Majumdar, Subham ; Bitterlich, H. ; Behr, G. ; Löser, W. ; Paulose, P. L. ; Sampathkumaran, E. V. (2001) Magnetic and transport behavior of single-crystalline Dy2PdSi3 Physical Review B: Condensed Matter and Materials Physics, 64 (1). 012418_1-012418_4. ISSN 1098-0121
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Official URL: http://prb.aps.org/abstract/PRB/v64/i1/e012418
Related URL: http://dx.doi.org/10.1103/PhysRevB.64.012418
Abstract
The results of magnetization, magnetic susceptibility (χ), electrical measurements, and magnetoresistance measurements as a function of temperature (2-300 K) in the single-crystalline Dy2PdSi3 are reported for two different directions ([0001] and [101−0]) of the crystal. The results reveal that there is an onset of magnetic ordering below 8 K. The high-temperature paramagnetic Curie temperature is positive for both directions, though antiferromagnetic coupling dominates in the basal plane; the magnetic coupling along the c axis is of a ferromagnetic type. The electrical resistance data for both the directions indicate the formation of magnetic Brillouin-zone boundary gaps. A finding of importance is that the broad peak in the temperature dependent χ around 50 K noted for the analogous Tb compound is not observed in the present investigations, though there is a weak difference between the zero-field-cooled and field-cooled χ versus T curves below 40 K (the implications of which are not clear at present). The results establish that this compound exhibits giant magnetoresistance behavior at low temperatures. We also compare the observed anisotropic behavior with those in Tb and Gd compounds.
Item Type: | Article |
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Source: | Copyright of this article belongs to The American Physical Society. |
ID Code: | 45783 |
Deposited On: | 29 Jun 2011 03:26 |
Last Modified: | 29 Jun 2011 03:26 |
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