Thermoelectric studies of electronic properties of ferromagnetic GaMnAs layers
Thermoelectric power, electrical conductivity, and high field Hall effect were
 studied over a broad temperature range in ferromagnetic Ga₁₋xMnxAs epitaxial layers
 (0.015 ≤ x ≤ 0.06). Thermoelectric power analysis gives information about carrier
 transport mechanisms in laye...
Saved in:
| Published in: | Semiconductor Physics Quantum Electronics & Optoelectronics |
|---|---|
| Date: | 2008 |
| Main Authors: | , , , , , , , , , , |
| Format: | Article |
| Language: | English |
| Published: |
Інститут фізики напівпровідників імені В.Є. Лашкарьова НАН України
2008
|
| Online Access: | https://nasplib.isofts.kiev.ua/handle/123456789/119060 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| Journal Title: | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| Cite this: | Thermoelectric studies of electronic properties of ferromagnetic GaMnAs layers / V. Osinniy, K. Dybko, A. Jedrzejczak, M. Arciszewska, W. Dobrowolski, T. Story, M.V. Radchenko, V.I. Sichkovskiy, G.V. Lashkarev, S.M. Olsthoorn, J. Sadowski // Semiconductor Physics Quantum Electronics & Optoelectronics. — 2008. — Т. 11, № 3. — С. 257-265. — Бібліогр.: 45 назв. — англ. |
Institution
Digital Library of Periodicals of National Academy of Sciences of Ukraine| _version_ | 1862669732158636032 |
|---|---|
| author | Osinniy, V. Dybko, K. Jedrzejczak, A. Arciszewska, M. Dobrowolski, W. Story, T. Radchenko, M.V. Sichkovskiy, V.I. Lashkarev, G.V. Olsthoorn, S.M. Sadowski, J. |
| author_facet | Osinniy, V. Dybko, K. Jedrzejczak, A. Arciszewska, M. Dobrowolski, W. Story, T. Radchenko, M.V. Sichkovskiy, V.I. Lashkarev, G.V. Olsthoorn, S.M. Sadowski, J. |
| citation_txt | Thermoelectric studies of electronic properties of ferromagnetic GaMnAs layers / V. Osinniy, K. Dybko, A. Jedrzejczak, M. Arciszewska, W. Dobrowolski, T. Story, M.V. Radchenko, V.I. Sichkovskiy, G.V. Lashkarev, S.M. Olsthoorn, J. Sadowski // Semiconductor Physics Quantum Electronics & Optoelectronics. — 2008. — Т. 11, № 3. — С. 257-265. — Бібліогр.: 45 назв. — англ. |
| collection | DSpace DC |
| container_title | Semiconductor Physics Quantum Electronics & Optoelectronics |
| description | Thermoelectric power, electrical conductivity, and high field Hall effect were
studied over a broad temperature range in ferromagnetic Ga₁₋xMnxAs epitaxial layers
(0.015 ≤ x ≤ 0.06). Thermoelectric power analysis gives information about carrier
transport mechanisms in layers with both metallic and non-metallic types of conductivity
and allows determination of the Fermi energy and carrier concentration. At high
temperatures (T > 70 K), the thermoelectric power in GaMnAs linearly increases
with increasing temperature. That indicates the presence of a degenerate hole gas
with the Fermi energy EF = 220 ± 25 meV, nearly independent of Mn content (for
0.02 ≤ x ≤ 0.05). At lower temperatures, GaMnAs layers with metallic-type conductivity
show an additional contribution to the thermoelectric power with the maximum close to
the Curie temperature.
|
| first_indexed | 2025-12-07T15:29:27Z |
| format | Article |
| fulltext | |
| id | nasplib_isofts_kiev_ua-123456789-119060 |
| institution | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| issn | 1560-8034 |
| language | English |
| last_indexed | 2025-12-07T15:29:27Z |
| publishDate | 2008 |
| publisher | Інститут фізики напівпровідників імені В.Є. Лашкарьова НАН України |
| record_format | dspace |
| spelling | Osinniy, V. Dybko, K. Jedrzejczak, A. Arciszewska, M. Dobrowolski, W. Story, T. Radchenko, M.V. Sichkovskiy, V.I. Lashkarev, G.V. Olsthoorn, S.M. Sadowski, J. 2017-06-03T04:51:52Z 2017-06-03T04:51:52Z 2008 Thermoelectric studies of electronic properties of ferromagnetic GaMnAs layers / V. Osinniy, K. Dybko, A. Jedrzejczak, M. Arciszewska, W. Dobrowolski, T. Story, M.V. Radchenko, V.I. Sichkovskiy, G.V. Lashkarev, S.M. Olsthoorn, J. Sadowski // Semiconductor Physics Quantum Electronics & Optoelectronics. — 2008. — Т. 11, № 3. — С. 257-265. — Бібліогр.: 45 назв. — англ. 1560-8034 PACS 73.50.Lw, 73.61.Ey, 75.50.Pp https://nasplib.isofts.kiev.ua/handle/123456789/119060 Thermoelectric power, electrical conductivity, and high field Hall effect were
 studied over a broad temperature range in ferromagnetic Ga₁₋xMnxAs epitaxial layers
 (0.015 ≤ x ≤ 0.06). Thermoelectric power analysis gives information about carrier
 transport mechanisms in layers with both metallic and non-metallic types of conductivity
 and allows determination of the Fermi energy and carrier concentration. At high
 temperatures (T > 70 K), the thermoelectric power in GaMnAs linearly increases
 with increasing temperature. That indicates the presence of a degenerate hole gas
 with the Fermi energy EF = 220 ± 25 meV, nearly independent of Mn content (for
 0.02 ≤ x ≤ 0.05). At lower temperatures, GaMnAs layers with metallic-type conductivity
 show an additional contribution to the thermoelectric power with the maximum close to
 the Curie temperature. This work was partially supported by the Committee for
 Scientific Researches (Poland) under project PBZ-KBN-
 044/P03/2001 and within European Community program
 ICA1-CT-2000-70018 (Center of Excellence CELDIS).
 The GaMnAs samples were grown within the project
 supported by the Swedish Research Council (VR) and
 Swedish Foundation of Strategic Researches (SSF) en Інститут фізики напівпровідників імені В.Є. Лашкарьова НАН України Semiconductor Physics Quantum Electronics & Optoelectronics Thermoelectric studies of electronic properties of ferromagnetic GaMnAs layers Article published earlier |
| spellingShingle | Thermoelectric studies of electronic properties of ferromagnetic GaMnAs layers Osinniy, V. Dybko, K. Jedrzejczak, A. Arciszewska, M. Dobrowolski, W. Story, T. Radchenko, M.V. Sichkovskiy, V.I. Lashkarev, G.V. Olsthoorn, S.M. Sadowski, J. |
| title | Thermoelectric studies of electronic properties of ferromagnetic GaMnAs layers |
| title_full | Thermoelectric studies of electronic properties of ferromagnetic GaMnAs layers |
| title_fullStr | Thermoelectric studies of electronic properties of ferromagnetic GaMnAs layers |
| title_full_unstemmed | Thermoelectric studies of electronic properties of ferromagnetic GaMnAs layers |
| title_short | Thermoelectric studies of electronic properties of ferromagnetic GaMnAs layers |
| title_sort | thermoelectric studies of electronic properties of ferromagnetic gamnas layers |
| url | https://nasplib.isofts.kiev.ua/handle/123456789/119060 |
| work_keys_str_mv | AT osinniyv thermoelectricstudiesofelectronicpropertiesofferromagneticgamnaslayers AT dybkok thermoelectricstudiesofelectronicpropertiesofferromagneticgamnaslayers AT jedrzejczaka thermoelectricstudiesofelectronicpropertiesofferromagneticgamnaslayers AT arciszewskam thermoelectricstudiesofelectronicpropertiesofferromagneticgamnaslayers AT dobrowolskiw thermoelectricstudiesofelectronicpropertiesofferromagneticgamnaslayers AT storyt thermoelectricstudiesofelectronicpropertiesofferromagneticgamnaslayers AT radchenkomv thermoelectricstudiesofelectronicpropertiesofferromagneticgamnaslayers AT sichkovskiyvi thermoelectricstudiesofelectronicpropertiesofferromagneticgamnaslayers AT lashkarevgv thermoelectricstudiesofelectronicpropertiesofferromagneticgamnaslayers AT olsthoornsm thermoelectricstudiesofelectronicpropertiesofferromagneticgamnaslayers AT sadowskij thermoelectricstudiesofelectronicpropertiesofferromagneticgamnaslayers |