Magnetic Susceptibility of Cerium Metal Under Pressure

M. R. MacPherson; G. E. Everett; D. Wohlleben; M. B. Maple

doi:10.1103/PhysRevLett.26.20

Magnetic Susceptibility of Cerium Metal Under Pressure

M. R. MacPherson, G. E. Everett, D. Wohlleben, and M. B. Maple

Phys. Rev. Lett. 26, 20 – Published 4 January 1971

Abstract

The demagnetization of the $4 f$ state of metallic Ce as function of pressure was studied by magnetic susceptibility measurements. In contrast to the $β$ and $γ$ phases, the collapsed $α$ phase does not show a local moment but exhibits instead a strong local exchange enhancement of the susceptibility. The susceptibility decreases linearly with increasing pressure in our measuring range and is estimated to decrease by 80% between the boundaries of the magnetic and the superconducting phases. The results are consistent with the Anderson model of local moment formation over the entire range of interest of the parameter $E_{4 f} - E_{F}$ .

Received 22 September 1970

DOI:https://doi.org/10.1103/PhysRevLett.26.20

Authors & Affiliations

M. R. MacPherson^* and G. E. Everett^*

University of California, Riverside, California 92502

D. Wohlleben^† and M. B. Maple^†

University of California, San Diego, La Jolla, California 92037

^*Research supported by the U. S. Atomic Energy Commission.
^†Research sponsored by the U. S. Air Force Office of Scientific Research, Office of Aerospace Research, under Grant No. Af-AFOSR-631-67-A.