Ahn, Jeong Ung Jeon, Jeehoon Cho, Seong Won Lee, OukJae Lee, Suyoun Koo, Hyun Cheol 2024-01-19T09:33:27Z 2024-01-19T09:33:27Z 2023-04-06 2023-05 1567-1739 https://pubs.kist.re.kr/handle/201004/113777 On the basis of second-harmonic measurements, we separated the thermal effect from the spin-orbit torque in GeTe/NiFe bilayers. The damping-like torque and thermal effect terms are phenomenologically inseparable in the second-harmonic resistance. Several thermomagnetic effects, such as the Nernst effect and spin Seebeck effect, are also mixed in the second-harmonic signals. By exploiting the different external magnetic field dependence of these terms, we extracted the noticeable thermal-related terms. In particular, the ordinary Nernst effect is dominant over other thermal effects such as the anomalous Nernst effect and the spin Seebeck effect in a GeTe/NiFe structure. Furthermore, we have investigated the dependence of the ordinary Nernst effect on the temperature and the electric field applied to GeTe channel. These findings reveal that, in a bulk Rashba device, the thermal effect must be considered when attempting to control the spin-orbit-torque-induced switching. English Elsevier Observation of the Nernst effect in a GeTe/NiFe structure Article 10.1016/j.cap.2023.02.008 1 Current Applied Physics, v.49, pp.12 - 17 Current Applied Physics 49 12 17 Y scie scopus kci 000948712000001 2-s2.0-85148875918 Materials Science, Multidisciplinary Physics, Applied Materials Science Physics Article SPIN PERFORMANCE Spin-orbit torque Thermomagnetic effect Rashba effect GeTe Ordinary nernst effect