Accession Number:

ADA011779

Title:

Magnetic Relaxation Effects in PrCo5 and Sm(x)Nd(1-x)Co5 Induced by Hydrogen and Deuterium.

Descriptive Note:

Final rept. 3 Dec 73-30 Sep 74,

Corporate Author:

MANITOBA UNIV WINNIPEG DEPT OF PHYSICS

Personal Author(s):

Report Date:

1975-01-01

Pagination or Media Count:

36.0

Abstract:

Measuremtns of the ac susceptibility of PrCo5 powder parallel to its c-axis show the existence of two relaxation processes which are present in samples exposed to hydrogen or deuterium but not in degassed samples. The two relaxations have time constants of 10 sec. at 165K and at 200K and are described by effective activation energies of 0.37 eV and 0.51 eV, respectively. SmxNd1-xCox crystals treated with hydrogen show a magnetic relaxation equivalent to the higher energy process in PrCo5 between -20C and 50C, a strong Barkhausen effect dominates the magnetic behavior.

Subject Categories:

  • Solid State Physics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE