Room-Temperature Antiferromagnetic Resonance and Inverse Spin-Hall Voltage in Canted Antiferromagnets

Boventer , Simensen HT, Anane A, Klaui M, Brataas A, Lebrun R (2021)

Publication Type: Journal article

Publication year: 2021

Journal

Physical Review Letters American Physical Society

Book Volume: 126

Article Number: 187201

Journal Issue: 18

DOI: 10.1103/PhysRevLett.126.187201

Abstract

We study theoretically and experimentally the spin pumping signals induced by the resonance of canted antiferromagnets with Dzyaloshinskii-Moriya interaction and demonstrate that they can generate easily observable inverse spin-Hall voltages. Using a bilayer of hematite/heavy metal as a model system, we measure at room temperature the antiferromagnetic resonance and an associated inverse spin-Hall voltage, as large as in collinear antiferromagnets. As expected for coherent spin pumping, we observe that the sign of the inverse spin-Hall voltage provides direct information about the mode handedness as deduced by comparing hematite, chromium oxide and the ferrimagnet yttrium-iron garnet. Our results open new means to generate and detect spin currents at terahertz frequencies by functionalizing antiferromagnets with low damping and canted moments.

Involved external institutions

NTNU Trondheim - Norwegian University of Science and Technology NO Norway (NO) École Polytechnique - Université Paris-Saclay FR France (FR)

How to cite

APA:

Boventer, ., Simensen, H.T., Anane, A., Klaui, M., Brataas, A., & Lebrun, R. (2021). Room-Temperature Antiferromagnetic Resonance and Inverse Spin-Hall Voltage in Canted Antiferromagnets. Physical Review Letters, 126(18). https://doi.org/10.1103/PhysRevLett.126.187201

MLA:

Boventer, , et al. "Room-Temperature Antiferromagnetic Resonance and Inverse Spin-Hall Voltage in Canted Antiferromagnets." Physical Review Letters 126.18 (2021).

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