High-frequency ESR Measurement at 315 GHz Using a Microcantilever

High-frequency ESR technique using a microcantilever is reported. In our technique, an electromagnetic wave is irradiated at a sample-mounted cantilever via oversized waveguide, and ESR absorption is mechanically detected as a change of magnetic torque of the sample. The estimated spin sensitivity w...

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Bibliographic Details
Published inJournal of low temperature physics Vol. 159; no. 1-2; pp. 276 - 279
Main Authors Ohmichi, E., Mizuno, N., Hirano, S., Ohta, H.
Format Journal Article
LanguageEnglish
Published Boston Springer US 01.04.2010
Subjects
Characterization and Evaluation of Materials
Condensed Matter Physics
Electromagnetic waves
Irradiation
Low temperature physics
Magnetic Materials
Magnetism
Physics
Physics and Astronomy
Torque
Waveguides
Cantilever
Electron spin resonance
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Summary:High-frequency ESR technique using a microcantilever is reported. In our technique, an electromagnetic wave is irradiated at a sample-mounted cantilever via oversized waveguide, and ESR absorption is mechanically detected as a change of magnetic torque of the sample. The estimated spin sensitivity was 10 9 spins/G at 80 GHz. We also demonstrate multi-frequency ESR measurement of a µm-size sample at 315 GHz by cantilever detection.
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
content type line 23
ISSN:0022-2291
1573-7357
DOI:10.1007/s10909-009-0133-3