Published March 1, 2009 | Version v1
Journal article Metadata-only

Pressure effects on Tc of iron-based layered superconductor LaTMPO (TM = Fe, Ni)

Creators

  • 1. Graduate School of Integrated Basic Sciences, Nihon University, Tokyo 156-8550 (Japan)
  • 2. Department of Physics, College of Humanities and Sciences, Nihon University, Tokyo 156-8550 (Japan)
  • 3. ERATO-SORST, JST, in FRC, Tokyo Institute of Technology, Yokohama 226-8503 (Japan)
  • 4. Materials and Structures Laboratory, Tokyo Institute of Technology, Yokohama 226-8503 (Japan)
  • 5. FRC, Tokyo Institute of Technology, Yokohama 226-8503 (Japan)
  • 6. Institute for Solid State Physics, Tokyo University, Kashiwa 277-8581 (Japan)

Description

We report electrical and magnetic properties of LaTMPO (TM = Fe, Ni) under high pressures. From resistivity measurements, superconducting transition temperature Tc for LaFePO and LaNiPO increases steeply up to about 0.8 GPa, and the dTc/dP values are more than 4 K/GPa and 1 K/GPa, respectively. From the results of high-pressure x-ray diffraction measurements, the oxypnictide compounds show an anisotropic compression along a-axis and c-axis.

Availability note (English)

Available from http://dx.doi.org/10.1088/1742-6596/150/5/052075

Additional details

Identifiers

DOI
10.1088/1742-6596/150/5/052075;

Publishing Information

Journal Title
Journal of Physics. Conference Series (Online)
Journal Volume
150
Journal Issue
5
Journal Page Range
[4 p.]
ISSN
1742-6596

Conference

Title
25. international conference on low temperature physics
Acronym
LT25
Dates
6-13 Aug 2008
Place
Amsterdam (Netherlands)

INIS

Country of Publication
United Kingdom
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
41110456
Subject category
S75: CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY;
Resource subtype / Literary indicator
Conference
Descriptors DEI
ANISOTROPY; COMPRESSION; ELECTRIC CONDUCTIVITY; IRON COMPOUNDS; LANTHANUM PHOSPHATES; MAGNETIC PROPERTIES; NICKEL COMPOUNDS; PRESSURE RANGE GIGA PA; SUPERCONDUCTORS; TRANSITION TEMPERATURE; X-RAY DIFFRACTION
Descriptors DEC
COHERENT SCATTERING; DIFFRACTION; ELECTRICAL PROPERTIES; LANTHANUM COMPOUNDS; OXYGEN COMPOUNDS; PHOSPHATES; PHOSPHORUS COMPOUNDS; PHYSICAL PROPERTIES; PRESSURE RANGE; RARE EARTH COMPOUNDS; SCATTERING; THERMODYNAMIC PROPERTIES; TRANSITION ELEMENT COMPOUNDS