Details
| Original language | English |
|---|---|
| Pages (from-to) | 285-297 |
| Number of pages | 13 |
| Journal | Semiconductor Science and Technology |
| Volume | 17 |
| Issue number | 4 |
| Publication status | Published - 20 Mar 2002 |
Abstract
We discuss advances, advantages and problems of spintronics through the example of a semiconductor laser whose emission intensity and polarization are modulated by the spin orientation of electrons. We show that spin transport should be feasible at room temperature and present possible concepts and first results concerning spin injection at high temperatures. Finally, we describe the coherent dynamics of coupled electron and hole spins in a quantum mechanical picture and measure the magnetic field-induced dynamics of localized excitons in a 3 nm GaAs quantum well. The system is capable of performing a quantum controlled not operation (CNOT), which realizes a basic two-qubit operation of quantum information processing in a semiconductor nanostructure.
ASJC Scopus subject areas
- Materials Science(all)
- Electronic, Optical and Magnetic Materials
- Physics and Astronomy(all)
- Condensed Matter Physics
- Engineering(all)
- Electrical and Electronic Engineering
- Materials Science(all)
- Materials Chemistry
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In: Semiconductor Science and Technology, Vol. 17, No. 4, 20.03.2002, p. 285-297.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Spin injection, spin transport and spin coherence
AU - Oestreich, Michael
AU - Bender, Michael
AU - Hübner, Jens
AU - Hägele, Daniel
AU - Rühle, W. W.
AU - Hartmann, Th
AU - Klar, P. J.
AU - Heimbrodt, W.
AU - Lampalzer, M.
AU - Volz, K.
AU - Stolz, W.
PY - 2002/3/20
Y1 - 2002/3/20
N2 - We discuss advances, advantages and problems of spintronics through the example of a semiconductor laser whose emission intensity and polarization are modulated by the spin orientation of electrons. We show that spin transport should be feasible at room temperature and present possible concepts and first results concerning spin injection at high temperatures. Finally, we describe the coherent dynamics of coupled electron and hole spins in a quantum mechanical picture and measure the magnetic field-induced dynamics of localized excitons in a 3 nm GaAs quantum well. The system is capable of performing a quantum controlled not operation (CNOT), which realizes a basic two-qubit operation of quantum information processing in a semiconductor nanostructure.
AB - We discuss advances, advantages and problems of spintronics through the example of a semiconductor laser whose emission intensity and polarization are modulated by the spin orientation of electrons. We show that spin transport should be feasible at room temperature and present possible concepts and first results concerning spin injection at high temperatures. Finally, we describe the coherent dynamics of coupled electron and hole spins in a quantum mechanical picture and measure the magnetic field-induced dynamics of localized excitons in a 3 nm GaAs quantum well. The system is capable of performing a quantum controlled not operation (CNOT), which realizes a basic two-qubit operation of quantum information processing in a semiconductor nanostructure.
UR - http://www.scopus.com/inward/record.url?scp=0347858383&partnerID=8YFLogxK
U2 - 10.1088/0268-1242/17/4/302
DO - 10.1088/0268-1242/17/4/302
M3 - Article
AN - SCOPUS:0347858383
VL - 17
SP - 285
EP - 297
JO - Semiconductor Science and Technology
JF - Semiconductor Science and Technology
SN - 0268-1242
IS - 4
ER -