Наукова електронна бібліотека
періодичних видань НАН України
періодичних видань НАН України
d-electrons and superconductivity of transition metal oxides
Репозиторій DSpace/Manakin
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d-electrons and superconductivity of transition metal oxides
Інші назви:
d-электроны и сверхпроводимость оксидов переходных металлов
Тема:
Quantum fluids
Інший ID:
PACS: 74.72.Dn, 74.72. Dh
Посилання:
d-electrons and superconductivity of transition metal oxides / G.G. Sergeeva // Вопросы атомной науки и техники. — 2001. — № 6. — С. 375-379. — Бібліогр.: 25 назв. — англ.
Підтримка:
In conclusion, the author want to remark that it is a great honor for her to be a participant of A. Akhiezer Memorial Conference, and that it was a happy chance for her to work and to associate with this Eminent Person.
Дата:
2001
Переглядів:
913
Завантажень:
732
Анотація:
Some problems of the normal state of high temperature cuprate superconductors (HTS) with d-wave pairing are discussed. It is shown that: 1) at pseudogap temperature T* it occurs the dimensional crossover of the normal incoherent state to quasi 2D system of Cu O2 layers; 2) «naked holes» are bad quasiparticles for quasi 2D system with Jahn-Teller and mixed-valent Cu ions, with strong electron correlations and fluctuations, and with inherent strong p-d hybridization of copper and oxygen orbitals. Under these circumstances the holes are reduced to two types of the magneto-elastic polarons: the ferromagnetic bound polarons, which lead to forming of the stripes state, and antiferromagnetic Jahn-Teller-Zhang-Rice polarons which can form pairs and lead to the superconductivity.
