In-situ temperature calibration below 1 K using the {mu}{sup +} Knight shift in CMN
Author(s) -
R. H. Heffner,
L. P. Le,
G.J. Nieuwenhuys,
D. E. MacLaughlin,
A. Amato,
C. Baines
Publication year - 1996
Publication title -
osti oai (u.s. department of energy office of scientific and technical information)
Language(s) - English
Resource type - Reports
DOI - 10.2172/244664
Subject(s) - knight shift , magnesium nitrate , hyperfine structure , analytical chemistry (journal) , cerium , calibration , magnesium , paramagnetism , chemistry , curie temperature , physics , atomic physics , condensed matter physics , inorganic chemistry , ferromagnetism , superconductivity , organic chemistry , chromatography , quantum mechanics
The authors present {mu}{sup +} paramagnetic shift measurements between 12 K and about 65 mK in cerium magnesium nitrate (CMN) to investigate its utility as an in-situ temperature calibration source for low temperature {mu}SR experiments. CMN is a salt which exhibits Curie-law susceptibility to temperatures as low as 5 mK. The {mu}{sup +} Knight shift is measured to be (1.46 {+-} 0.03) {times} 10{sup {minus}3}/T + (0.004 {+-} 0.02) {times} 10{sup {minus}3}, corresponding to a transferred hyperfine field of {minus}28.5 kOe/{mu}{sub B}
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