Development of High-Pressure and Multi-Frequency ESR System and Its Application to Quantum Spin System

Takahiro Sakurai, Ryosuke Matsui, Kohei Kawasaki, Susumu Okubo, Hitoshi Ohta, Kazuyuki Matsubayashi, Yoshiya Uwatoko, Kazutaka Kudo, Yoji Koike

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Abstract

We have developed a high-pressure and multi-frequency electron spin resonance (ESR) system in the submillimeter wave region. The pressure is generated by the piston–cylinder pressure cell whose inner parts are all made of ceramics. The requirements for the inner parts of the pressure cell are toughness and transmission in the submillimeter wave region and they enable us to observe the transmitted light through a sample subjected to high pressure. It was found that both properties can be achieved by the combination of the inner parts made of the ZrO2-based ceramic and the Al2O3 ceramic. For the Shastry-Sutherland compound SrCu2(BO3)2, we observed the direct ESR transition from the singlet ground state to the first excited triplet sates at 1.5 GPa successfully in the frequency region from 300 to 700 GHz.

Original languageEnglish
Pages (from-to)1007-1012
Number of pages6
JournalApplied Magnetic Resonance
Volume46
Issue number9
DOIs
Publication statusPublished - Oct 1 2015

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ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

Cite this

Sakurai, T., Matsui, R., Kawasaki, K., Okubo, S., Ohta, H., Matsubayashi, K., Uwatoko, Y., Kudo, K., & Koike, Y. (2015). Development of High-Pressure and Multi-Frequency ESR System and Its Application to Quantum Spin System. Applied Magnetic Resonance, 46(9), 1007-1012. https://doi.org/10.1007/s00723-015-0660-9