Published June 2021 | Version v1
Journal article Metadata-only

Possible spin-density wave on Fermi arc of edge state in single-component molecular conductors [Pt(dmdt)2] and [Ni(dmdt)2]

Creators

  • 1. Nagoya University, Department of Physics, Nagoya, Aichi (Japan)
  • 2. Nihon University, College of Humanities and Sciences, Department of Chemistry, Tokyo (Japan)

Description

Motivated by the highly one-dimensional edge state due to a Dirac nodal line the system in single-component molecular conductor [Pt(dmdt)2], we investigate the magnetic properties of both [Pt(dmdt)2] and [Ni(dmdt)2], which are related materials by element substitution, by real-space-dependent random-phase approximation (RPA) in three-orbital Hubbard models with spin-orbit coupling, where these models are constructed using first-principles calculations. We calculate longitudinal and transverse spin susceptibilities by three-dimensional real-space-dependent RPA. We find that the helical spin-density wave (SDW) with incommensurate nesting of the Fermi arcs is induced at the edge by the Coulomb repulsion. We also find that the magnetic structure of the helical SDW can be changed by extremely small carrier doping, which is controllable in molecular conductors. (author)

Availability note (English)

Available from DOI: https://doi.org/10.7566/JPSJ.90.064710

Additional details

Identifiers

DOI
10.7566/JPSJ.90.064710;

Publishing Information

Journal Title
Journal of the Physical Society of Japan (Online)
Journal Volume
90
Journal Issue
6
Journal Page Range
p. 064710.1-064710.13
ISSN
1347-4073

INIS

Country of Publication
Japan
Country of Input or Organization
Japan
INIS RN
53061290
Subject category
S75: CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY;
Descriptors DEI
BEDT-TTF; BRILLOUIN ZONES; COULOMB FIELD; D WAVES; ELECTRIC CONDUCTORS; GRAPHENE; KONDO EFFECT; L-S COUPLING; MAGNETIC SUSCEPTIBILITY; MOLECULAR ORBITAL METHOD; PAULI SPIN OPERATORS; PERFORMANCE; POTENTIAL ENERGY; RANDOM PHASE APPROXIMATION; SPIN WAVES
Descriptors DEC
ANGULAR MOMENTUM OPERATORS; APPROXIMATIONS; CALCULATION METHODS; CARBON; COUPLING; ELECTRIC FIELDS; ELEMENTS; ENERGY; HETEROCYCLIC COMPOUNDS; INTERMEDIATE COUPLING; MAGNETIC PROPERTIES; MATHEMATICAL OPERATORS; NONMETALS; ORGANIC COMPOUNDS; ORGANIC SULFUR COMPOUNDS; ORGANIC SUPERCONDUCTORS; PARTIAL WAVES; PHYSICAL PROPERTIES; QUANTUM OPERATORS; SUPERCONDUCTORS; ZONES

Optional Information

Notes
77 refs., 21 figs., 1 tab.