Anomalous magnetoresistance behavior of R(2)Ni(3)Si(5) (R=Pr,Dy,Ho)
DSpace at IIT Bombay
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Title |
Anomalous magnetoresistance behavior of R(2)Ni(3)Si(5) (R=Pr,Dy,Ho)
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Creator |
MAZUMDAR, C
NIGAM, AK NAGARAJAN, R GUPTA, LC GODART, C PADALIA, BD CHANDRA, G VIJAYARAGHAVAN, R |
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Subject |
magnetic-properties
ce2ni3si5 |
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Description |
Magnetoresistance (MR) measurements on the antiferromagnetically ordered polycrystalline R(2)Ni(3)Si(5) (R = Pr, Dy, Ho; T-N = 8.5 K, 9.5 K, 6.0 K, respectively) materials are reported here. Field dependence of MR, measured both below and above their respective ordering temperatures and up to a field of 45 kOe, is found to be anomalous. In all the three cases, in the magnetically ordered state, MR is not monotonic but exhibits a maximum and a minimum. A considerable contribution to MR, with nearly linear held dependence and persisting even above the magnetic ordering temperature, is observed, which is unusual. Temperature dependence of MR (in a constant high field) above the magnetic ordering temperature, measured up to 100 K, exhibits a pronounced hump. The behavior of magnetoresistance at low temperatures is interpreted in terms of metamagnetism along with a short range ferromagnetic interaction.
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Publisher |
AMERICAN PHYSICAL SOC
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Date |
2011-07-17T11:11:07Z
2011-12-26T12:50:16Z 2011-12-27T05:36:27Z 2011-07-17T11:11:07Z 2011-12-26T12:50:16Z 2011-12-27T05:36:27Z 1996 |
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Type |
Article
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Identifier |
PHYSICAL REVIEW B, 54(9), 6069-6072
0163-1829 http://dx.doi.org/10.1103/PhysRevB.54.6069 http://dspace.library.iitb.ac.in/xmlui/handle/10054/4710 http://hdl.handle.net/10054/4710 |
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Language |
en
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