Elastic anomalies associated with possible charge order and other transitions in mixed-valent YbPd

Y. Nakanishi, T. Kamiyama, K. Ito, M. Nakamura, M. Sugishima, Akihiro Mitsuda, Hirofumi Wada, M. Yoshizawa

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Abstract

Elastic anomalies associated with possible charge order and other phase transitions in a mixed-valent compound YbPd were investigated by ultrasonic measurements. A pronounced elastic anomaly was observed at a possible charge-ordering temperature of 125 K, accompanied with a distinct hysteresis. On the other hand, a slight but clear elastic anomaly was observed at other phase transitions at 1.9 K and 105 K. We argue that the data can be described in terms of 4f low-lying level scheme of Yb ions under a crystalline electric field effct and a possible charge ordering although Yb seems to go into a mixed-valent state in YbPd.

Original languageEnglish
Pages (from-to)462-470
Number of pages9
JournalChinese Journal of Physics
Volume49
Issue number1
Publication statusPublished - Feb 1 2011

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

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    Nakanishi, Y., Kamiyama, T., Ito, K., Nakamura, M., Sugishima, M., Mitsuda, A., Wada, H., & Yoshizawa, M. (2011). Elastic anomalies associated with possible charge order and other transitions in mixed-valent YbPd. Chinese Journal of Physics, 49(1), 462-470.