Published April 30, 2005 | Version v1
Journal article Metadata-only

La-NQR study of superconductivity in La3Ir2Ge2

Creators

  • 1. Department of Physics, Faculty of Engineering, Tokushima University, Tokushima 770-8506 (Japan)
  • 2. Institute for Materials Research, Tohoku University, Oarai, Ibaraki 311-1313 (Japan)

Description

139La-NQR measurement has been made in a superconductor La3Ir2Ge2. The spin-lattice relaxation rate 1/T1 measured in the normal state is proportional to the temperature T, indicating that La3Ir2Ge2 is a simple metal. In the superconducting state, a small coherence peak in 1/T1 appears just below the superconducting transition temperature Tc=4.7K and 1/T1 decreases exponentially well below Tc with decreasing temperatures. It is concluded that La3Ir2Ge2 is a BCS superconductor with an energy gap 2Δ(0)/kBTc=3.52

Additional details

Identifiers

DOI
10.1016/j.physb.2005.01.128;
PII
S0921-4526(05)00153-5;

Publishing Information

Journal Title
Physica. B, Condensed Matter
Journal Volume
359-361
Journal Page Range
p. 503-505
ISSN
0921-4526
CODEN
PHYBE3

Conference

Title
International conference on strongly correlated electron systems
Acronym
SCES '04
Dates
26-30 Jul 2004
Place
Karlsruhe (Germany)

INIS

Country of Publication
Netherlands
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
37065677
Subject category
S75: CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY;
Resource subtype / Literary indicator
Conference
Descriptors DEI
ENERGY GAP; GERMANIUM; INTERMETALLIC COMPOUNDS; IRIDIUM; LANTHANUM; LANTHANUM 139; NUCLEAR QUADRUPOLE RESONANCE; SPIN-LATTICE RELAXATION; SUPERCONDUCTIVITY; SUPERCONDUCTORS; TRANSITION TEMPERATURE
Descriptors DEC
ALLOYS; ELECTRIC CONDUCTIVITY; ELECTRICAL PROPERTIES; ELEMENTS; INTERMEDIATE MASS NUCLEI; ISOTOPES; LANTHANUM ISOTOPES; METALS; NUCLEI; ODD-EVEN NUCLEI; PHYSICAL PROPERTIES; PLATINUM METALS; RARE EARTH NUCLEI; RARE EARTHS; REFRACTORY METALS; RELAXATION; RESONANCE; STABLE ISOTOPES; THERMODYNAMIC PROPERTIES; TRANSITION ELEMENTS

Optional Information

Copyright
Copyright (c) 2005 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.