Pressure effect on electronic structure and magnetic properties of MB₆ and MB₁₂ borides
Theoretical and experimental studies of the pressure effect on electronic structure and magnetic properties of MB₆ and MB₁₂ borides are carried out to determine the electronic ground states and interactions responsible for the bulk and magnetic properties of these compounds. The band structure and t...
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Дата: | 2006 |
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Автори: | , , , , , , , |
Формат: | Стаття |
Мова: | English |
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Донецький фізико-технічний інститут ім. О.О. Галкіна НАН України
2006
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Назва видання: | Физика и техника высоких давлений |
Онлайн доступ: | http://dspace.nbuv.gov.ua/handle/123456789/70265 |
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Назва журналу: | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
Цитувати: | Pressure effect on electronic structure and magnetic properties of MB₆ and MB₁₂ borides / G.E. Grechnev, A.E. Baranovskiy, A.V. Logosha, A.S. Panfilov, V.D. Fil, T.V. Ignatova, N.Yu. Shitsevalova, O. Eriksson // Физика и техника высоких давлений. — 2006. — Т. 16, № 4. — С. 110-114. — Бібліогр.: 13 назв. — англ. |
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irk-123456789-702652014-11-02T03:01:51Z Pressure effect on electronic structure and magnetic properties of MB₆ and MB₁₂ borides Grechnev, G.E. Baranovskiy, A.E. Logosha, A.V. Panfilov, A.S. Fil, V.D. Ignatova, T.V. Shitsevalova, N.Yu. Eriksson, O. Theoretical and experimental studies of the pressure effect on electronic structure and magnetic properties of MB₆ and MB₁₂ borides are carried out to determine the electronic ground states and interactions responsible for the bulk and magnetic properties of these compounds. The band structure and total energy E were calculated ab initio for a number of atomic volumes, providing the equation of states, E(V), bulk moduli B, magnetic moments and susceptibilities. The temperature and pressure dependencies of magnetic susceptibility were also experimentally studied for a number of borides using a pendulum-type magnetometer. In semimetallic EuB₆ the paramagnetic Curie temperature is found to be increasing with pressure, dθ/dP = 0.44 ± 0.03 K/kbar, whereas in closely related GdB₆ compound the pressure effect is lower in magnitude but opposite in sign: dθ/dP = –0.17 ± 0.03 K/kbar. The peculiar details in electronic structures are found to be responsible for distinctions in magnetic ordering and the pressure effects on indirect f−f interactions. 2006 Article Pressure effect on electronic structure and magnetic properties of MB₆ and MB₁₂ borides / G.E. Grechnev, A.E. Baranovskiy, A.V. Logosha, A.S. Panfilov, V.D. Fil, T.V. Ignatova, N.Yu. Shitsevalova, O. Eriksson // Физика и техника высоких давлений. — 2006. — Т. 16, № 4. — С. 110-114. — Бібліогр.: 13 назв. — англ. 0868-5924 PACS: 62.20.Dc, 71.15.Nc, 71.20.Lp http://dspace.nbuv.gov.ua/handle/123456789/70265 en Физика и техника высоких давлений Донецький фізико-технічний інститут ім. О.О. Галкіна НАН України |
institution |
Digital Library of Periodicals of National Academy of Sciences of Ukraine |
collection |
DSpace DC |
language |
English |
description |
Theoretical and experimental studies of the pressure effect on electronic structure and magnetic properties of MB₆ and MB₁₂ borides are carried out to determine the electronic ground states and interactions responsible for the bulk and magnetic properties of these compounds. The band structure and total energy E were calculated ab initio for a number of atomic volumes, providing the equation of states, E(V), bulk moduli B, magnetic moments and susceptibilities. The temperature and pressure dependencies of magnetic susceptibility were also experimentally studied for a number of borides using a pendulum-type magnetometer. In semimetallic EuB₆ the paramagnetic Curie temperature is found to be increasing with pressure, dθ/dP = 0.44 ± 0.03 K/kbar, whereas in closely related GdB₆ compound the pressure effect is lower in magnitude but opposite in sign: dθ/dP = –0.17 ± 0.03 K/kbar. The peculiar details in electronic structures are found to be responsible for distinctions in magnetic ordering and the pressure effects on indirect f−f interactions. |
format |
Article |
author |
Grechnev, G.E. Baranovskiy, A.E. Logosha, A.V. Panfilov, A.S. Fil, V.D. Ignatova, T.V. Shitsevalova, N.Yu. Eriksson, O. |
spellingShingle |
Grechnev, G.E. Baranovskiy, A.E. Logosha, A.V. Panfilov, A.S. Fil, V.D. Ignatova, T.V. Shitsevalova, N.Yu. Eriksson, O. Pressure effect on electronic structure and magnetic properties of MB₆ and MB₁₂ borides Физика и техника высоких давлений |
author_facet |
Grechnev, G.E. Baranovskiy, A.E. Logosha, A.V. Panfilov, A.S. Fil, V.D. Ignatova, T.V. Shitsevalova, N.Yu. Eriksson, O. |
author_sort |
Grechnev, G.E. |
title |
Pressure effect on electronic structure and magnetic properties of MB₆ and MB₁₂ borides |
title_short |
Pressure effect on electronic structure and magnetic properties of MB₆ and MB₁₂ borides |
title_full |
Pressure effect on electronic structure and magnetic properties of MB₆ and MB₁₂ borides |
title_fullStr |
Pressure effect on electronic structure and magnetic properties of MB₆ and MB₁₂ borides |
title_full_unstemmed |
Pressure effect on electronic structure and magnetic properties of MB₆ and MB₁₂ borides |
title_sort |
pressure effect on electronic structure and magnetic properties of mb₆ and mb₁₂ borides |
publisher |
Донецький фізико-технічний інститут ім. О.О. Галкіна НАН України |
publishDate |
2006 |
url |
http://dspace.nbuv.gov.ua/handle/123456789/70265 |
citation_txt |
Pressure effect on electronic structure and magnetic properties of MB₆ and MB₁₂ borides / G.E. Grechnev, A.E. Baranovskiy, A.V. Logosha, A.S. Panfilov, V.D. Fil, T.V. Ignatova, N.Yu. Shitsevalova, O. Eriksson // Физика и техника высоких давлений. — 2006. — Т. 16, № 4. — С. 110-114. — Бібліогр.: 13 назв. — англ. |
series |
Физика и техника высоких давлений |
work_keys_str_mv |
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first_indexed |
2023-10-18T18:58:09Z |
last_indexed |
2023-10-18T18:58:09Z |
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