TY - JOUR
T1 - Variations of magnetocaloric effect and magnetoresistance across RCuGe (R = Tb, Dy, Ho, Er) compounds
AU - Gupta, Sachin
AU - Suresh, K. G.
N1 - Funding Information:
SG thanks CSIR, New Delhi for the fellowship. The authors thanks UGC-DAE, Indore and Dr. R. Rawat for providing transport measurements facility.
Publisher Copyright:
© 2015 Elsevier B.V. All rights reserved.
PY - 2015/10/1
Y1 - 2015/10/1
N2 - Abstract RCuGe (R=Tb-Er) compounds have been studied by structural, magnetic, magnetocaloric and magnetotransport measurements. All these compounds are iso-structural and show antiferromagnetic ordering below their Néel temperatures (TN). Except TbCuGe, all the studied compounds show large magnetocaloric effect (MCE), arising due to the field induced metamagnetic transition. They also show a sign reversal of magnetoresistance (MR) with change in temperature or field. The non-monotonic variation of the magnitude of MR is attributed to the competing effects of Lorentz force, changes in the spin disorder scattering and the spin fluctuations.
AB - Abstract RCuGe (R=Tb-Er) compounds have been studied by structural, magnetic, magnetocaloric and magnetotransport measurements. All these compounds are iso-structural and show antiferromagnetic ordering below their Néel temperatures (TN). Except TbCuGe, all the studied compounds show large magnetocaloric effect (MCE), arising due to the field induced metamagnetic transition. They also show a sign reversal of magnetoresistance (MR) with change in temperature or field. The non-monotonic variation of the magnitude of MR is attributed to the competing effects of Lorentz force, changes in the spin disorder scattering and the spin fluctuations.
KW - Magnetocaloric effect
KW - Magnetoresistance
KW - RTX compounds
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U2 - 10.1016/j.jmmm.2015.04.116
DO - 10.1016/j.jmmm.2015.04.116
M3 - Article
AN - SCOPUS:84928940692
SN - 0304-8853
VL - 391
SP - 151
EP - 155
JO - Journal of Magnetism and Magnetic Materials
JF - Journal of Magnetism and Magnetic Materials
M1 - 60175
ER -