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Theoretical model for Rashba spin-orbit interaction in d electrons
(Physical Review B: Condensed Matter and Materials Physics, 2014)
We show that the Rashba spin-orbit interaction in d electron solids, which originates from the broken inversion symmetry at surfaces or interfaces, is strongly dependent on the orbital characters of the bands involved. ...
Nonlinear localized flat-band modes with spin-orbit coupling
(Physical Review B: Condensed Matter and Materials Physics, 2016)
We report the coexistence and properties of stable compact localized states (CLSs) and discrete solitons (DSs) for nonlinear spinor waves on a flat-band network with spin-orbit coupling (SOC). The system can be implemented ...
Critical behavior of the van derWaals bonded ferromagnet Fe3-xGeTe2
(Physical Review B: Condensed Matter and Materials Physics, 2017)
The critical properties of the single-crystalline van der Waals bonded ferromagnet Fe3-xGeTe2 were investigated by bulk dc magnetization around the paramagnetic to ferromagnetic (FM) phase transition. The Fe3-xGeTe2 single ...
Magnetic properties of diluted magnetic (Gd,Lu)(2)O-3
(Physical Review B: Condensed Matter and Materials Physics, 1998)
The magnetic susceptibility of the diluted magnetic Lu2-xGdxO3 (x=0.06, 0.10, 0.22, 0.40, 1.00, 1.40; 1.80) was measured in the temperature range 1.7-295 K. The inverse susceptibility changes slope to a smaller value below ...
Modulation instability in two-dimensional nonlinear Schrodinger lattice models with dispersion and long-range interactions
(Physical Review B: Condensed Matter and Materials Physics, 2003)
The problem of modulation instability of continuous wave and array soliton solutions within the framework of a two-dimensional continuum-discrete nonlinear Schrodinger lattice model, which accounts for dispersion and ...
Electronic structure of Ba3CuSb2O9: A candidate quantum spin liquid compound
(Physical Review B: Condensed Matter and Materials Physics, 2014)
Using density-functional methods, we study the electronic structure of Ba3CuSb2O9, a candidate material for the quantum spin liquid behavior. We study both the triangular lattice as well as the recently proposed hexagonal ...
Ab initio study of the electron energy loss function in a graphene-sapphire-graphene composite system
(Physical Review B: Condensed Matter and Materials Physics, 2017)
The propagator of a dynamically screened Coulomb interaction W in a sandwichlike structure consisting of two graphene layers separated by a slab of Al2O3 (or vacuum) is derived from single-layer graphene response functions ...
Critical current density and vortex pinning in tetragonal FeS1-xSex (x=0,0.06)
(Physical Review B: Condensed Matter and Materials Physics, 2016)
We report critical current density (J(c)) in tetragonal FeS single crystals, similar to iron-based superconductors with much higher superconducting critical temperatures (T-c). The Jc is enhanced three times by 6% Se doping. ...
Density functional study of the insulating ground states in CaFeO3 and La1/3Sr2/3FeO3 compounds
(Physical Review B: Condensed Matter and Materials Physics, 2005)
The origin of the insulating ground states and the charge disproportionation in the two Fe-based perovskite oxides, viz., CaFeO3 and La1/3Sr2/3FeO3, are examined from ab initio electronic structure calculations based on ...
Observation of Dirac-like band dispersion in LaAgSb2
(Physical Review B: Condensed Matter and Materials Physics, 2016)
We present a combined angle-resolved photoemission spectroscopy (ARPES) and first-principles calculations study of the electronic structure of LaAgSb2 in the entire first Brillouin zone. We observe a Dirac-cone-like structure ...