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Effect of absorbed hydrogen on magnetic behavior of Th7Co3and Th7Ni3

Authors
Journal
Solid State Communications
0038-1098
Publisher
Elsevier
Publication Date
Volume
33
Issue
9
Identifiers
DOI: 10.1016/0038-1098(80)90281-1
Disciplines
  • Physics

Abstract

Abstract The Pauli paramagnets Th 7Fe 3, Th 7Co 3 and Th 7Ni 3 become superconducting below 1.86 K, 1.83 K and 1.98 K, respectively. These compounds absorb large amounts of hydrogen to form the very hydrogen-rich phases Th 7Fe 3H 30, Th 7Co 3H 22 and Th 7Ni 3H 24. From magnetization studies it is found that hydrogenation results in an increase in the susceptibility of Th 7Co 3, and in a decrease in the susceptibility of Th 7Ni 3, but magnetic ordering is not observed in these two. This is in contrast to the behavior of Th 7Fe 3H 30 which is magnetically ordered with a Curie temperature above 350 K.

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