A multifrequency high-field pulsed electron paramagnetic resonance/electron-nuclear double resonance spectrometer

被引：85
|
作者：
Morley, Gavin W. [1 ]
Brunel, Louis-Claude [1 ]
van Tol, Johan [1 ]
机构：
[1] Florida State Univ, Ctr Interdisciplinary Magnet Resonance, Natl High Magnet Field Lab, Tallahassee, FL 32310 USA
来源：
REVIEW OF SCIENTIFIC INSTRUMENTS | 2008年 / 79卷 / 06期
基金：
美国国家科学基金会; 英国工程与自然科学研究理事会;
关键词：
D O I：
10.1063/1.2937630
中图分类号：
TH7 [仪器、仪表];
学科分类号：
0804 ; 080401 ; 081102 ;
摘要：
We describe a pulsed electron paramagnetic resonance spectrometer operating at several frequencies in the range of 110-336 GHz. The microwave source at all frequencies consists of a multiplier chain starting from a solid state synthesizer in the 12-15 GHz range. A fast p-i-n-switch at the base frequency creates the pulses. At all frequencies a Fabry-Perot resonator is employed and the pi/2 pulse length ranges from similar to 100 ns at 110 GHz to similar to 600 ns at 334 GHz. Measurements of a single crystal containing dilute Mn(2+) impurities at 12 T illustrate the effects of large electron spin polarizations. The capabilities also allow for pulsed electron-nuclear double resonance (ENDOR) experiments as demonstrated by Mims ENDOR of (39)K nuclei in Cr:K(3)NbO(8). (c) 2008 American Institute of Physics.
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页数：5
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