Автор |
D Adelman |
Автор |
C P Burmester |
Автор |
L T Wille |
Автор |
P A Sterne |
Автор |
R Gronsky |
Дата выпуска |
1992-10-26 |
dc.description |
It is shown that the oxygen-ordered superstructures observed experimentally in YBa<sub>2</sub>Cu<sub>3</sub>O<sub>z</sub> can be understood in terms of an Ising Hamiltonian containing screened Coulomb repulsions between any two oxygen sites, augmented with a short-range attractive covalent interaction between oxygen sites adjoined by a copper atom. Spatially modulated commensurate phases separated by smooth soliton-like domain walls are obtained through Monte Carlo simulations. These simulations indicate the existence of a complete devil's staircase of phases. It is predicted that the plateau fine structure of the T<sub>c</sub>-z curve and the bond valence sum also exhibit experimentally observable staircase behaviour. |
Формат |
application.pdf |
Издатель |
Institute of Physics Publishing |
Название |
Long-range interactions, long-range order and a devil's staircase in YBa<sub>2</sub>Cu<sub>3</sub>O<sub>z</sub> |
Тип |
lett |
DOI |
10.1088/0953-8984/4/43/003 |
Electronic ISSN |
1361-648X |
Print ISSN |
0953-8984 |
Журнал |
Journal of Physics: Condensed Matter |
Том |
4 |
Первая страница |
L585 |
Последняя страница |
L592 |
Аффилиация |
D Adelman; Dept. of Phys., Florida Atlantic Univ., Boca Raton, FL, USA |
Аффилиация |
C P Burmester; Dept. of Phys., Florida Atlantic Univ., Boca Raton, FL, USA |
Аффилиация |
L T Wille; Dept. of Phys., Florida Atlantic Univ., Boca Raton, FL, USA |
Аффилиация |
P A Sterne; Dept. of Phys., Florida Atlantic Univ., Boca Raton, FL, USA |
Аффилиация |
R Gronsky; Dept. of Phys., Florida Atlantic Univ., Boca Raton, FL, USA |
Выпуск |
43 |