Anomaly in anomalous Nernst effect at low temperature for C1b-type NiMnSb half-Heusler alloy thin film

Abstract

The anomaly in the anomalous Nernst effect (ANE) was observed for a C1b-type NiMnSb half-Heusler alloy thin film deposited on a MgO (001) substrate. The Nernst angle (θANE) showed maximum peak with decreasing temperature and reached 0.15 at 80 K, which is considered to be brought by the cross-over from half-metal to normal ferromagnet in NiMnSb at low temperature. This anomaly was also observed for the transport properties, that is, both the resistivity and the anomalous Hall resistivity in the same temperature range.

arXiv comment13 pages, 8 figures

References in corpus (7)

• Origin and Properties of the Gap in the Half-Ferromagnetic Heusler Alloys
• Room-temperature spin-orbit torque in NiMnSb
• Tunable damping, saturation magnetization, and exchange stiffness of half-Heusler NiMnSb thin films
• Sign Reversal of anisotropic magnetoresistance in La0.7Ca0.3MnO3/STO ultrathin films
• Effect of B-site bismuth doping on magnetic and transport properties of La0.5Ca0.5Mn1-xBixO3 thin films
• The fate of half-metallicity near interfaces: the case of NiMnSb/MgO and NiMnSi/MgO
• Spectral signatures of thermal spin disorder and excess Mn in half-metallic NiMnSb

Cited by in corpus (4)

• Transverse thermoelectric generation using magnetic materials
• Creation of flexible spin-caloritronic material with giant transverse thermoelectric conversion by nanostructure engineering
• Nanoscale magnetization and current imaging using scanning-probe magneto-thermal microscopy
• Unidirectional magnetoresistance and spin-orbit torque in NiMnSb