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Title: Enhanced magnetic ordering in Sm metal under extreme pressure

Journal Article · · Physical Review B
 [1];  [1]
  1. Washington Univ., St. Louis, MO (United States)

The dependence of the magnetic ordering temperature To of Sm metal was determined through four-point electrical resistivity measurements to pressures as high as 150 GPa. A strong increase in To with pressure is observed above 85 GPa. In this pressure range, Sm ions alloyed in dilute concentration with superconducting Y exhibit giant Kondo pair breaking. Taken together, these results suggest that for pressures above ~85 GPa Sm is in a highly correlated electron state, like a Kondo lattice, with an unusually high value of To. Furthermore, a detailed comparison is made with similar results obtained earlier on Nd, Tb, and Dy and their dilute magnetic alloys with superconducting Y.

Research Organization:
Carnegie Inst. of Washington, Washington, DC (United States)
Sponsoring Organization:
USDOE National Nuclear Security Administration (NNSA); National Science Foundation (NSF)
Grant/Contract Number:
FC52-08NA28554; DMR-1104742; DMR-1505345
OSTI ID:
1614439
Alternate ID(s):
OSTI ID: 1546152
Journal Information:
Physical Review B, Vol. 99, Issue 8; ISSN 2469-9950
Publisher:
American Physical Society (APS)Copyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 8 works
Citation information provided by
Web of Science

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Cited By (1)

High-pressure structural systematics in samarium up to 222 GPa text January 2020