Eiji Ohmichi, Toshihiro Miki Hidekazu Horie, Tsubasa Okamoto, Hideyuki Takahashi, Yoshinori Higashic Shoichi Itoh, Hitoshi Ohta,
https://www.sciencedirect.com/science/article/pii/S1090780717303051
We developed piezoresistive microcantilevers for mechanically detected electron spin resonance (ESR) in the millimeter-wave region. In this article, fabrication process and device characterization of our self-sensing microcantilevers are presented. High-frequency ESR measurements of a microcrystal of paramagnetic sample is also demonstrated at multiple frequencies up to 160 GHz at liquid helium temperature. Our fabrication is based on relatively simplified processes with silicon-on-insulator (SOI) wafers and spin-on diffusion doping, thus enabling cost-effective and time-saving cantilever fabrication.
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