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Title: Evidence for a pressure-induced magnetic-nonmagnetic transition of Pr impurities in La

Journal Article · · Phys. Rev. Lett.; (United States)

The depression of the superconducting transition temperature of lanthanum due to the presence of praseodymium impurities shows a pronounced maximum as a function of pressure at approx. =230 kbar. We conclude that the 4f/sup 2/ shell of Pr delocalizes under such high pressure and hence demagnetizes in analogy to the familiar case of the 4f/sup 1/ configuration of Ce impurities in La at low pressure.

Research Organization:
IBM Thomas J. Watson Research Center, Yorktown Heights, New York 10598
OSTI ID:
6342932
Journal Information:
Phys. Rev. Lett.; (United States), Vol. 46:21
Country of Publication:
United States
Language:
English