ESR spectrometer with a loop-gap resonator for cw and time resolved studies in a superconducting magnet

F. Simon, Ferenc Murányi

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

The design and performance of an electron spin resonance spectrometer operating at 3 and 9 GHz microwave frequencies combined with a 9-T superconducting magnet are described. The probehead contains a compact two-loop, one gap resonator, and is inside the variable temperature insert of the magnet enabling measurements in the 0-9 T magnetic field and 1.5-400 K temperature range. The spectrometer allows studies on systems where resonance occurs at fields far above the g ≈ 2 paramagnetic condition such as in antiferromagnets. The low quality factor of the resonator allows time resolved experiments such as, e.g., longitudinally detected ESR. We demonstrate the performance of the spectrometer on the NaNiO2 antiferromagnet, the MgB2 superconductor, and the RbC60 conducting alkaline fulleride polymer.

Original languageEnglish
Pages (from-to)288-295
Number of pages8
JournalJournal of Magnetic Resonance
Volume173
Issue number2
DOIs
Publication statusPublished - Apr 2005

Fingerprint

Time and motion study
Superconducting magnets
superconducting magnets
Paramagnetic resonance
Spectrometers
Resonators
resonators
spectrometers
Temperature
Magnets
Electron Spin Resonance Spectroscopy
Magnetic Fields
Microwaves
fullerides
Polymers
Microwave frequencies
inserts
microwave frequencies
Superconducting materials
far fields

Keywords

  • Alkaline fullerides
  • cw ESR
  • Longitudinally detected ESR
  • Loop gap resonators
  • Strongly correlated spin systems
  • Superconducting magnet
  • Superconductors
  • Time resolved ESR

ASJC Scopus subject areas

  • Molecular Biology
  • Physical and Theoretical Chemistry
  • Spectroscopy
  • Radiology Nuclear Medicine and imaging
  • Condensed Matter Physics

Cite this

ESR spectrometer with a loop-gap resonator for cw and time resolved studies in a superconducting magnet. / Simon, F.; Murányi, Ferenc.

In: Journal of Magnetic Resonance, Vol. 173, No. 2, 04.2005, p. 288-295.

Research output: Contribution to journalArticle

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