Spin Reorientation Transition and Exotic Magnetism in Dilute Gd1-xYx Single Crystals (x < 0.1) Revealed by A.C. Magnetoresistance Studies

Abstract:

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We measured dilute Gd1-xYx single crystals (x < 0.1) samples using an a.c. magnetoresistance technique. This technique consists in applying a constant current to the sample and measuring the temperature dependent a.c. voltage under a time modulated external magnetic field (f = 333 Hz). The a.c. voltage signal is decomposed in real and imaginary components or, alternatively, in amplitude and phase signals relative to the a.c. magnetic field. This technique proved to be extremely sensitive and effective to display all the magnetic phase transitions revealed by the previous d.c. transport measurements, plus an additional spectrum of other critical features.

Info:

Periodical:

Materials Science Forum (Volumes 514-516)

Edited by:

Paula Maria Vilarinho

Pages:

309-313

DOI:

10.4028/www.scientific.net/MSF.514-516.309

Citation:

J. A.M. Santos et al., "Spin Reorientation Transition and Exotic Magnetism in Dilute Gd1-xYx Single Crystals (x < 0.1) Revealed by A.C. Magnetoresistance Studies", Materials Science Forum, Vols. 514-516, pp. 309-313, 2006

Online since:

May 2006

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$35.00

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