High-frequency electron spin resonance system using a microcantilever and a pulsed magnetic field

被引：28
|
作者：
Ohmichi, E. [1 ]
Mizuno, N. [1 ]
Kimata, M. [2 ]
Ohta, H. [3 ]
Osada, T. [4 ]
机构：
[1] Kobe Univ, Grad Sch Sci, Nada Ku, Kobe, Hyogo 6578501, Japan
[2] Kobe Univ, Grad Sch Sci & Technol, Nada Ku, Kobe, Hyogo 6578501, Japan
[3] Kobe Univ, Mol Photosci Res Ctr, Nada Ku, Kobe, Hyogo 6578501, Japan
[4] Univ Tokyo, Inst Solid State Phys, Kashiwa, Chiba 2778581, Japan
来源：
REVIEW OF SCIENTIFIC INSTRUMENTS | 2009年 / 80卷 / 01期
关键词：
magnetisation; paramagnetic resonance; ESR;
D O I：
10.1063/1.3069287
中图分类号：
TH7 [仪器、仪表];
学科分类号：
0804 ; 080401 ; 081102 ;
摘要：
A novel technique of high-frequency electron spin resonance (ESR) in a pulsed magnetic field is presented. Our technique is based on the magnetic detection of a magnetization change associated with the ESR absorption using a microcantilever. We successfully observed ESR signals of a microcrystal (mass similar to 1 mu g) in the millimeter-wave region up to 130 GHz in pulsed magnetic fields of up to 2.4 T. This result corresponds to the spin sensitivity of similar to 10(11) spins/G, which is four orders of magnitude better than that of conventional transmission-type ESR techniques.
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页数：5
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