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Pulsed laser deposition of (Co, Fe)-doped ZnSnSb and MnGeSb thin films on silicon

Rusu M.I. 1 R Savastru 1 Dan Savastru 1 D Tensiu 1 C.R. Iordanescu 1 I.D Feraru 1 C.N. Zoita 1 R Notonier 2 Alain Tonetto 2 C. Chassigneux 3 O. Monnereau 4 Laurence Tortet 4 C.E.A Grigorescu 1
1 INOE - National Institute of Research and Development for Optoelectronics
2 AMU SCI - Aix-Marseille Université - Faculté des Sciences
3 LCP - Laboratoire Chimie Provence
4 MADIREL - Matériaux divisés, interfaces, réactivité, électrochimie
Abstract : Films of the material systems ZnSnSb and MnGeSb doped with Fe and Co respectively have been grown by pulsed laser deposition on silicon. Room temperature Hall effect measurements show that all Fe-doped PLD films are n-type whereas MnGeSb:Co ones are p-type. Carrier concentrations vary with film thickness, resulting in ∼1017–1018cm−3 for ZnSnSb:Fe and ∼1020–1021cm−3 for MnGeSb:Co films. Carrier mobilities are of the order 102 cm2/Vs in the MnGeSb:Co films and between 102 and 103 cm2/V s in ZnSnSb:Fe. Curie points above room temperature have been found for samples of both material systems.
Keywords : Diluted magnetic semiconductors PLD films ZnSnSb:Fe MnGeSb:(Co Fe)
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https://hal-amu.archives-ouvertes.fr/hal-01465985
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Submitted on : Monday, February 13, 2017 - 11:56:25 AM
Last modification on : Tuesday, October 19, 2021 - 10:59:25 PM

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UNIV-AMU | CNRS | INC-CNRS | MADIREL

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Rusu M.I., R Savastru, Dan Savastru, D Tensiu, C.R. Iordanescu, et al.. Pulsed laser deposition of (Co, Fe)-doped ZnSnSb and MnGeSb thin films on silicon. Applied Surface Science, Elsevier, 2013, 284, pp.950. ⟨10.1016/j.apsusc.2013.04.061⟩. ⟨hal-01465985⟩

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