Hole distribution in (Sr, Ca, Y, La)14Cu24O41 compounds studies by x-ray absorption and emission spectroscopy
Creators
- 1. Tokyo Metropolitan College of Industrial Technology, Tokyo (Japan)
- 2. Univ. of Electro-Communications, Dept. of Applied Physics and Chemistry, Chofu, Tokyo (Japan)
- 3. RIKEN/SPring-8, Sayo, Hyogo (Japan)
- 4. Advanced Light Source, Lawrence Berkeley National Laboratory, Berkeley, CA (United States)
- 5. Tokyo Univ., Inst. for Solid State Physics, Kashiwa, Chiba (Japan)
- 6. Center for X-ray Optics, Lawrence Berkeley National Laboratory, Berkely (United States)
Description
The polarization dependence of soft x-ray absorption spectroscopy (XAS) and x-ray emission spectroscopy (XES) near the O 1s absorption edge was measured on two-leg ladder single-crystalline samples of (Sr, Ca, Y, La)14Cu24O41 (14-24-41). The hole distributions in 14-24-41 compounds are determined by polarization analysis. For samples with less than or equal to 5 holes/chemical formula (c.f.), all holes reside on the edge-shared chain layer. In the case of Sr14-xCaxCu24O41 (6 holes/c.f.), there is approximately one hole on the two-leg ladder layer, with about five holes remaining on the edge-shared chain layer. By Ca substitution for Sr in the Sr14-xCaxCu24O41 samples, 0.3 holes transfer from the edge-shared chain to the two-leg ladder layer. It is possible that some of the holes on the two-leg ladder layer move from the rung sites to the leg sites upon Ca substitution. (author)
Additional details
Publishing Information
- Journal Title
- Journal of the Physical Society of Japan
- Journal Volume
- 77
- Journal Issue
- 3
- Journal Page Range
- p. 034704.1-034604.11
- ISSN
- 0031-9015
INIS
- Country of Publication
- Japan
- Country of Input or Organization
- Japan
- INIS RN
- 39080406
- Subject category
- S75: CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY;
- Descriptors DEI
- ABSORPTION SPECTROSCOPY; CALCIUM COMPOUNDS; CRYSTAL STRUCTURE; CUPRATES; EMISSION SPECTROSCOPY; HOLES; LANTHANUM COMPOUNDS; MONOCRYSTALS; POLARIZATION; SOFT X RADIATION; STRONTIUM COMPOUNDS; SUPERCONDUCTIVITY; X-RAY SPECTROSCOPY; YTTRIUM COMPOUNDS
- Descriptors DEC
- ALKALINE EARTH METAL COMPOUNDS; COPPER COMPOUNDS; CRYSTALS; ELECTRIC CONDUCTIVITY; ELECTRICAL PROPERTIES; ELECTROMAGNETIC RADIATION; IONIZING RADIATIONS; OXYGEN COMPOUNDS; PHYSICAL PROPERTIES; RADIATIONS; RARE EARTH COMPOUNDS; SPECTROSCOPY; TRANSITION ELEMENT COMPOUNDS; X RADIATION
Optional Information
- Notes
- 23 refs., 13 figs.