Spin-orbital magnetic response of relativistic fermions with band hybridization

  title={Spin-orbital magnetic response of relativistic fermions with band hybridization},
  author={Y. Araki and Daiki Suenaga and Kei Suzuki and S. Yasui},
  journal={arXiv: Mesoscale and Nanoscale Physics},
Spins of relativistic fermions are related to their orbital degrees of freedom. In order to quantify the relativistic effect in systems composed of both relativistic and nonrelativistic fermions, we focus on the spin-orbital (SO) crossed susceptibility, which becomes finite in the presence of spin-orbit coupling. The SO crossed susceptibility is defined as the response function of their spin polarization to the "orbital" magnetic field, namely the effect of magnetic field on the orbital motion… Expand

Figures from this paper

Delineating chiral separation effect in two-color dense QCD
We study the chiral separation effect (CSE) in two-color and two-flavor QCD (QC2D) to delineate quasiparticle pictures in dense matter from low to high temperatures. Both massless and massive quarksExpand
Kondo effect with Wilson fermions
Tsutomu Ishikawa ID , 2, 3, ∗ Katsumasa Nakayama ID , † and Kei Suzuki ID 5, ‡ Graduate University for Advanced Studies (SOKENDAI), Tsukuba 305-0801, Japan KEK Theory Center, Institute of ParticleExpand
Chiral separation effect catalyzed by heavy impurities
We investigate the influence of Kondo effect, namely, the nonperturbative effect induced by heavy impurities, on the chiral separation effect (CSE) in quark matter. We employ a simple effective modelExpand


Spin and orbital magnetic response on the surface of a topological insulator
Coupling of the spin and orbital degrees of freedom on the surface of a strong three-dimensional insulator, on the one hand, and textured magnetic configuration in an adjacent ferromagnetic film, onExpand
Berry curvature, orbital moment, and effective quantum theory of electrons in electromagnetic fields
Berry curvature and orbital moment of the Bloch state are two basic ingredients, in addition to the band energy, that must be included in the formulation of semiclassical dynamics of electrons inExpand
Experimental searches for the chiral magnetic effect in heavy-ion collisions
The chiral magnetic effect (CME) in quantum chromodynamics (QCD) refers to a charge separation (an electric current) of chirality imbalanced quarks generated along an external strong magnetic field.Expand
Topology and stability of the Kondo phase in quark matter
We investigate properties of the ground state of a light quark matter with heavy quark impurities. This system exhibits the "QCD Kondo effect" where the interaction strength between a light quarkExpand
Chiral Magnetic and Vortical Effects in High-Energy Nuclear Collisions --- A Status Report
The interplay of quantum anomalies with magnetic field and vorticity results in a variety of novel non-dissipative transport phenomena in systems with chiral fermions, including the quark-gluonExpand
Orbital magnetism in coupled-bands models
We develop a gauge-independent perturbation theory for the grand potential of itinerant electrons in two-dimensional tight-binding models in the presence of a perpendicular magnetic field. At firstExpand
Geometrical effects in orbital magnetic susceptibility
Within the wave-packet semiclassical approach, the Bloch electron energy is derived to second order in the magnetic field and classified into gauge-invariant terms with clear physical meaning,Expand
Magnetically induced QCD Kondo effect
The "QCD Kondo effect" stems from the color exchange interaction in QCD with non-Abelian property, and can be realized in a high-density quark matter containing heavy-quark impurities. We propose aExpand
Evidence for magnetic Weyl fermions in a correlated metal.
Experimental evidence is reported for magnetic Weyl fermions in Mn3Sn, a non-collinear antiferromagnet that exhibits a large anomalous Hall effect, even at room temperature, and lays the foundation for a new field of science and technology involving the magnetic Wey excitations of strongly correlated electron systems such as Mn3 Sn. Expand
Spin-orbit crossed susceptibility in topological Dirac semimetals.
We theoretically study the spin-orbit crossed susceptibility of topological Dirac semimetals. Because of strong spin-orbit coupling, the orbital magnetization is induced by Zeeman coupling. We findExpand