Spinon excitations in the quasi-one-dimensional S=12 chain compound Cs4CuSb2Cl12 - Publication - Bridge of Knowledge

Search

Spinon excitations in the quasi-one-dimensional S=12 chain compound Cs4CuSb2Cl12

Abstract

The spin−1/2 Heisenberg antiferromagnetic chain is ideal for realizing one of the simplest gapless quantum spin liquids (QSLs), supporting a many-body ground state whose elementary excitations are fractional fermionic excitations called spinons. Here we report the discovery of such a one-dimensional (1D) QSL in Cs4CuSb2Cl12. Compared to previously reported S=1/2 1D chains, this material possesses a wider temperature range over which the QSL state is stabilized. We identify spinon excitations extending at T>0.8K, with a large T-linear contribution to the specific heat, γ=31.5(2)mJmol−1K−2, which contribute itinerantly to thermal transport up to temperatures as high as T=35K. At T=0.7K, we find a second-order phase transition that is unchanged by a μ0H=5T magnetic field. Cs4CuSb2Cl12 reveals new phenomenology deep in the 1D QSL regime, supporting a gapped QSL phase over a wide temperature range compared to many other experimental realizations.

Citations

  • 1 4

    CrossRef

  • 0

    Web of Science

  • 1 2

    Scopus

Authors (7)

Cite as

Full text

download paper
downloaded 82 times
Publication version
Accepted or Published Version
License
Copyright (2020 American Physical Society)

Keywords

Details

Category:
Articles
Type:
artykuły w czasopismach
Published in:
PHYSICAL REVIEW B no. 101,
ISSN: 2469-9950
Language:
English
Publication year:
2020
Bibliographic description:
Tran T., Pocs C., Zhang Y., Winiarski M., Sun J., Lee M., Mcqueen T.: Spinon excitations in the quasi-one-dimensional S=12 chain compound Cs4CuSb2Cl12// PHYSICAL REVIEW B -Vol. 101, (2020), s.23507-
DOI:
Digital Object Identifier (open in new tab) 10.1103/physrevb.101.235107
Verified by:
Gdańsk University of Technology

seen 76 times

Recommended for you

Meta Tags