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Interaction between Thin Films of Zinc and (100) GaAs

100%

Kamińska E., Piotrowska A., Żarecka R., Mizera E.

Acta Physica Polonica A

1993

vol. 84

issue 3

527-529

Interfacial reactions between thin films of Zn and GaAs were studied by means of transmission electron microscopy. Low-temperature interaction is governed by the penetration of Zn into the native oxide layer at the metal/GaAs interface. At 360°C the formation of Zn_{3}As_{2} phase, highly oriented with respect to the (100) substrate takes place.

Atomic Scale Morphology of Thin Au(Zn)/GaAs Ohmic Contacts

76%

Kamińska E., Piotrowska A., Żarecka R., Barcz A., Mizera E., Kwiatkowski S.

Acta Physica Polonica A

1992

vol. 82

issue 5

853-856

Very thin Au(Zn) contacts to p-GaAs were studied by means of transmission electron microscopy and secondary ion mass spectrometry. It was found that such contacts when cap annealed became ohmic, even though the reaction between the metallization and GaAs is confined to a very close vicinity of the interface.

Second Harmonic Generation in Spin-Glass Microstructures and Fabrication of Microstructures in IV-VI Epilayers

52%

Grabecki G., Dietl T., Cieplak M., Plesiewicz W., Lenard A., Skośkiewicz T., Kamińska E., Piotrowska A., Żarecka R., Springholz G., Bauer G.

Acta Physica Polonica A

1993

vol. 84

issue 4

781-784

We studied magnetoconductance of two different mesoscopic systems: microregions containing two-dimensional electron gas adjacent to a grain-boundary plane in bicrystals of Hg_{0.79}Cd_{0.19}Mn_{0.02}Te and photolithographically patterned microstructures of Pb_{1-x}Mn_{x}Se. In both systems universal conductance fluctuations and generation of the second-harmonic voltage were observed at T ≤ 1 K. Moreover, in the former system the second harmonic signal exhibited distinct rise when the sample was cooled below the spin-glass freezing temperature (100 mK).

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3 Acta Physica Polonica A

2 1993

1 1992

3 Kamińska E.

3 Piotrowska A.

3 Żarecka R.

2 Mizera E.

1 Barcz A.

1 Bauer G.

1 Cieplak M.

1 Dietl T.

1 Grabecki G.

1 Kwiatkowski S.

1 Lenard A.

1 Plesiewicz W.

1 Skośkiewicz T.

1 Springholz G.

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Interaction between Thin Films of Zinc and (100) GaAs

Atomic Scale Morphology of Thin Au(Zn)/GaAs Ohmic Contacts

Second Harmonic Generation in Spin-Glass Microstructures and Fabrication of Microstructures in IV-VI Epilayers