Abstract
A spin current carries spin angular momentum in a spintronics device. Its interaction with a magnetic nanostructure not only gives rise to spin-dependent transport but also excites dynamics in the magnetic state. Unlike the spin-polarized electrical current, a pure spin current is useful for both fundamental and applied research because neither Oersted fields nor electrical current-related spurious effects are produced. Nonlocal electrical spin injection is a feasible way to produce the pure spin current. Here we demonstrate that the nonlocal spin valve signal is increased by an order of magnitude by improving the interface quality in a new device structure using a clean, in situ fabrication process. The generated pure spin current enables the magnetization reversal of a nanomagnet as efficiently as electrical current-induced magnetization switching. These results will open the door towards the realization of a pure-spin-current-driven device.
| Original language | English |
|---|---|
| Title of host publication | Spintronics |
| Volume | 7036 |
| DOIs | |
| Publication status | Published - Nov 24 2008 |
| Externally published | Yes |
| Event | Spintronics - San Diego, CA, United States Duration: Aug 10 2008 → Aug 14 2008 |
Other
| Other | Spintronics |
|---|---|
| Country | United States |
| City | San Diego, CA |
| Period | 8/10/08 → 8/14/08 |
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All Science Journal Classification (ASJC) codes
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics
- Computer Science Applications
- Applied Mathematics
- Electrical and Electronic Engineering
Cite this
Pure spin-current-induced magnetization switching. / Yang, T.; Kimura, Takashi; Laloë, J. B.; Otani, Y.
Spintronics. Vol. 7036 2008. 70361B.Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
}
TY - GEN
T1 - Pure spin-current-induced magnetization switching
AU - Yang, T.
AU - Kimura, Takashi
AU - Laloë, J. B.
AU - Otani, Y.
PY - 2008/11/24
Y1 - 2008/11/24
N2 - A spin current carries spin angular momentum in a spintronics device. Its interaction with a magnetic nanostructure not only gives rise to spin-dependent transport but also excites dynamics in the magnetic state. Unlike the spin-polarized electrical current, a pure spin current is useful for both fundamental and applied research because neither Oersted fields nor electrical current-related spurious effects are produced. Nonlocal electrical spin injection is a feasible way to produce the pure spin current. Here we demonstrate that the nonlocal spin valve signal is increased by an order of magnitude by improving the interface quality in a new device structure using a clean, in situ fabrication process. The generated pure spin current enables the magnetization reversal of a nanomagnet as efficiently as electrical current-induced magnetization switching. These results will open the door towards the realization of a pure-spin-current-driven device.
AB - A spin current carries spin angular momentum in a spintronics device. Its interaction with a magnetic nanostructure not only gives rise to spin-dependent transport but also excites dynamics in the magnetic state. Unlike the spin-polarized electrical current, a pure spin current is useful for both fundamental and applied research because neither Oersted fields nor electrical current-related spurious effects are produced. Nonlocal electrical spin injection is a feasible way to produce the pure spin current. Here we demonstrate that the nonlocal spin valve signal is increased by an order of magnitude by improving the interface quality in a new device structure using a clean, in situ fabrication process. The generated pure spin current enables the magnetization reversal of a nanomagnet as efficiently as electrical current-induced magnetization switching. These results will open the door towards the realization of a pure-spin-current-driven device.
UR - http://www.scopus.com/inward/record.url?scp=56249115355&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=56249115355&partnerID=8YFLogxK
U2 - 10.1117/12.793903
DO - 10.1117/12.793903
M3 - Conference contribution
AN - SCOPUS:56249115355
SN - 9780819472564
VL - 7036
BT - Spintronics
ER -