Work

Structural phase transformation and limited miscibility in Jahn–Teller systems

Year: 1999

Type: article

Abstract: Immiscibility of crystal systems with Jahn–Teller (JT) ions is studied at low temperatures. Phase transformations under which concentrated JT systems are separated into phases with a high and low concentration of JT ions with structural JT transformations are analyzed. A dependence of the phase diagram topology on the ratio between the cooperative interaction energy in the JT subsystem and the intensity of random crystal fields acting on the JT ions is established. The possibility of low-temperature three-phase equilibrium of two cubic and a tetragonal phase with different concentrations of JT centers is demonstrated for a high degree of substitutional-type disorder.

Source: Low Temperature Physics

DOI: 10.1063/1.593767

Authors: M. A. Ivanov, N. K. Tkachev, A. Ya. Fishman

Institutions: National Academy of Sciences of Ukraine, Ural Branch of the Russian Academy of Sciences, Institute of High Temperature Electrochemistry, Institute of Metallurgy

Language: English

Topic: Solid-state spectroscopy and crystallography

Subfield: Materials Chemistry

Field: Materials Science

Domain: Physical Sciences

Open Access status: green

OpenAlex ID: W2057546785

FWCI: 0.824

Cites: 9

Cited by: 13

Related to: 10