Magnetization of a Dy(Fe11Ti) single crystal
Citation:B P Hu, H S Li, J M D.Coey and J P Gavigan 'Magnetization of a Dy(Fe11Ti) single crystal' in Physical Review B, 41, (4), 1990, pp 2221 - 2228
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Magnetization curves have been measured in the temperature range from 4.2 to 300 K along the , , and  directions of a Dy(Fe11Ti) single crystal in fields up to 7 T. The magnetic moment is along  below 58 K and parallel to the c axis above 200 K. Between the two spin-reorientation transitions (first order at 58 K, second order at 200 K) there is a canted spin structure where the net magnetization lies in a (010) plane and is inclined at an angle to the c axis. Three first-order magnetization processes are observed as a function of applied field below 150 K. All the data are used to derive a set of five crystal-field coefficients at the single rare-earth site of the ThMn12 structure: A20=-32.3 Ka0-2, A40=-12.4 Ka0-4, A44=118 Ka0-4, A60=2.56 Ka0-6, A64=0.64 Ka0-6. Spin reorientation observed in the other members of the R(Fe11Ti) (R==rare earth) series, except those in Tb(Fe11Ti), are explained by the same crystal-field coefficients.
Author: COEY, JOHN MICHAEL DAVID
Publisher:American Physcial Society
Series/Report no:Physical Review B
Availability:Full text available