Abstract
Magnetic properties, heat capacity and magnetoresistance (MR) of polycrystalline GdRhGe are investigated. It shows two antiferromagnetic transitions, one at T1 = 31.8 K and the other at T2 = 24 K, and field induced metamagnetic transition over a wide temperature range. The ac susceptibility data reveal that the transition at 24 K is not simple antiferromagnetic. Dominant contributions to the heat capacity and the resistivity have been identified. MR is found to show sign reversal just below T1 and attains a large positive value of 48% at 2 K for 50 kOe. Like MR, the isothermal magnetic entropy change also undergoes a sign reversal as the temperature is varied, indicating a change of the magnetic structure and the moment amplitude in determining these properties.
Original language | English |
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Pages (from-to) | 600-604 |
Number of pages | 5 |
Journal | Journal of Alloys and Compounds |
Volume | 586 |
DOIs | |
Publication status | Published - 2014 Jan 1 |
Keywords
- Antiferromagnet
- Magnetocaloric effect
- Magnetoresistance
- Metamagnetic transition
ASJC Scopus subject areas
- Mechanics of Materials
- Mechanical Engineering
- Metals and Alloys
- Materials Chemistry