Published November 2011 | Version v1
Journal article Metadata-only

H+ irradiation effect in Co-doped BaFe2As2 single crystals

Creators

  • 1. JST, Transformative Research-Project on Iron Pnictides (TRIP), 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656 (Japan)
  • 2. Department of Applied Physics, University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656 (Japan)
  • 3. National Institute of Radiological Sciences, 4-9-1 Anagawa, Inage-ku, Chiba 263-8555 (Japan)

Description

The effect of H+ irradiation on the suppression of Tc in Co-doped BaFe2As2. H+ irradiation introduces nonmagnetic scattering centers. Critical Scattering rate is much higher than that expected in s±-pairing scenario. We report the suppression of the critical temperature Tc in single crystalline Ba(Fe1-xCox)2As2 at under-, optimal-, and over-doping levels by 3 MeV proton irradiation. Tc decreases and residual resistivity increases monotonically with increasing the dose. The low-temperature resistivity does not show the upturn in contrast with the α-particle irradiated NdFeAs(O,F), which suggests that proton irradiation introduces nonmagnetic scattering centers. Critical scattering rates for all samples obtained by three different ways are much higher than that expected in s±-pairing scenario based on inter-band scattering due to antiferro-magnetic spin fluctuations.

Availability note (English)

Available from http://dx.doi.org/10.1016/j.physc.2011.05.017

Additional details

Identifiers

DOI
10.1016/j.physc.2011.05.017;
arXiv
arXiv:1005.0942v1;
PII
S0921-4534(11)00104-3;

Publishing Information

Journal Title
Physica. C, Superconductivity
Journal Volume
471
Journal Issue
21-22
Journal Page Range
p. 647-650
ISSN
0921-4534
CODEN
PHYCE6

Conference

Title
23. international symposium on superconductivity
Dates
1-3 Nov 2010
Place
Tsukuba (Japan)

INIS

Country of Publication
Netherlands
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
43072378
Subject category
S75: CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY;
Resource subtype / Literary indicator
Conference
Descriptors DEI
ALPHA PARTICLES; ARSENIC COMPOUNDS; BARIUM COMPOUNDS; COBALT ADDITIONS; CRITICAL TEMPERATURE; DOPED MATERIALS; DOSES; ELECTRIC CONDUCTIVITY; FLUCTUATIONS; HYDROGEN IONS 1 PLUS; INHIBITION; IRON COMPOUNDS; IRRADIATION; MONOCRYSTALS; PHYSICAL RADIATION EFFECTS; POINT DEFECTS; PROTONS; SCATTERING; SPIN; SUPERCONDUCTORS
Descriptors DEC
ALKALINE EARTH METAL COMPOUNDS; ALLOYS; ANGULAR MOMENTUM; BARYONS; CATIONS; CHARGED PARTICLES; COBALT ALLOYS; CRYSTAL DEFECTS; CRYSTAL STRUCTURE; CRYSTALS; ELECTRICAL PROPERTIES; ELEMENTARY PARTICLES; FERMIONS; HADRONS; HYDROGEN IONS; IONIZING RADIATIONS; IONS; MATERIALS; NUCLEONS; PARTICLE PROPERTIES; PHYSICAL PROPERTIES; RADIATION EFFECTS; RADIATIONS; THERMODYNAMIC PROPERTIES; TRANSITION ELEMENT ALLOYS; TRANSITION ELEMENT COMPOUNDS; TRANSITION TEMPERATURE; VARIATIONS

Optional Information

Copyright
Copyright (c) 2011 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.