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dc effect in a single micrometric spin valve sensor under ferromagnetic resonance
- Source :
- Applied Physics Letters, Applied Physics Letters, American Institute of Physics, 2008, 92 (9), pp.092503. ⟨10.1063/1.2885088⟩, Applied Physics Letters, 2008, 92 (9), pp.092503. ⟨10.1063/1.2885088⟩
- Publication Year :
- 2008
- Publisher :
- AIP Publishing, 2008.
-
Abstract
- We report on the observation of an increase in the dc voltage of a micrometric spin valve sensor designed as a yoke shape when the ferromagnetic resonance of the free layer is excited by a microwave magnetic field. We show that this effect is a sum of a heating effect and the coupling between the current induced in the sensor by the microwave magnetic field and the giant magnetoresistance (GMR) effect. By making explicit the expression of the GMR effect when submitted to an ac magnetic excitation, we show how to separate both effects.
- Subjects :
- Materials science
Physics and Astronomy (miscellaneous)
Condensed matter physics
Spin polarization
Spin valve
Magnetic resonance force microscopy
Giant magnetoresistance
02 engineering and technology
Condensed Matter::Mesoscopic Systems and Quantum Hall Effect
021001 nanoscience & nanotechnology
01 natural sciences
Ferromagnetic resonance
Magnetic field
Condensed Matter::Materials Science
[PHYS.COND.CM-GEN]Physics [physics]/Condensed Matter [cond-mat]/Other [cond-mat.other]
0103 physical sciences
010306 general physics
0210 nano-technology
ComputingMilieux_MISCELLANEOUS
Microwave
Excitation
Subjects
Details
- ISSN :
- 10773118 and 00036951
- Volume :
- 92
- Database :
- OpenAIRE
- Journal :
- Applied Physics Letters
- Accession number :
- edsair.doi.dedup.....aba426d5785e1b99d1e74f21306f49cc
- Full Text :
- https://doi.org/10.1063/1.2885088