Superconductivity of the new skutterudite compound LaxRh4P12 prepared at high pressure
Creators
- 1. Muroran Institute of Technology, 27-1, Mizumoto, Muroran-shi 050-8585 (Japan)
- 2. Kyosemi Corporation, 385-31, Toiso, Eniwa-shi 061-8568 (Japan)
- 3. Institute for Solid State Physics, University of Tokyo, Kashiwa-shi 277-8581 (Japan)
Description
A new skutterudite compound LaxRh4P12 has been prepared at around 1100 0C and 4 GPa. This product was characterized by powder x-ray diffraction at ambient pressure. The x-ray diffraction profile of LaxRh4P12 is indexed to the filled skutterudite-type structure. The lattice constant of this sample is 8.0581(5) A. The x value estimated from x-ray diffraction and electron probe microanalysis data is about 0.6. Electrical and magnetic properties of this compound have been studied at low temperatures. LaxRh4P12 showed a superconducting transition at around 17 K. This compound has the highest Tc among metal phosphides. The thermoelectric power of the new compound is negative, S = -47 μV K-1, at room temperature. The new superconducting material LaxRh4P12 is an n-type conductor
Availability note (English)
Available online at http://stacks.iop.org/0953-8984/17/7353/cm5_46_019.pdf or at the Web site for the Journal of Physics. Condensed Matter (ISSN 1361-648X) http://www.iop.org/Additional details
Identifiers
- URL
- http://stacks.iop.org/0953-8984/17/7353/cm5_46_019.pdf;
- DOI
- 10.1088/0953-8984/17/46/019;
- PII
- S0953-8984(05)04029-4;
Publishing Information
- Journal Title
- Journal of Physics. Condensed Matter
- Journal Volume
- 17
- Journal Issue
- 46
- Journal Page Range
- p. 7353-7357
- ISSN
- 0953-8984
- CODEN
- JCOMEL
INIS
- Country of Publication
- United Kingdom
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 37059345
- Subject category
- S75: CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY;
- Descriptors DEI
- ELECTRON MICROPROBE ANALYSIS; LANTHANUM COMPOUNDS; LATTICE PARAMETERS; MAGNETIC PROPERTIES; N-TYPE CONDUCTORS; POWDERS; PRESSURE DEPENDENCE; PRESSURE RANGE GIGA PA; RHODIUM PHOSPHIDES; SUPERCONDUCTIVITY; TEMPERATURE DEPENDENCE; X-RAY DIFFRACTION
- Descriptors DEC
- CHEMICAL ANALYSIS; COHERENT SCATTERING; DIFFRACTION; ELECTRIC CONDUCTIVITY; ELECTRICAL PROPERTIES; MATERIALS; MICROANALYSIS; NONDESTRUCTIVE ANALYSIS; PHOSPHIDES; PHOSPHORUS COMPOUNDS; PHYSICAL PROPERTIES; PNICTIDES; PRESSURE RANGE; RARE EARTH COMPOUNDS; REFRACTORY METAL COMPOUNDS; RHODIUM COMPOUNDS; SCATTERING; SEMICONDUCTOR MATERIALS; TRANSITION ELEMENT COMPOUNDS