TY - JOUR
T1 - Spin injection and detection experiment in a two dimensional electron gas with inter-digital-ferromagnetic contacts
AU - Nitta, Junsaku
AU - Hu, Can Ming
AU - Jensen, Ane
AU - Hansen, J. Bindslev
AU - Takayanagi, Hideaki
N1 - Funding Information:
We thank M. Johnson, P. Streda, G. Bastian, U. Rössler and M. Roukes for valuable discussions. This work was financially supported by the NEDO International Joint Research Grant. JBH thanks the European Commission for a grant.
PY - 2001/5
Y1 - 2001/5
N2 - Ferromagnetic contacts on a high-mobility two dimensional electron gas (2DEG) in a narrow gap semiconductor with strong spin-orbit interaction are used to investigate spin polarised electron transport. In ballistic samples, the predicted increase on the device resistance is observed when the injector/detector magnetisation configuration is switched from parallel to anti-parallel. Spin dephasing and spin precession effects are studied as functions of temperature and 2DEG channel length.
AB - Ferromagnetic contacts on a high-mobility two dimensional electron gas (2DEG) in a narrow gap semiconductor with strong spin-orbit interaction are used to investigate spin polarised electron transport. In ballistic samples, the predicted increase on the device resistance is observed when the injector/detector magnetisation configuration is switched from parallel to anti-parallel. Spin dephasing and spin precession effects are studied as functions of temperature and 2DEG channel length.
KW - Narrow gap semiconductors
KW - Spin injection
KW - Spin-orbit interaction
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U2 - 10.1016/S1386-9477(01)00139-4
DO - 10.1016/S1386-9477(01)00139-4
M3 - Article
AN - SCOPUS:0035339365
VL - 10
SP - 467
EP - 471
JO - Physica E: Low-Dimensional Systems and Nanostructures
JF - Physica E: Low-Dimensional Systems and Nanostructures
SN - 1386-9477
IS - 1-3
ER -