High-temperature magnetism and microstructure of a semiconducting ferromagnetic (GaSb)1−x(MnSb)x alloy
We have studied the properties of relatively thick (about 120 nm) magnetic composite films grown by pulsed laser deposition using the eutectic compound (GaSb)0.59(MnSb)0.41 as target for sputtering. For the studied films we have observed ferromagnetism and an anomalous Hall effect above room tempera...
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doaj-1fdfe5101e2243e0aefff1b56f745faa2020-11-24T23:51:20ZengBeilstein-InstitutBeilstein Journal of Nanotechnology2190-42862018-09-01912457246510.3762/bjnano.9.2302190-4286-9-230High-temperature magnetism and microstructure of a semiconducting ferromagnetic (GaSb)1−x(MnSb)x alloyLeonid N. Oveshnikov0Elena I. Nekhaeva1Alexey V. Kochura2Alexander B. Davydov3Mikhail A. Shakhov4Sergey F. Marenkin5Oleg A. Novodvorskii6Alexander P. Kuzmenko7Alexander L. Vasiliev8Boris A. Aronzon9Erkki Lahderanta10National Research Center ”Kurchatov Institute”, 123182 Moscow, Russian FederationNational Research Center ”Kurchatov Institute”, 123182 Moscow, Russian FederationSouth-West State University, 305040 Kursk, Russian FederationP.N. Lebedev Physical Institute, Russian Academy of Sciences, 119991 Moscow, Russian FederationLappeenranta University of Technology, 53850 Lappeenranta, FinlandKurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences, 119991 Moscow, Russian FederationInstitute on Laser and Information Technologies, Russian Academy of Sciences, 140700 Shatura, Moscow Region, Russian FederationSouth-West State University, 305040 Kursk, Russian FederationNational Research Center ”Kurchatov Institute”, 123182 Moscow, Russian FederationNational Research Center ”Kurchatov Institute”, 123182 Moscow, Russian FederationLappeenranta University of Technology, 53850 Lappeenranta, FinlandWe have studied the properties of relatively thick (about 120 nm) magnetic composite films grown by pulsed laser deposition using the eutectic compound (GaSb)0.59(MnSb)0.41 as target for sputtering. For the studied films we have observed ferromagnetism and an anomalous Hall effect above room temperature, confirming the presence of spin-polarized carriers. Electron microscopy, atomic and magnetic force microscopy results suggest that the films under study have a homogenous columnar structure in the bulk while MnSb inclusions accumulate near the surface. This is in good agreement with the high mobility values of charge carriers. Based on our data we conclude that the magnetic and magnetotransport properties of the films at room temperature are defined by the MnSb inclusions.https://doi.org/10.3762/bjnano.9.230anomalous Hall effecthigh-temperature ferromagnetismnanostructured materialsthin films |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Leonid N. Oveshnikov Elena I. Nekhaeva Alexey V. Kochura Alexander B. Davydov Mikhail A. Shakhov Sergey F. Marenkin Oleg A. Novodvorskii Alexander P. Kuzmenko Alexander L. Vasiliev Boris A. Aronzon Erkki Lahderanta |
spellingShingle |
Leonid N. Oveshnikov Elena I. Nekhaeva Alexey V. Kochura Alexander B. Davydov Mikhail A. Shakhov Sergey F. Marenkin Oleg A. Novodvorskii Alexander P. Kuzmenko Alexander L. Vasiliev Boris A. Aronzon Erkki Lahderanta High-temperature magnetism and microstructure of a semiconducting ferromagnetic (GaSb)1−x(MnSb)x alloy Beilstein Journal of Nanotechnology anomalous Hall effect high-temperature ferromagnetism nanostructured materials thin films |
author_facet |
Leonid N. Oveshnikov Elena I. Nekhaeva Alexey V. Kochura Alexander B. Davydov Mikhail A. Shakhov Sergey F. Marenkin Oleg A. Novodvorskii Alexander P. Kuzmenko Alexander L. Vasiliev Boris A. Aronzon Erkki Lahderanta |
author_sort |
Leonid N. Oveshnikov |
title |
High-temperature magnetism and microstructure of a semiconducting ferromagnetic (GaSb)1−x(MnSb)x alloy |
title_short |
High-temperature magnetism and microstructure of a semiconducting ferromagnetic (GaSb)1−x(MnSb)x alloy |
title_full |
High-temperature magnetism and microstructure of a semiconducting ferromagnetic (GaSb)1−x(MnSb)x alloy |
title_fullStr |
High-temperature magnetism and microstructure of a semiconducting ferromagnetic (GaSb)1−x(MnSb)x alloy |
title_full_unstemmed |
High-temperature magnetism and microstructure of a semiconducting ferromagnetic (GaSb)1−x(MnSb)x alloy |
title_sort |
high-temperature magnetism and microstructure of a semiconducting ferromagnetic (gasb)1−x(mnsb)x alloy |
publisher |
Beilstein-Institut |
series |
Beilstein Journal of Nanotechnology |
issn |
2190-4286 |
publishDate |
2018-09-01 |
description |
We have studied the properties of relatively thick (about 120 nm) magnetic composite films grown by pulsed laser deposition using the eutectic compound (GaSb)0.59(MnSb)0.41 as target for sputtering. For the studied films we have observed ferromagnetism and an anomalous Hall effect above room temperature, confirming the presence of spin-polarized carriers. Electron microscopy, atomic and magnetic force microscopy results suggest that the films under study have a homogenous columnar structure in the bulk while MnSb inclusions accumulate near the surface. This is in good agreement with the high mobility values of charge carriers. Based on our data we conclude that the magnetic and magnetotransport properties of the films at room temperature are defined by the MnSb inclusions. |
topic |
anomalous Hall effect high-temperature ferromagnetism nanostructured materials thin films |
url |
https://doi.org/10.3762/bjnano.9.230 |
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