MAGNETIC-RESONANCE SPECTROMETER WITH A DC SQUID DETECTOR

被引：34

作者：

CONNOR, C ^{[1
]}

CHANG, J ^{[1
]}

PINES, A ^{[1
]}

机构：

[1] UNIV CALIF BERKELEY LAWRENCE BERKELEY LAB,DIV MAT & CHEM SCI,BERKELEY,CA 94720

来源：

REVIEW OF SCIENTIFIC INSTRUMENTS | 1990年 / 61卷 / 03期

关键词：

D O I：

10.1063/1.1141476

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

We describe a dc superconducting quantum interference device (SQUID) based magnetic resonance spectrometer particularly suited to measurements in the frequency range of 100 kHz to several megahertz. Results are presented for nuclear quadrupole resonance (NQR) of boron-11 in boron nitride at 4.2 K, yielding ωQ =1467±2 kHz. We also present a direct measurement of the methyl group tunneling frequency, ωt =210±10 kHz, of propionic acid in low field, at 4.2 K.

引用

页码：1059 / 1063

页数：5

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