Low-temperature magnetoresistance of GaSb whiskers
Transverse and longitudinal magnetoresistancies in n-type GaSb whiskers with different doping concentration (Te) in the vicinity to the metal-insulator transition (MIT) from metal side of the transition were studied in the temperature range 1.5–60 K and magnetic field 0–14 T. Shubnikov-de Haas oscil...
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| Published in: | Физика низких температур |
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| Date: | 2017 |
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Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України
2017
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| Online Access: | https://nasplib.isofts.kiev.ua/handle/123456789/129503 |
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| Journal Title: | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| Cite this: | Low-temperature magnetoresistance of GaSb whiskers / A. Druzhinin, I. Ostrovskii, Yu. Khoverko, N. Liakh-Kaguy // Физика низких температур. — 2017. — Т. 43, № 6. — С. 871-878. — Бібліогр.: 33 назв. — англ. |
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Druzhinin, A. Ostrovskii, I. Khoverko, Yu. Liakh-Kaguy, N. 2018-01-19T20:20:23Z 2018-01-19T20:20:23Z 2017 Low-temperature magnetoresistance of GaSb whiskers / A. Druzhinin, I. Ostrovskii, Yu. Khoverko, N. Liakh-Kaguy // Физика низких температур. — 2017. — Т. 43, № 6. — С. 871-878. — Бібліогр.: 33 назв. — англ. 0132-6414 PACS: 73.43.Qt, 72.15.Rn, 71.30.+h, 72.20.My https://nasplib.isofts.kiev.ua/handle/123456789/129503 Transverse and longitudinal magnetoresistancies in n-type GaSb whiskers with different doping concentration (Te) in the vicinity to the metal-insulator transition (MIT) from metal side of the transition were studied in the temperature range 1.5–60 K and magnetic field 0–14 T. Shubnikov-de Haas oscillations in GaSb whiskers at low temperatures were revealed in magnetic field range 2–12 T. The oscillation period 0.025 T⁻¹ was found at various doping concentration in GaSb whiskers. The effective mass of electrons m c = 0.041 m ₀ and Dingle temperature of about 7.5 K were found in GaSb whiskers with impurity concentration in the vicinity to MIT. The presence of negative magnetoresistance in GaSb whiskers with the impurity concentration in the nearest approximation to MIT with resistivity ρ ₃₀₀ K = 0.0053 Ω cm was observed and associated with weak localization. Besides for the whiskers a resistance minimum was observed at temperature about 16 K that is connected with Kondo effect. Magnetoresistance studies of n-type conductivity for GaSb whiskers revealed the crossover from weak localization to antilocalization in the temperature range of 1.4–4.2 K and magnetic fields below 1 T. en Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України Физика низких температур Низкотемпеpатуpный магнетизм Low-temperature magnetoresistance of GaSb whiskers Article published earlier |
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Digital Library of Periodicals of National Academy of Sciences of Ukraine |
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| title |
Low-temperature magnetoresistance of GaSb whiskers |
| spellingShingle |
Low-temperature magnetoresistance of GaSb whiskers Druzhinin, A. Ostrovskii, I. Khoverko, Yu. Liakh-Kaguy, N. Низкотемпеpатуpный магнетизм |
| title_short |
Low-temperature magnetoresistance of GaSb whiskers |
| title_full |
Low-temperature magnetoresistance of GaSb whiskers |
| title_fullStr |
Low-temperature magnetoresistance of GaSb whiskers |
| title_full_unstemmed |
Low-temperature magnetoresistance of GaSb whiskers |
| title_sort |
low-temperature magnetoresistance of gasb whiskers |
| author |
Druzhinin, A. Ostrovskii, I. Khoverko, Yu. Liakh-Kaguy, N. |
| author_facet |
Druzhinin, A. Ostrovskii, I. Khoverko, Yu. Liakh-Kaguy, N. |
| topic |
Низкотемпеpатуpный магнетизм |
| topic_facet |
Низкотемпеpатуpный магнетизм |
| publishDate |
2017 |
| language |
English |
| container_title |
Физика низких температур |
| publisher |
Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України |
| format |
Article |
| description |
Transverse and longitudinal magnetoresistancies in n-type GaSb whiskers with different doping concentration (Te) in the vicinity to the metal-insulator transition (MIT) from metal side of the transition were studied in the temperature range 1.5–60 K and magnetic field 0–14 T. Shubnikov-de Haas oscillations in GaSb whiskers at low temperatures were revealed in magnetic field range 2–12 T. The oscillation period 0.025 T⁻¹ was found at various doping concentration in GaSb whiskers. The effective mass of electrons m c = 0.041 m ₀ and Dingle temperature of about 7.5 K were found in GaSb whiskers with impurity concentration in the vicinity to MIT. The presence of negative magnetoresistance in GaSb whiskers with the impurity concentration in the nearest approximation to MIT with resistivity ρ ₃₀₀ K = 0.0053 Ω cm was observed and associated with weak localization. Besides for the whiskers a resistance minimum was observed at temperature about 16 K that is connected with Kondo effect. Magnetoresistance studies of n-type conductivity for GaSb whiskers revealed the crossover from weak localization to antilocalization in the temperature range of 1.4–4.2 K and magnetic fields below 1 T.
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| issn |
0132-6414 |
| url |
https://nasplib.isofts.kiev.ua/handle/123456789/129503 |
| citation_txt |
Low-temperature magnetoresistance of GaSb whiskers / A. Druzhinin, I. Ostrovskii, Yu. Khoverko, N. Liakh-Kaguy // Физика низких температур. — 2017. — Т. 43, № 6. — С. 871-878. — Бібліогр.: 33 назв. — англ. |
| work_keys_str_mv |
AT druzhinina lowtemperaturemagnetoresistanceofgasbwhiskers AT ostrovskiii lowtemperaturemagnetoresistanceofgasbwhiskers AT khoverkoyu lowtemperaturemagnetoresistanceofgasbwhiskers AT liakhkaguyn lowtemperaturemagnetoresistanceofgasbwhiskers |
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2025-12-07T21:06:22Z |
| last_indexed |
2025-12-07T21:06:22Z |
| _version_ |
1850885099725258752 |