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High-Field ESR Measurements of S=1/2 Kagome Lattice Antiferromagnet BaCu3V2O8(OH)2

Authors :
Susumu Okubo
Takahiro Sakurai
Yoshihiko Okamoto
Hitoshi Ohta
Weimin Zhang
Zenji Hiroi
Hiroyuki Yoshida
Masashi Fujisawa
Source :
Journal of the Physical Society of Japan. 79:023708
Publication Year :
2010
Publisher :
Physical Society of Japan, 2010.

Abstract

High-field electron spin resonance (ESR) measurements have been performed on vesignieite BaCu$_3$V$_2$O$_8$(OH)$_2$, which is considered as a nearly ideal model substance of $S$=1/2 kagome antiferromagnet, in the temperature region from 1.9 to 265 K. The frequency region is from 60 to 360 GHz and the applied pulsed magnetic field is up to 16 T. Observed g-value and linewidth show the increase below 20 K, which suggest the development of the short range order. Moreover, a gapless spin liquid ground state is suggested from the frequency-field relation at 1.9 K.<br />Comment: 5 pages, 6 figures, jpsj2 class file, to be published in J. Phys. Soc. Jpn

Details

ISSN :
13474073 and 00319015
Volume :
79
Database :
OpenAIRE
Journal :
Journal of the Physical Society of Japan
Accession number :
edsair.doi.dedup.....37bed9d2d7ef91c75fdb34b7e55861a1
Full Text :
https://doi.org/10.1143/jpsj.79.023708