Published October 2021 | Version v1
Journal article Metadata-only

Unexpected quantum phase transition in a massless Dirac fermion system

Creators

  • 1. Toho University, Faculty of Science, Funabashi, Chiba (Japan)
  • 2. Kyoto University, Graduate School of Human and Environmental Studies, Kyoto (Japan)

Description

This article reviews our recent experimental and theoretical verification of quantum phase transition in a Dirac fermion system in organic conductor, α-(BEDT-TTF)2I3. Unexpectedly, the Dirac fermions do not create any mass gap at the quantum critical point even in the strong coupling regime. (author)

Additional details

Additional titles

Original title (Japanese)
"質量のない"電子の不思議な量子相転移

Publishing Information

Journal Title
Kotai Butsuri
Journal Volume
56
Journal Issue
10
Series
雑誌名:固体物理
Journal Page Range
p. 533-544
ISSN
0454-4544

INIS

Country of Publication
Japan
Country of Input or Organization
Japan
INIS RN
53079633
Subject category
S75: CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY;
Descriptors DEI
BEDT-TTF; CHIRAL SYMMETRY; CRYSTAL STRUCTURE; DIRAC SPINORS; ELECTRON CORRELATION; ELECTRONIC STRUCTURE; FERMI LEVEL; L-S COUPLING; MAGNETIC FIELDS; MAGNETIC FLUX; MAGNETORESISTANCE; PHASE TRANSFORMATIONS; PRESSURE DEPENDENCE; SPACE GROUPS; SYMMETRY BREAKING
Descriptors DEC
CORRELATIONS; COUPLING; DIFFERENTIAL EQUATIONS; DIRAC EQUATION; ELECTRIC CONDUCTIVITY; ELECTRICAL PROPERTIES; ENERGY LEVELS; EQUATIONS; FIELD EQUATIONS; HETEROCYCLIC COMPOUNDS; INTERMEDIATE COUPLING; ORGANIC COMPOUNDS; ORGANIC SULFUR COMPOUNDS; ORGANIC SUPERCONDUCTORS; PARTIAL DIFFERENTIAL EQUATIONS; PHYSICAL PROPERTIES; SPINORS; SUPERCONDUCTORS; SYMMETRY; SYMMETRY GROUPS; WAVE EQUATIONS

Optional Information

Notes
40 refs., 9 figs.