Observation of large positive magnetoresistance and its sign reversal in GdRhGe
arXiv:1302.4226 · doi:10.1016/j.jallcom.2013.10.123
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.
13 pages, 8 figures
Cited by in corpus (11)
- Review on magnetic and related properties of RTX compounds
- Large anomalous Hall effect in a hexagonal ferromagnetic Fe5Sn3 single crystal
- RRhGe (R=Tb, Dy, Er, Tm): An experimental and theoretical study
- Change in the order of magnetic transition in HoRhGe as probed by magnetoresistance and magnetocaloric studies
- Superconductivity at 3.1 K in the orthorhombic ternary silicide ScRuSi
- Magnetic phenomena in equiatomic ternary rare earth compounds
- Low-Moment Semiconducting Properties of Quaternary Heusler Alloy CoRuTiSn
- Highly sensitive magnetic properties and large linear magnetoresistance in antiferromagnetic CrxSe(0.875\lex\le1)single crystals
- CoRuTiGe: A Possible Spin Gapless Semiconductor
- Low magnetic moment and unconventional magneto-transport in half-Heusler alloy CoVGe
- Unusual Multiple Magnetic Transitions and Anomalous Hall Effect Observed in Antiferromagnetic Weyl Semimetal, MnGe (Ge-rich)