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Anisotropic Magnetization of HoNi2B2C

Published online by Cambridge University Press:  22 February 2011

P.C. Canfield
Affiliation:
Ames Lab and Iowa State University, Ames, Iowa 50011, U.S.A.
B.K. Cho
Affiliation:
Ames Lab and Iowa State University, Ames, Iowa 50011, U.S.A.
D.C. Johnston
Affiliation:
Ames Lab and Iowa State University, Ames, Iowa 50011, U.S.A.
M.F. Hundley
Affiliation:
Los Alamos National Laboratory, Los Alamos, New Mexico 87545, U.S.A.
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Abstract

Anisotropic, temperature dependent magnetization measurements on single crystals of HoNi2B2C indicate that there is a cascade of magnetic transitions in zero and low applied magnetic fields. Comparison of the temperature dependence of the specific heat and d(χT)/dT data shows a remarkable agreement in the low field limit, supporting the use of d(χT)/dT as a method of determining the magnetic transition temperatures as a function of applied field. The magnetic transition temperatures determined by this analysis are remarkably sensitive to the applied field and highly anisotropic. Comparison to similar data for ErNi2B2C show that the sensitivity and anisotropy are common features. These data emphasize the importance of anisotropic measurements of field dependent properties on single crystal samples, since the application of a magnetic field to a polycrystalline sample will effectively broaden the transition temperatures.

Type
Research Article
Copyright
Copyright © Materials Research Society 1995

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References

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