Title: Datta and Das, APL 56 665 1990
1SpinFET
Datta and Das, APL 56 665 (1990)
L
HEMT
2Schmidt et al, PRB 62 R4790 (2000)
Semiconductor Spin Polarization
Ferromagnet Spin Polarization
Ferromagnet Spin Polarization
3Hanbicki et al. APL 80 1240 (2002)
Tunnel injection
Faraday (PL)
p
n
4.5K
4Time-Resolved Faraday Rotation
Kikkawa et al, Science, 277 1284 (1997) ZnSe
Kikkawa et al, PRL 80 4313 GaAs
5Resonant Spin Amplification
Kikkawa et al, PRL 80 4313
- Spacing measures g
- Peak width measures T2
6Coherent Transfer of Spin across a Heterointerface
Malajovich, Kikkawa et al, PRL 84 1015 (2000)
rise
Probe _at_ ZnSe band-edge
Spins are from GaAs
7II-VI Spin LED
dSM300nm
Fielderling, et al, Nature 402 787 (1999)
dSM3nm
8III-V Spin LED
Ohno, et al, Nature 402 790 (1999)
9III-V Magnetic Semiconductor Ga1-xMnxAs
semiconducting
Matsukura, PRB 57 R2037 (1998)
X0.053
metal
metallic
10Semiconductor Magnetic Tunnel Junctions
Tanaka and Higo PRL 87 26602 (2001)
11Electrostatic Control of Ferromagnetism in
In1-xMnxAs