About cookies on this site Our websites require some cookies to function properly (required). In addition, other cookies may be used with your consent to analyze site usage, improve the user experience and for advertising. For more information, please review your options. By visiting our website, you agree to our processing of information as described in IBM’sprivacy statement. To provide a smooth navigation, your cookie preferences will be shared across the IBM web domains listed here.
Publication
Physical Review Letters
Paper
Bound magnetic polarons and the insulator-metal transition in EuO
Abstract
A new model is presented for the insulator-metal transition in Eu-rich EuO: At low temperatures the electrons are only very weakly bound to oxygen vacancies and conduction is metallic; near and above Tc the electrons localize and form bound magnetic polarons by ordering the Eu2+ spins neighboring the vacancy, thereby gaining exchange energy. Magnetic-susceptibility data are presented which support this model. © 1972 The American Physical Society.