Abstract
That the magnetization of the free layer of a spin valve is being "measured" is reflected in the angular dependence of the torque transfer term, which then differs from that given by Sloncewski. The usual form of the Gilbert relaxation term is not consistent with the second law of thermodynamics. When the usual derivative is replaced by a "particle derivative", relaxation is consistent with this law. It is implied that static solutions in which relaxation balances the torque transfer term are possible. Discussed is the concept of a spin-motive-force arising from the non-conservative part of the Stern-Gerlach force. This gives a real meaning to the term "spin-battery" and a spin inductance.
| Original language | English (US) |
|---|---|
| Title of host publication | AIP Conference Proceedings |
| Pages | 1504-1505 |
| Number of pages | 2 |
| Volume | 850 |
| DOIs | |
| State | Published - 2006 |
| Event | LOW TEMPERATURE PHYSICS: 24th International Conference on Low Temperature Physics - LT24 - Orlando, FL, United States Duration: Aug 10 2006 → Oct 17 2006 |
Other
| Other | LOW TEMPERATURE PHYSICS: 24th International Conference on Low Temperature Physics - LT24 |
|---|---|
| Country | United States |
| City | Orlando, FL |
| Period | 8/10/06 → 10/17/06 |
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Keywords
- Measurements
- Spin valve
- Spin-battery
- Spin-motive-force
- Spintronics
ASJC Scopus subject areas
- Physics and Astronomy(all)
Cite this
Spinmotive forces and torque transfer in spin valves. / Barnes, Stewart.
AIP Conference Proceedings. Vol. 850 2006. p. 1504-1505.Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
}
TY - GEN
T1 - Spinmotive forces and torque transfer in spin valves
AU - Barnes, Stewart
PY - 2006
Y1 - 2006
N2 - That the magnetization of the free layer of a spin valve is being "measured" is reflected in the angular dependence of the torque transfer term, which then differs from that given by Sloncewski. The usual form of the Gilbert relaxation term is not consistent with the second law of thermodynamics. When the usual derivative is replaced by a "particle derivative", relaxation is consistent with this law. It is implied that static solutions in which relaxation balances the torque transfer term are possible. Discussed is the concept of a spin-motive-force arising from the non-conservative part of the Stern-Gerlach force. This gives a real meaning to the term "spin-battery" and a spin inductance.
AB - That the magnetization of the free layer of a spin valve is being "measured" is reflected in the angular dependence of the torque transfer term, which then differs from that given by Sloncewski. The usual form of the Gilbert relaxation term is not consistent with the second law of thermodynamics. When the usual derivative is replaced by a "particle derivative", relaxation is consistent with this law. It is implied that static solutions in which relaxation balances the torque transfer term are possible. Discussed is the concept of a spin-motive-force arising from the non-conservative part of the Stern-Gerlach force. This gives a real meaning to the term "spin-battery" and a spin inductance.
KW - Measurements
KW - Spin valve
KW - Spin-battery
KW - Spin-motive-force
KW - Spintronics
UR - http://www.scopus.com/inward/record.url?scp=33947505122&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=33947505122&partnerID=8YFLogxK
U2 - 10.1063/1.2355274
DO - 10.1063/1.2355274
M3 - Conference contribution
SN - 0735403473
SN - 9780735403475
VL - 850
SP - 1504
EP - 1505
BT - AIP Conference Proceedings
ER -