Spin-polarized Weyl cones and giant anomalous Nernst effect in ferromagnetic Heusler films

Spin-polarized Weyl cones and giant anomalous Nernst effect in ferromagnetic Heusler films

Topological Weyl semimetals are promising materials for achieving large anomalous Hall and Nernst effects needed in magnetic and heat flux sensors. Here, the authors visualize the spin-polarized Weyl cone and surface states of ferromagnetic Co2MnGa films, finding a high Nernst thermopower of 6.2 μVK...

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Autores principales: Kazuki Sumida, Yuya Sakuraba, Keisuke Masuda, Takashi Kono, Masaaki Kakoki, Kazuki Goto, Weinan Zhou, Koji Miyamoto, Yoshio Miura, Taichi Okuda, Akio Kimura
Formato: article
Lenguaje:EN
Publicado: Nature Portfolio 2020
Materias:
Materials of engineering and construction. Mechanics of materials
TA401-492
Acceso en línea:https://doaj.org/article/4a69554923ab4f44b413c5da737150b8
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Sumario:Topological Weyl semimetals are promising materials for achieving large anomalous Hall and Nernst effects needed in magnetic and heat flux sensors. Here, the authors visualize the spin-polarized Weyl cone and surface states of ferromagnetic Co2MnGa films, finding a high Nernst thermopower of 6.2 μVK−1.

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