Chemical bonding dictates drastic critical temperature difference in two seemingly identical superconductors
Though YB6 and LaB6 share the same crystal structure, atomic valence electron
configuration, and phonon modes, they exhibit drastically different phonon-mediated …
configuration, and phonon modes, they exhibit drastically different phonon-mediated …
Crystal Field Ground State of the Strongly Correlated Topological Insulator
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 …
Surface-dominated conduction up to 240 K in the Kondo insulator SmB6 under strain
SmB6 is a strongly correlated mixed-valence Kondo insulator, with a newly discovered
surface state,, proposed to be of non-trivial topological origin,. However, the surface state …
surface state,, proposed to be of non-trivial topological origin,. However, the surface state …
Mixed-valence state in the dilute-impurity regime of La-substituted SmB6
Homogeneous mixed-valence (MV) behaviour is one of the most intriguing phenomena of f-
electron systems. Despite extensive efforts, a fundamental aspect which remains unsettled is …
electron systems. Despite extensive efforts, a fundamental aspect which remains unsettled is …
Quantum phase transition and destruction of Kondo effect in pressurized SmB6
SmB 6 has been a well-known Kondo insulator for decades, but recently attracts extensive
new attention as a candidate topological system. Studying SmB 6 under pressure provides …
new attention as a candidate topological system. Studying SmB 6 under pressure provides …
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 …
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 …
but its properties are far from being straightforward. Initially classified as a Kondo insulator …
Magnetic states in a three-dimensional topological Kondo insulator
We theoretically study the magnetic phase diagram of a three-dimensional topological
Kondo insulator by means of real-space dynamical mean-field theory. We find that …
Kondo insulator by means of real-space dynamical mean-field theory. We find that …
Anomalous antiferromagnetic topological phase in pressurized
KW Chang, PJ Chen - Physical Review B, 2018 - APS
Antiferromagnetic materials, whose time-reversal symmetry is broken, can be classified into
the Z 2 topology if they respect some specific symmetry. Since the theoretical proposal …
the Z 2 topology if they respect some specific symmetry. Since the theoretical proposal …
Pressure-driven valence increase and metallization in the Kondo insulator
We report the results of high-pressure x-ray diffraction, x-ray absorption, and electrical
transport measurements of the Kondo insulator (KI) Ce 3 Bi 4 Pt 3 up to 42 GPa, the highest …
transport measurements of the Kondo insulator (KI) Ce 3 Bi 4 Pt 3 up to 42 GPa, the highest …