Novel phase transition probed by sound velocity in quasi-one-dimensional ising-like antiferromagnet BaCo2V2O8

Hironori Yamaguchi, Shadi Yasin, Sergei Zherlitsyn, Kumiko Omura, Shojiro Kimura, Shunsuke Yoshii, Kouichi Okunishi, Zhangzhen He, Tomoyasu Taniyama, Mitsuru Itoh, Masayuki Hagiwara

研究成果: Article査読

14 被引用数 (Scopus)

抄録

We have performed magnetostriction and ultrasound measurements on the quasi-one-dimensional S=1/2 Ising-like antiferromagnet BaCo2V 2O8 in high magnetic fields of up to 51 T. The magnetostriction shows lattice shrinking along the c-axis, and we interpret it as the lattice distortion caused by exchange striction and Van-Vleck paramagnetism. It is clarified that the field dependence of sound velocity is correlated to the magnetostriction. We observed a pronounced softening in the sound velocity of the longitudinal-acoustic c33 mode and found a novel phase transition.

本文言語English
論文番号033701
ジャーナルjournal of the physical society of japan
80
3
DOI
出版ステータスPublished - 2011 3月

ASJC Scopus subject areas

  • 物理学および天文学(全般)

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