin temperatures …