Volume 53, Number 3, February 2001
|Page(s)||378 - 382|
|Section||Condensed matter: electronic structure, electrical, magnetic, and optical properties|
|Published online||01 December 2003|
Giant diamagnetism in selenides up to 310 K
Université d'Ottawa - 150, Louis Pasteur, K1N 6N5, Canada
Accepted: 22 November 2000
Giant diamagnetism, with values to , was observed from 4.2 K to 310 K in selenides of monoclinic NiAs structure prepared with stoichiometries , u = 0.1 to 1.0. A positive component due to magnetic order of the spins was present from 4.2 K to about 65 K-150 K, depending on the sample. The magnetic order was minimized by doping with . Another sample doped with Ga and Ge gave a decrease in the slope of negative susceptibility vs starting at 220 K and thus an increase in the range of diamagnetism to well over ambient temperature.
PACS: 75.20.-g – Diamagnetism and paramagnetism / 74.72.-h – High- compounds
© EDP Sciences, 2001
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