High-frequency ESR Measurement at 315 GHz Using a Microcantilever

Autor: Eiji Ohmichi, Shuya Hirano, Noriaki Mizuno, Hitoshi Ohta
Rok vydání: 2010
Předmět:
Zdroj: Journal of Low Temperature Physics. 159:276-279
ISSN: 1573-7357
0022-2291
Popis: 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 109 spins/G at 80 GHz. We also demonstrate multi-frequency ESR measurement of a µm-size sample at 315 GHz by cantilever detection.
Databáze: OpenAIRE