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Bayukov, O. A. Orbital ordering in CuGeO3 / O. A. Bayukov, G. A. Petrakovskii, A. F. Savitskii> // Phys. Solid State. - 1998. - Vol. 40, Is. 9. - P. 1534-1539, DOI 10.1134/1.1130602. - Cited References: 25
. - ISSN 1063-7834РУБ Physics, Condensed Matter Рубрики: SPIN-PEIERLS TRANSITION COMPOUND CUGEO3 DIMERIZATION STATE SUSCEPTIBILITY (VO)2P2O7 LADDER Аннотация: The combined effect of the ligand crystal field and the exchange interaction on the Cu2+ cation in CuGeO3 is examined. It is shown that, if the magnitude of the exchange interaction exceeds the splitting of the energy levels of the d(x2-y2) and d(xy) orbitals, then an alternate filling of the d orbitals along a chain (orbital ordering) is possible. This effect creates an antiferromagnetic interaction between Cu2+ pairs in 90 degrees exchange and a doubling of the lattice period. A Jahn-Teller pseudoeffect causes singletization of the ground state of the antiferromagnetic chain of Cu2+ spins. (C) 1998 American Institute of Physics. [S1063-7834(98)02609-4].
WOS, Scopus, Читать в сети ИФ Держатели документа: Russian Acad Sci, LV Kirensky Phys Inst, Siberian Branch, Krasnoyarsk 660036, Russia ИФ СО РАН Доп.точки доступа: Petrakovskii, G. A.; Петраковский, Герман Антонович; Savitskii, A. F.; Баюков, Олег Артемьевич } Найти похожие
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