Transport and ferromagnetism in InGaAs quantum well structures delta-doped with Mn

Journal Article · Sun Jul 15 04:00:00 EDT 2007 · Journal of Experimental and Theoretical Physics

DOI:https://doi.org/10.1134/S1063776107070400· OSTI ID:21075783

Kul'bachinskii, V A ^[1]; Danilov, Yu A; Zvonkov, B N ^[2]; Aronzon, B A; Davydov, A B; Ryl'kov, V V ^[3]

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1. Moscow State University (Russian Federation)
2. Nizhni Novgorod State University, Nizhni Novgorod Research Physicotechnical Institute (Russian Federation)
3. Russian Research Center 'Kurchatov Institute' (Russian Federation)

Samples containing InGaAs quantum wells with p-type conductivity delta-doped by Mn were synthesized and studied. Magnetic moment measurements on a SQUID magnetometer revealed the presence of ferromagnetism at temperatures T from 4.2 to 400 K. Anomalous Hall effect caused by additional sample magnetization was observed at temperatures of from about 30 to 80 K. The Shubnikov-de Haas effect was recorded at 4.2 K. Negative magnetoresistance changed sign for positive at T {approx} 30 K as the temperature increased.

• OSTI ID: 21075783
• Journal Information: Journal of Experimental and Theoretical Physics, Journal Name: Journal of Experimental and Theoretical Physics Journal Issue: 1 Vol. 105; ISSN JTPHES; ISSN 1063-7761
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
CHARGED-PARTICLE TRANSPORT
DOPED MATERIALS
FERROMAGNETISM
GALLIUM ARSENIDES
HALL EFFECT
INDIUM ARSENIDES
MAGNETIC MOMENTS
MAGNETIZATION
MAGNETOMETERS
MAGNETORESISTANCE
QUANTUM WELLS
SHUBNIKOV-DE HAAS EFFECT
SQUID DEVICES
TEMPERATURE DEPENDENCE
TEMPERATURE RANGE 0000-0013 K
TEMPERATURE RANGE 0013-0065 K
TEMPERATURE RANGE 0065-0273 K
TEMPERATURE RANGE 0273-0400 K