TITLE

Torque detected broad band electron spin resonance

AUTHOR(S)
El Hallak, Fadi; van Slageren, Joris; Dressel, Martin
PUB. DATE
September 2010
SOURCE
Review of Scientific Instruments;Sep2010, Vol. 81 Issue 9, p095105
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
We present a novel technique to measure high frequency electron spin resonance spectra in a broad frequency range (30-1440 GHz) with high sensitivity. We use a quasioptical setup with tunable frequency sources to induce magnetic resonance transitions. These transitions are detected by measuring the change in the magnetic torque signal by means of cantilever torque magnetometry. The setup allows tuning of the frequency, magnetic field, polarization, and the angle between the sample and the external magnetic field. We demonstrate the capabilities of this technique by showing preliminary results obtained on a single crystal of an Fe4 molecular nanomagnet.
ACCESSION #
54049784

 

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