Effect of High Pressure on the Crystal Structure
of Sr_1xLa_xCuO₂ Compounds

V. I. Bobrovski*, V. P. Glazkov**, S. E. Kichanov***, D. P. Kozlenko***,
B. N. Savenko***, and V. A. Somenkov**

* Institute of Metal Physics, Ural Division, Russian Academy of Sciences,
ul. S. Kovalevsko 18, Yekaterinburg, 620219 Russia

** Russian Research Centre Kurchatov Institute, pl. Kurchatova 1, Moscow, 123182 Russia

*** Joint Institute for Nuclear Research, Dubna, Moscow oblast, 141980 Russia

Received August 13, 2003; in final form, January 8, 2004

Abstract—The effect of high pressure on the tetragonal structure of infinite-layer compounds Sr_1–xLa_xCuO₂
(x = 0.07, 0.13) and the orthorhombic structure of the SrCuO₂ compound is investigated using powder neutron
diffraction. It is found that infinite-layer compounds are characterized by strong compression anisotropy. The
mechanism of the phase transition from the orthorhombic phase to the tetragonal phase is discussed. © 2004
MAIK “Nauka/Interperiodica”.

Pleiades Publishing home page | journal home page | top

If you have any problems with this server, contact webmaster.