Planar Nernst and Hall effect in patterned ultrathin film of La0.7Sr0.3MnO3

Control of anomalous Nernst effect in spintronic materials

“…53) In addition, the electric field effects in manganites such as the control of magnetization, magnetic anisotropy, domain structure, and spin polarization are interesting. [54][55][56][57][58][59][60][61] To apply these electric field effects in actual devices, low energy consumption is extremely important, and the ability to control the ANE by a small electric field in manganites is expected. Here, control of the ANE in La 0.7 Ca 0.3 3 thin films using a field-effect gated device is demonstrated.…”

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

“…To create the in-plane thermal gradient across the structure along the x-axis, a ceramic heater at one (hot) end and a Cu-heat sink at the other (cold) end were used as shown in fig. 1(c) [6]. The pre-calibrated temperature sensors were used to sense the temperature difference across the structure, and the transverse output voltage (V y ) and longitudinal output voltage (V x ) were measured by a nanovoltmeter.…”

“…, respectively, where ∆T x is the temperature difference applied along the x-axis to the sample and L and w are distance between the thermometry and width of sample [1][2][3][4][5][6].…”

“…Hence, this study will be helpful not only for exploring the physics of spin-orbit coupling phenomena using the interplay among heat, spin, pure spin-current and charge, but also help to explore the origin of anomaly observed at low temperature in NiMnSb. It will be interesting to see whether such anomaly observed in thermal and transport properties can also affect the anisotropy [26][27][28] of NiMnSb thin film.…”

“…The anomalous Nernst effect (ANE), thermally induced transversal voltage in the direction perpendicular to both the temperature gradient and the magnetization, is a complimentary probe for the spin-orbit coupling phenomena in the field of spin caloritoronics. [1][2][3][4][5][6][7][8][9] The interplay between the ANE, pure spin-current and spin-polarized current generated by a thermal gradient has attracted many researchers from the last two decades. The ANE can be utilized to investigate the spin-orbit coupling phenomena through the interaction among spin, charge and heat.…”