High-frequency ESR measurements using pulsed magnetic fields in Kobe

H. Ohta, S. Okubo, T. Sakurai, T. Goto, K. Kirita, K. Ueda, Y. Uwatoko, T. Saito, M. Azuma, M. Takano, J. Akimitsu

Research output: Contribution to journalArticle

25 Citations (Scopus)

Abstract

Recent development of the high-field facility in Kobe University is presented. We installed a 3 kV, 100 kJ capacitor bank, this is four times larger in energy than the previous one, and we achieved 42 T recently using a Cu-Ag pulsed magnet. Recent high-field ESR studies of quantum spin systems such as high pressure phase (VO)2P2O7 will be presented. The high-pressure phase of (VO)2P2O7 is the S = 1/2 bond alternating antiferromagnet; we found an anomaly in the ESR mode of the high-pressure phase (VO)2P2O7 single crystal at 20 T by observing the frequency dependence at 4.2 K. Finally, we refer to our new development of the high-field ESR system under high pressure. We developed a compact pressure cell with sapphire window which fits into our pulsed magnet. The ESR result using this pressure cell will be presented.

Original languageEnglish
Pages (from-to)624-629
Number of pages6
JournalPhysica B: Condensed Matter
Volume294-295
DOIs
Publication statusPublished - Jan 2001
Externally publishedYes

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Electrical and Electronic Engineering

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    Ohta, H., Okubo, S., Sakurai, T., Goto, T., Kirita, K., Ueda, K., Uwatoko, Y., Saito, T., Azuma, M., Takano, M., & Akimitsu, J. (2001). High-frequency ESR measurements using pulsed magnetic fields in Kobe. Physica B: Condensed Matter, 294-295, 624-629. https://doi.org/10.1016/S0921-4526(00)00731-6