Elastic properties of La2CuO4 under pressure / Nikiforov AE,Shashkin SY,Zaharov AY // JOURNAL OF PHYSICS-CONDENSED MATTER. - 2000. - V. 12, l. 7. - P. 1199-1207.

ISSN/EISSN:

0953-8984 / нет данных

Type:

Article

Abstract:

Within the framework of the pair potential approximation and the shell model including the Jahn-Teller contribution to the crystal energy we have studied the elastic properties of La2CuO4. The strong anisotropic correlation between the lattice deformations e(xx) and e(zz) and the internal displacements of the accompanying sublattices within the La2O2 layers are shown to be responsible for the giant anisotropy of the elastic moduli in the xz-plane. We have predicted the softening of several elastic moduli in the orthorhombic phase region neat the pressure-induced structural phase transition. But we have not observed the softening of c(11), c(12), and c(66) in the tetragonal phase region that was measured near the temperature-induced structural phase transition.

Author keywords:

HIGH-TC SUPERCONDUCTIVITY; SINGLE-CRYSTALS; LA2-XSRXCUO4; LA1.86SR0.14CUO4; LA2-XBAXCUO4; CONSTANTS; MODULI

DOI:

10.1088/0953-8984/12/7/305

Web of Science ID:

ISI:000087265000009

Соавторы в МНС:

—

Другие поля

Поле	Значение
Month	FEB 21
Publisher	IOP PUBLISHING LTD
Address	DIRAC HOUSE, TEMPLE BACK, BRISTOL BS1 6BE, ENGLAND
Language	English
Keywords-Plus	HIGH-TC SUPERCONDUCTIVITY; SINGLE-CRYSTALS; LA2-XSRXCUO4; LA1.86SR0.14CUO4; LA2-XBAXCUO4; CONSTANTS; MODULI
Research-Areas	Physics
Web-of-Science-Categories	Physics, Condensed Matter
ResearcherID-Numbers	Nikiforov, Anatoliy/L-4436-2016
Number-of-Cited-References	22
Usage-Count-Since-2013	5
Journal-ISO	J. Phys.-Condes. Matter
Doc-Delivery-Number	318BX