Abstract
We study theoretically the charge transport pumped by magnetization dynamics through epitaxial FIF and FNIF magnetic tunnel junctions (F, ferromagnet; I, insulator; N, normal metal). We predict a small but measurable dc pumping voltage under ferromagnetic resonance conditions for collinear magnetization configurations, which may change sign as a function of barrier parameters. A much larger ac pumping voltage is expected when the magnetizations are at right angles. Quantum size effects are predicted for an FNIF structure as a function of the normal layer thickness.
| Original language | English |
|---|---|
| Article number | 180407 |
| Journal | Physical Review B - Condensed Matter and Materials Physics |
| Volume | 77 |
| Issue number | 18 |
| DOIs | |
| Publication status | Published - 2008 May 22 |
| Externally published | Yes |
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics
Fingerprint Dive into the research topics of 'Charge pumping in magnetic tunnel junctions: Scattering theory'. Together they form a unique fingerprint.
Cite this
Xiao, J., Bauer, G. E. W., & Brataas, A. (2008). Charge pumping in magnetic tunnel junctions: Scattering theory. Physical Review B - Condensed Matter and Materials Physics, 77(18), [180407]. https://doi.org/10.1103/PhysRevB.77.180407