Published May 11, 1998
| Version v1
Journal article
The ratio of small polarons to free carriers in La2-xSrxCuO4 derived from susceptibility measurements
- 1. Physik-Institut der Universitaet Zuerich, CH-8057 Zuerich (Switzerland)
- 2. Laboratorium fuer Festkoerperphysik, ETH Zuerich, CH-8093 (Switzerland)
Description
The normal-state spin susceptibility χ of La2-xSrxCuO4 was measured as a function of doping x. For x≤xt=0.09, χ is well described by small-polaron theory. For x≥xt, a temperature-independent Pauli component is present in χ as well. These results indicate the coexistence of small polarons and free carriers above the transition concentration xt. The concentration of the free carriers increases rapidly with x-xt, reaching a maximum for optimal doping (x=0.15). The large mass anisotropy of the polarons is obtained quantitatively from the χ-measurements. (author). Letter-to-the-editor
Availability note (English)
Available online at the Web site for the Journal of Physics. Condensed Matter (ISSN 1361-648X) http://www.iop.org/Additional details
Identifiers
- URL
- http://www.iop.org/;
Publishing Information
- Journal Title
- Journal of Physics. Condensed Matter
- Journal Volume
- 10
- Journal Issue
- 18
- Journal Page Range
- p. L291-L296
- ISSN
- 0953-8984
INIS
- Country of Publication
- United Kingdom
- Country of Input or Organization
- Belarus
- INIS RN
- 32010099
- Subject category
- S75: CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY;
- Descriptors DEI
- CHARGE CARRIERS; COPPER COMPOUNDS; DOPED MATERIALS; LANTHANUM COMPOUNDS; MAGNETIC SUSCEPTIBILITY; OXYGEN COMPOUNDS; PAULI PRINCIPLE; POLARONS; STRONTIUM COMPOUNDS
- Descriptors DEC
- ALKALINE EARTH METAL COMPOUNDS; MAGNETIC PROPERTIES; MATERIALS; PHYSICAL PROPERTIES; QUASI PARTICLES; RARE EARTH COMPOUNDS; TRANSITION ELEMENT COMPOUNDS
Optional Information
- Notes
- 26 refs