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A Wideband Spectrometer for NMR Studies (1012.5897v1)
Published 29 Dec 2010 in physics.ins-det and cond-mat.mtrl-sci
Abstract: The design of a wideband decimeter-wave (200 - 900 MHz) spectrometer with a magnetic induction of up to ~ 10 T is described. This spectrometer is intended for studying electronic - nuclear oscillations in antiferromagnets at low temperatures (4.2 - 1.3 K). Critical field H_c = 2.5 +/- 0.3 T of a reorientation transition in a noncollinear antiferromagnet Mn3Al2Ge3O12 at temperature T = 1.3 K was determined from a 55Mn2+ NMR spectrum.
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