THz-ESR system by using single shot and repeating pulsed magnetic fields

Hiroyuki Nojiri, Mitsuhiro Motokawal, Kiichi Okuda, Hiroshi Kageyama, Yutaka Ueda, Hidekazu Tanaka

Research output: Contribution to journalArticlepeer-review

12 Citations (Scopus)


A THz-ESR system has been developed by using both a single shot pulsed magnetic field system and a repeating pulsed magnetic field system. A single shot system has been used to generate high fields up to 40 T. The temperature of specimen can be changed between 450 K and 400 mK by using a gas-flow type cryostat, 3He and 4He cryostat systems. A repeating pulsed field system has been also used. The system is capable of generating 30 T every 2 seconds. A signal to noise ratio of the ESR spectrum has been improved more than one order of magnitude by the signal averaging. This technique provides a new way to improve the sensitivity of high frequency ESR system. Several recent examples on the application of the THz-ESR system are reported

Original languageEnglish
Pages (from-to)109-116
Number of pages8
JournalJournal of the Physical Society of Japan
Issue numberSUPPL. B
Publication statusPublished - 2003


  • ESR
  • High magnetic field
  • Magnetic excitation
  • Quantum spin


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