Magnetic field dependence of conductivity and effective mass of carriers in a model of Mott-Hubbard material
The effect of external magnetic field h on a static conductivity of MottHubbard material which is described by the model with correlated hopping of electrons has been investigated. By means of canonical transformation, the effective Hamiltonian is obtained which takes into account strong intra-s...
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| Дата: | 2005 |
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| Автори: | , , , |
| Формат: | Стаття |
| Мова: | English |
| Опубліковано: |
Інститут фізики конденсованих систем НАН України
2005
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| Назва видання: | Condensed Matter Physics |
| Онлайн доступ: | http://dspace.nbuv.gov.ua/handle/123456789/121057 |
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| Назва журналу: | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| Цитувати: | Magnetic field dependence of conductivity and effective mass of carriers in a model of Mott-Hubbard material / L. Didukh, O. Kramar, Yu. Skorenkyy, Yu. Dovhopyaty // Condensed Matter Physics. — 2005. — Т. 8, № 4(44). — С. 825–834. — Бібліогр.: 39 назв. — англ. |
Репозитарії
Digital Library of Periodicals of National Academy of Sciences of Ukraine| id |
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irk-123456789-1210572017-06-14T03:04:38Z Magnetic field dependence of conductivity and effective mass of carriers in a model of Mott-Hubbard material Didukh, L. Kramar, O. Skorenkyy, Yu. Dovhopyaty, Yu. The effect of external magnetic field h on a static conductivity of MottHubbard material which is described by the model with correlated hopping of electrons has been investigated. By means of canonical transformation, the effective Hamiltonian is obtained which takes into account strong intra-site Coulomb repulsion and correlated hopping. Using a variant of generalized Hartree-Fock approximation the single-electron Green function and quasiparticle energy spectrum of the model have been calculated. The static conductivity σ has been calculated as a function of h, electron concentration n and temperature T . The correlated hopping is shown to cause the electron-hole asymmetry of transport properties of narrow band materials В статтi досліджено вплив зовнішнього магнiтного поля на статичну провідність Мотт-Габбардiвського матеріалу в моделi з корельованим переносом електронів. Ефективний гамiльтонiан отримано iз застосуванням канонічного перетворення та з використанням узагальненого наближення Гартрi-Фока знайдено функцію Грiна i енергетичний спектр. Провідність розрахована як функція магнiтного поля, концентрації електронів та температури. 2005 Article Magnetic field dependence of conductivity and effective mass of carriers in a model of Mott-Hubbard material / L. Didukh, O. Kramar, Yu. Skorenkyy, Yu. Dovhopyaty // Condensed Matter Physics. — 2005. — Т. 8, № 4(44). — С. 825–834. — Бібліогр.: 39 назв. — англ. 1607-324X PACS: 72.15.-v, 72.80.Ga DOI:10.5488/CMP.8.4.825 http://dspace.nbuv.gov.ua/handle/123456789/121057 en Condensed Matter Physics Інститут фізики конденсованих систем НАН України |
| institution |
Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| collection |
DSpace DC |
| language |
English |
| description |
The effect of external magnetic field h on a static conductivity of MottHubbard
material which is described by the model with correlated hopping
of electrons has been investigated. By means of canonical transformation,
the effective Hamiltonian is obtained which takes into account strong
intra-site Coulomb repulsion and correlated hopping. Using a variant of
generalized Hartree-Fock approximation the single-electron Green function
and quasiparticle energy spectrum of the model have been calculated.
The static conductivity σ has been calculated as a function of h, electron
concentration n and temperature T . The correlated hopping is shown to
cause the electron-hole asymmetry of transport properties of narrow band
materials |
| format |
Article |
| author |
Didukh, L. Kramar, O. Skorenkyy, Yu. Dovhopyaty, Yu. |
| spellingShingle |
Didukh, L. Kramar, O. Skorenkyy, Yu. Dovhopyaty, Yu. Magnetic field dependence of conductivity and effective mass of carriers in a model of Mott-Hubbard material Condensed Matter Physics |
| author_facet |
Didukh, L. Kramar, O. Skorenkyy, Yu. Dovhopyaty, Yu. |
| author_sort |
Didukh, L. |
| title |
Magnetic field dependence of conductivity and effective mass of carriers in a model of Mott-Hubbard material |
| title_short |
Magnetic field dependence of conductivity and effective mass of carriers in a model of Mott-Hubbard material |
| title_full |
Magnetic field dependence of conductivity and effective mass of carriers in a model of Mott-Hubbard material |
| title_fullStr |
Magnetic field dependence of conductivity and effective mass of carriers in a model of Mott-Hubbard material |
| title_full_unstemmed |
Magnetic field dependence of conductivity and effective mass of carriers in a model of Mott-Hubbard material |
| title_sort |
magnetic field dependence of conductivity and effective mass of carriers in a model of mott-hubbard material |
| publisher |
Інститут фізики конденсованих систем НАН України |
| publishDate |
2005 |
| url |
http://dspace.nbuv.gov.ua/handle/123456789/121057 |
| citation_txt |
Magnetic field dependence of conductivity and effective mass of carriers in a model of Mott-Hubbard material / L. Didukh, O. Kramar, Yu. Skorenkyy, Yu. Dovhopyaty // Condensed Matter Physics. — 2005. — Т. 8, № 4(44). — С. 825–834. — Бібліогр.: 39 назв. — англ. |
| series |
Condensed Matter Physics |
| work_keys_str_mv |
AT didukhl magneticfielddependenceofconductivityandeffectivemassofcarriersinamodelofmotthubbardmaterial AT kramaro magneticfielddependenceofconductivityandeffectivemassofcarriersinamodelofmotthubbardmaterial AT skorenkyyyu magneticfielddependenceofconductivityandeffectivemassofcarriersinamodelofmotthubbardmaterial AT dovhopyatyyu magneticfielddependenceofconductivityandeffectivemassofcarriersinamodelofmotthubbardmaterial |
| first_indexed |
2023-10-18T20:38:34Z |
| last_indexed |
2023-10-18T20:38:34Z |
| _version_ |
1796150730130718720 |