Increased mobility anisotropy in selectively doped AlxGa1−xAs/GaAs heterostructures with high electron densities

Reuter, D.; Versen, Martin; Schneider, M. D.; Wieck, A. D.

doi:10.1063/1.373660

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Cited by 5 publications

(3 citation statements)

References 18 publications

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“…Our anisotropies are comparable to or somewhat larger than those typically observed for similar samples. 23 Their origins and the relation to the second subband occupation are still under discussion. 23 Magnetoresistance traces for the two directions are shown in Figs.…”

Section: Fig 2 ͑A͒mentioning

confidence: 99%

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Anisotropic Corbino magnetothermopower in a quantum Hall system

Zalinge

Heijden

2003

Phys. Rev. B

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Section: Fig 2 ͑A͒mentioning

confidence: 99%

“…23 Their origins and the relation to the second subband occupation are still under discussion. 23 Magnetoresistance traces for the two directions are shown in Figs. 5͑a͒ and 5͑b͒͒.…”

Section: Fig 2 ͑A͒mentioning

confidence: 99%

Anisotropic Corbino magnetothermopower in a quantum Hall system

Zalinge

Heijden

2003

Phys. Rev. B

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“…This background is a smooth function, about 50 times larger than the magnetization of the 2DEG, which means the de Haas-van Alphen oscillations are immediately visible. The substrate side of the sample, which was grown by molecular beam epitaxy, 12 was polished for reflection. To prevent the laser from having an unwanted effect on the sample, such as heating, the intensity was reduced by 60% with a filter.…”

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confidence: 99%

A multipurpose torsional magnetometer with optical detection

Schaapman

Christianen

Maan

et al. 2002

Applied Physics Letters

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We have developed a sensitive, multipurpose torsional magnetometer with optical detection of the torque. The use of a feedback system with a current coil mounted with the sample allows direct, quantitative determination of the magnetization with a sensitivity of 10−12 J/T in a Bitter-magnet and 2×10−13 J/T at 15 T in a superconducting magnet. The system can be used over a wide range of temperatures and up to high magnetic fields. To demonstrate the sensitivity and versatility of our magnetometer, we present magnetization measurements of a multisubband two-dimensional electron gas (3×1011 spins) and of a 0.13 mg crystal of the organic conductor κ-(BEDT-TTF)2Cu(NCS)2.

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