Non-local magnetoresistance in YIG/Pt nanostructures

By S. Goennenwein, R. Schlitz, M. Pernpeintner, M. Althammer, R. Gross, H. Huebl. 2015

156 citations recorded by the source corpus.

We study the local and non-local magnetoresistance of thin Pt strips deposited onto yttrium iron garnet. The local magnetoresistive response, inferred from the voltage drop measured along one given Pt strip upon current-biasing it, shows the characteristic magnetization orientation dependence of the spin Hall magnetoresistance. We simultaneously also record the non-local voltage appearing along a second, electrically isolated, Pt strip, separated from the current carrying one by a gap of a few 100 nm. The corresponding non-local magnetoresistance exhibits the symmetry expected for a magnon spin accumulation-driven process, confirming the results recently put forward by Cornelissen et al. [1]. Our magnetotransport data, taken at a series of different temperatures as a function of magnetic field orientation, rotating the externally applied field in three mutually orthogonal planes, show that the mechanisms behind the spin Hall and the non-local magnetoresistance are qualitatively different. In particular, the non-local magnetoresistance vanishes at liquid Helium temperatures, while the spin Hall magnetoresistance prevails.

Subfields: Artificial Intelligence, Atomic and Molecular Physics, and Optics, Electrical and Electronic Engineering

View Paper: https://www.semanticscholar.org/paper/629e7ec1af85b6d3ba7540ea7627e0d731ce8dde

How researchers see this paper

The researchers whose trusted networks rank it highest, strongest advocate first. Every researcher gets a different order.

In Artificial Intelligence

1. J. van den Brink
2. Vincent Garcia
3. Manuel Bibes

In Atomic and Molecular Physics, and Optics

1. Pietro Gambardella
2. T. Jungwirth
3. J. Sinova
4. A. Manchon
5. I. Miron
6. Kevin Garello
7. A. Thiaville
8. J. Železný

In Electrical and Electronic Engineering

1. Uwe Schroeder
2. Thomas Mikolajick
3. I. Fina
4. J. Sinova
5. Vincent Garcia
6. A. Manchon
7. T. Jungwirth
8. J. MacManus‐Driscoll

Citations in the corpus

• Current-induced spin-orbit torques in ferromagnetic and antiferromagnetic systems (2018, background): “2012) and interconversion of electric and magnon currents (Cornelissen et al., 2015; Goennenwein et al., 2015; Kajiwara et al., 2010) in single-layer ferromagnets and ferrimagnets.”
• Spin insulatronics (2020, result): “[174] also found the symmetry expected for a magnon spin-accumulation-driven proces and confirmed the results in Ref.”
• Magnetization oscillations and waves driven by pure spin currents (2016, background): “On the other hand, interaction of spin current withmagnetization is one of very few mechanisms that allow one to controllably excite suchmagnons and explore their propagation characteristics [150,176].”
• Magnon Transport in Quasi-Two-Dimensional van der Waals Antiferromagnets (2019, methodology): “The magnons are generated in quasi-2D van der Waals antiferromagnet MnPS3 under the left Pt electrode (magnon injector), and then diffuse towards the right Pt electrode (magnon detector) which detects the magnon-mediated spin current via inverse spin Hall effect of Pt in the nonlocal geometry [30-32”
• Towards Oxide Electronics: a Roadmap (2019, background): “While the theoretical prediction of MMR was pioneered by Zhang and Zhang [581,582] in 2012, the first experimental observation was reported in 2015 [535,536].”