Journal
JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN
Volume 79, Issue 2, Pages -Publisher
PHYSICAL SOC JAPAN
DOI: 10.1143/JPSJ.79.023708
Keywords
high-field ESR; kagome lattice; frustration; vesignieite; spin dynamics
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Funding
- Japan Society for the Promotion of Science (JSPS) [19540367]
- Ministry of Education. Culture, Sports, Science and Technology of Japan (MEXT) [19052005, 17072005]
- Grants-in-Aid for Scientific Research [22540348, 19540367] Funding Source: KAKEN
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High-field electron spin resonance (ESR) measurements have been performed oil vesignieite BaCu3V2O8(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.
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