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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Бібліографічні деталі
Дата:2006
Автори: Grechnev, G.E., Baranovskiy, A.E., Logosha, A.V., Panfilov, A.S., Fil, V.D., Ignatova, T.V., Shitsevalova, N.Yu., Eriksson, O.
Формат: Стаття
Мова:English
Опубліковано: Донецький фізико-технічний інститут ім. О.О. Галкіна НАН України 2006
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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Digital Library of Periodicals of National Academy of Sciences of Ukraine
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spelling 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
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