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Title: Pressure dependence of resistivity and magnetic properties in a Mn1.9Cr0.1Sb alloy
Authors: Repaka, D.V.M
Sharma, V
Chanda, A 
Mahendiran, R 
Ramanujan, R.V
Keywords: Antimony compounds
Binary alloys
Chromium compounds
Hydrostatic pressure
Magnetic fields
Magnetic properties
Magnetocaloric effects
Manganese alloys
Antiferromagnetic transition
Electronic transport properties
Inversion temperature
Magnetic entropy change
Negative magneto-resistance
Pressure dependence
Pressure-induced transitions
Spintronics application
Manganese compounds
Issue Date: 2017
Citation: Repaka, D.V.M, Sharma, V, Chanda, A, Mahendiran, R, Ramanujan, R.V (2017). Pressure dependence of resistivity and magnetic properties in a Mn1.9Cr0.1Sb alloy. AIP Advances 7 (12) : 125009. ScholarBank@NUS Repository.
Abstract: We report magnetic-field and hydrostatic pressure dependent electrical resistivity and magnetic properties of a Mn1.9Cr0.1Sb alloy. Upon cooling, the magnetization of Mn1.9Cr0.1Sb exhibits a first-order ferrimagnetic to antiferromagnetic transition at the exchange inversion temperature, TS = 261 K under a 0.1 T magnetic field. Our experimental results show that TS decreases with increasing magnetic field but increase with increasing hydrostatic pressure. The pressure induced transition is accompanied by a large positive baro-resistance of 30.5% for a hydrostatic pressure change of 0.69 GPa. These results show that the lattice parameters as well as the bond distance between Mn-Mn atoms play a crucial role in the magnetic and electronic transport properties of Mn1.9Cr0.1Sb. This sample also exhibits a large inverse magnetocaloric effect with a magnetic entropy change of ΔSm = +6.75 J/kg.K and negative magnetoresistance (44.5%) for a field change of 5 T at TS in ambient pressure which may be useful for magnetic cooling and spintronics applications. © 2017 Author(s).
Source Title: AIP Advances
ISSN: 2158-3226
DOI: 10.1063/1.4996216
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