Journal article
Theory of spin-coherent electrical transport through a defect spin state in a metal/insulator/ferromagnet tunnel junction undergoing ferromagnetic resonance
Physical review. B, Vol.98(3), p.035412
07/2018
DOI: 10.1103/PhysRevB.98.035412
Abstract
We describe the coherent dynamics of electrical transport through a localized spin-dependent state, such as is associated with a defect spin, at the interface of a ferromagnet and a nonmagnetic material during ferromagnetic resonance. As the ferromagnet magnetic moment precesses, charge carriers are dynamically spin filtered by the localized state, leading to a dynamic spin accumulation on the defect. Local effective magnetic fields modify the precession of a spin on the defect, which also modifies the time-integrated total charge current through the defect. We thus identify a form of current-detected spin resonance that reveals the local magnetic environment of a carrier spin located at a defect, and thus potentially the defect's identity.
Details
- Title: Subtitle
- Theory of spin-coherent electrical transport through a defect spin state in a metal/insulator/ferromagnet tunnel junction undergoing ferromagnetic resonance
- Creators
- N. J Harmon - University of IowaM. E Flatté - University of Iowa
- Resource Type
- Journal article
- Publication Details
- Physical review. B, Vol.98(3), p.035412
- DOI
- 10.1103/PhysRevB.98.035412
- ISSN
- 2469-9950
- eISSN
- 2469-9969
- Grant note
- DOI: 10.13039/100000015, name: U.S. Department of Energy; DOI: 10.13039/100006151, name: Basic Energy Sciences; DOI: 10.13039/100013055, name: Division of Materials Sciences and Engineering, award: DE-SC0016447
- Language
- English
- Date published
- 07/2018
- Academic Unit
- Electrical and Computer Engineering; Physics and Astronomy
- Record Identifier
- 9984199936102771
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