SmB6 is a strongly correlated material that has been attributed as topological insulator and Kondo insulator. Recent studies have found the surface states low temperature insulating character to be profoundly robust against magnetic non-magnetic impurities. Here, we use angle resolved photoemission spectroscopy chart evolution of topologically-linked electronic structure features versus doping ...

We characterize the optical coherence and energy-level properties of 795 nm $^3$H$_6$ to $^3$H$_4$ transition Tm$^{3+}$ in a Ti$^{4+}$:LiNbO$_{3}$ waveguide at temperatures as low 0.65 K. Coherence are measured with varied temperature, magnetic field, excitation power wavelength, measurement time-scale. also investigate nuclear spin-induced hyperfine structure population dynamics varying field ...

We characterize the optical coherence and energy-level properties of 795 nm $^3$H$_6$ to $^3$H$_4$ transition Tm$^{3+}$ in a Ti$^{4+}$:LiNbO$_{3}$ waveguide at temperatures as low 0.65 K. Coherence are measured with varied temperature, magnetic field, excitation power wavelength, measurement time-scale. also investigate nuclear spin-induced hyperfine structure population dynamics varying field ...

We investigate the proximity spin-orbit and exchange couplings in ABA ABC trilayer graphene encapsulated within monolayers of semiconducting transition-metal dichalcogenides ferromagnetic semiconductor Cr$_2$Ge$_2$Te$_6$. Employing first-principles calculations we obtain electronic structures multilayer stacks extract relevant proximity-induced orbital spin interaction parameters by fitting low...

Using Landau-Ginsburg-Devonshire approach and available experimental results we reconstruct the thermodynamic potential of layered ferroelectric CuInP$_2$S$_6$ (CIPS), which is expected to be applicable a wide range temperatures applied pressures. The analysis temperature dependences dielectric permittivity lattice constants for different pressures unexpectedly reveals critically important role...

Abstract Hjelmslev–Moufang (HM) planes are point-line geometries related to the exceptional algebraic groups of type $\mathsf{E}_6$. More generally, spherical Tits buildings—Lie incidence geometries—are prominent examples parapolar spaces: axiomatically defined consisting points, lines and symplecta (structures isomorphic polar spaces). In this paper we classify spaces with a similar behaviour ...

Abstract The equilibrium equations and the traction boundary conditions are evaluated on basis of condition stationarity Lagrangian for coupled strain gradient elasticity. quadratic form energy can be written as a function second displacement contains fourth-, fifth- sixth-order stiffness tensor $${\mathbb {C}}_4$$ C</...

We show how the material used in direct detection experiments of Dark Matter (DM), presence a signal it, can afford one with possibility extracting nature underlying candidate. do so for case $U(1)'$ Supersymmetric Standard Model (USSM) E$_6$ origin, by exploiting benchmark points over its parameter space that yield either Singlino- or Higgsino-like neutralino as DM candidate, latter being defi...

Density functional calculations are carried out to study the symmetry and substitution-driven electronic phase transition in BaPb$_{1-x}$Sn$_x$O$_3$. Two end members BaSnO$_3$ BaPbO$_3$, found be insulating metallic, respectively. In latter case, metallicity arises with presence of an electron pocket, formed by Pb-s dominated conduction band edge, a hole pocket O-p valence bands. While carriers...

Resistivities of heavy-fermion insulators typically saturate below a characteristic temperature $T^*$. For some, metallic surface states, potentially from non-trivial bulk topology, are likely source residual conduction. Here, we establish an alternative mechanism: At low temperature, in addition to the charge gap, scattering rate turns into relevant energy scale, invalidating semiclassical Bol...