Unconventional spin-dependent thermopower in epitaxial Co2Ti0.6V0.4Sn0.75 Heusler film

Hu J, Niu J, Ernst B, Tu S, Hamzic A, Liu C, Zhang Y, Wu X, Felser C, Yu H (2019)

Publication Type: Journal article

Publication year: 2019

Journal

Solid State Communications Elsevier

Book Volume: 299

Article Number: 113661

DOI: 10.1016/j.ssc.2019.113661

Abstract

Spin-dependent thermoelectric transport properties have been experimentally studied on a micro-structured device based on epitaxially grown 75-nm-thick Co2Ti0.6V0.4Sn0.75 Heusler film with integrated heater and thermometers. The anomalous Nernst coefficient is found to be 0.5 μV/K at 50 K. Thermoelectric power in both longitudinal and transverse directions have been measured with magnetic field rotated in-plane. Asymmetric peaks and valleys are observed at particular in-plane field angle around 25 K. These anomalous peaks show novel magnetic hysteresis due to the interplay between the magnetization and the temperature gradient. These complex behaviors of thermoelectric effect during magnetization reversal still need to be understood.

Involved external institutions

Beihang University, Beijing University of Aeronautics and Astronautics (BUAA) / 北京航空航天大学

China (CN) Peking University (PKU) / 北京大学

China (CN) Max-Planck-Institut für Chemische Physik fester Stoffe (MPI CPfS) / Max Planck Institute for Chemical Physics of Solids

Germany (DE)

How to cite

APA:

Hu, J., Niu, J., Ernst, B., Tu, S., Hamzic, A., Liu, C.,... Yu, H. (2019). Unconventional spin-dependent thermopower in epitaxial Co2Ti0.6V0.4Sn0.75 Heusler film. Solid State Communications, 299. https://doi.org/10.1016/j.ssc.2019.113661

MLA:

Hu, Junfeng, et al. "Unconventional spin-dependent thermopower in epitaxial Co2Ti0.6V0.4Sn0.75 Heusler film." Solid State Communications 299 (2019).

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