BROWSE

Related Researcher

Author's Photo

Jin, Hosub
Quantum Materials Design Lab
Research Interests
  • Spin-orbit coupling, electron-correlation, topological quantum phases

ITEM VIEW & DOWNLOAD

Spin-orbital entangled molecular j(eff) states in lacunar spinel compounds

Cited 1 times inthomson ciCited 0 times inthomson ci
Title
Spin-orbital entangled molecular j(eff) states in lacunar spinel compounds
Author
Kim, Heung-SikIm, JinoHan, Myung JoonJin, Hosub
Keywords
MOTT INSULATOR; ELECTRONIC-PROPERTIES; ORGANIC SALT; GATA4SE8; LIQUID; TRANSITION; GANB4S8; GAV4S8; OXIDE
Issue Date
2014-06
Publisher
NATURE PUBLISHING GROUP
Citation
NATURE COMMUNICATIONS, v.5, no., pp.3988 -
Abstract
The entanglement of the spin and orbital degrees of freedom through the spin-orbit coupling has been actively studied in condensed matter physics. In several iridium oxide systems, the spin-orbital entangled state, identified by the effective angular momentum j(eff), can host novel quantum phases. Here we show that a series of lacunar spinel compounds, GaM4X8 (M - Nb, Mo, Ta and W and X = S, Se and Te), gives rise to a molecular j(eff) state as a new spin-orbital composite on which the low-energy effective Hamiltonian is based. A wide range of electron correlations is accessible by tuning the bandwidth under external and/or chemical pressure, enabling us to investigate the cooperation between spin-orbit coupling and electron correlations. As illustrative examples, a two-dimensional topological insulating phase and an anisotropic spin Hamiltonian are investigated in the weak and strong coupling regimes, respectively. Our finding can provide an ideal platform for exploring j(eff) physics and the resulting emergent phenomena.
URI
Go to Link
DOI
10.1038/ncomms4988
ISSN
2041-1723
Appears in Collections:
PHY_Journal Papers
Files in This Item:
Spin-orbital entangled molecular j(eff) states in lacunar spinel compounds.pdf Download

find_unist can give you direct access to the published full text of this article. (UNISTARs only)

Show full item record

qrcode

  • mendeley

    citeulike

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

MENU