Spin Hall magnetoimpedance
| Autor: | Hans Huebl, Rudolf Gross, Johannes Lotze, Sebastian T. B. Goennenwein |
|---|---|
| Rok vydání: | 2014 |
| Předmět: |
Physics
Condensed Matter - Mesoscale and Nanoscale Physics Magnetoresistance Condensed matter physics Spin polarization Bilayer Thermal Hall effect FOS: Physical sciences Quantum Hall effect Condensed Matter::Mesoscopic Systems and Quantum Hall Effect Condensed Matter Physics Electronic Optical and Magnetic Materials Condensed Matter::Materials Science Magnetization Ferrimagnetism Mesoscale and Nanoscale Physics (cond-mat.mes-hall) Spin Hall effect Condensed Matter::Strongly Correlated Electrons |
| Zdroj: | Physical Review B. 90 |
| ISSN: | 1550-235X 1098-0121 |
| DOI: | 10.1103/physrevb.90.174419 |
| Popis: | The recently discovered spin Hall magnetoresistance effect electrically probes pure spin current flow across a ferrimagnetic insulator/normal metal bilayer interface. While usually the DC electrical resistance of the bilayer is measured as a function of the magnetization orientation in the magnetic insulator, we here present magnetoimpedance measurements using bias currents with frequencies up to several GHz. We find that the spin Hall magnetoresistance effect persists up to frequencies of at least 4 GHz, enabling a fast readout of the magnetization direction in magnetic insulator/normal metal bilayers. Our data furthermore show that all interaction time constants relevant for the spin Hall magnetoresistance effect are shorter than 40 ps. 6 pages, 3 figures |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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