Magnon planar Hall effect and anisotropic magnetoresistance in a magnetic insulator

Liu J, Cornelissen LJ, Shan J, Kuschel T, van Wees BJ (2017)
Physical Review B 95(14): 140402(R).

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Electrical resistivities can be different for charge currents traveling parallel or perpendicular to the magnetization in magnetically ordered conductors or semiconductors, resulting in the well-known planar Hall effect and anisotropic magnetoresistance. Here we study the analogous anisotropic magnetotransport behavior for magnons in a magnetic insulator Y3Fe5O12. Electrical and thermal magnon injection, and electrical detection methods, are used at room temperature with transverse and longitudinal geometries to measure the magnon planar Hall effect and anisotropic magnetoresistance, respectively. We observe that the relative difference between magnon current conductivities parallel and perpendicular to the magnetization, with respect to the average magnon conductivity, i.e., ∣(σ^m_∥−σ^m_⊥)/σ^m_0∣, is approximately 5% with the majority of the measured devices showing σ^m_⊥>σ^m_∥.
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Liu J, Cornelissen LJ, Shan J, Kuschel T, van Wees BJ. Magnon planar Hall effect and anisotropic magnetoresistance in a magnetic insulator. Physical Review B. 2017;95(14): 140402(R).
Liu, J., Cornelissen, L. J., Shan, J., Kuschel, T., & van Wees, B. J. (2017). Magnon planar Hall effect and anisotropic magnetoresistance in a magnetic insulator. Physical Review B, 95(14), 140402(R). doi:10.1103/physrevb.95.140402
Liu, J., Cornelissen, L. J., Shan, J., Kuschel, T., and van Wees, B. J. (2017). Magnon planar Hall effect and anisotropic magnetoresistance in a magnetic insulator. Physical Review B 95:140402(R).
Liu, J., et al., 2017. Magnon planar Hall effect and anisotropic magnetoresistance in a magnetic insulator. Physical Review B, 95(14): 140402(R).
J. Liu, et al., “Magnon planar Hall effect and anisotropic magnetoresistance in a magnetic insulator”, Physical Review B, vol. 95, 2017, : 140402(R).
Liu, J., Cornelissen, L.J., Shan, J., Kuschel, T., van Wees, B.J.: Magnon planar Hall effect and anisotropic magnetoresistance in a magnetic insulator. Physical Review B. 95, : 140402(R) (2017).
Liu, J., Cornelissen, L. J., Shan, J., Kuschel, Timo, and van Wees, B. J. “Magnon planar Hall effect and anisotropic magnetoresistance in a magnetic insulator”. Physical Review B 95.14 (2017): 140402(R).
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