TY - JOUR
T1 - Spin injection into a two-dimensional electron gas using inter-digital-ferromagnetic contacts
AU - Hu, C. M.
AU - Nitta, J.
AU - Jensen, A.
AU - Hansen, J. B.
AU - Takayanagi, H.
AU - Matsuyama, T.
AU - Grundler, D.
AU - Meier, G.
AU - Heitmann, D.
AU - Merkt, U.
N1 - Funding Information:
We thank M. Johnson, P. Středa, G. Bastian, U. Rössler and M. Roukes for valuable discussions. This work is financially supported by the NEDO International Joint Research Grant, the BMBF through project 01BM905 and the DFG through SFB 508. JBH thanks the European Commission for a grant.
PY - 2002/1
Y1 - 2002/1
N2 - We present a model that describes the spin injection across a single interface with two electrodes. The spin-injection rate across a typical hybrid junction made of ferromagnet (FM) and a two-dimensional electron gas (2DEG) is found at the percentage level. We perform spin-injection-detection experiment on devices with two ferromagnetic contacts on a 2DEG confined in an InAs quantum well. A spin-injection rate of 4.5% is estimated from the measured magnetoresistance.
AB - We present a model that describes the spin injection across a single interface with two electrodes. The spin-injection rate across a typical hybrid junction made of ferromagnet (FM) and a two-dimensional electron gas (2DEG) is found at the percentage level. We perform spin-injection-detection experiment on devices with two ferromagnetic contacts on a 2DEG confined in an InAs quantum well. A spin-injection rate of 4.5% is estimated from the measured magnetoresistance.
KW - Ferromagnet/semiconductor hybrid junction
KW - Magnetoresistance
KW - Spin injection
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U2 - 10.1016/S1386-9477(01)00293-4
DO - 10.1016/S1386-9477(01)00293-4
M3 - Conference article
AN - SCOPUS:0035239586
VL - 12
SP - 395
EP - 398
JO - Physica E: Low-Dimensional Systems and Nanostructures
JF - Physica E: Low-Dimensional Systems and Nanostructures
SN - 1386-9477
IS - 1-4
T2 - 14th International Conference on the
Y2 - 30 July 2001 through 3 August 2001
ER -