Published February 15, 2017 | Version v1
Journal article Metadata-only

The structure of filled skutterudites and the local vibration behavior of the filling atom

Creators

  • 1. University of Chinese Academy of Sciences, Beijing 100049 (China)
  • 2. Dongguan Institute of Neutron Science, Dongguan 523808 (China)
  • 3. Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049 (China)
  • 4. Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050 (China)
  • 5. State Key Laboratory of New Ceramics and Fine Processing, School of Materials Science and Engineering, Tsinghua University, Beijing 100084 (China)
  • 6. Shanghai Institute of Applied Physics, Chinese Academy of Science, Shanghai 201204 (China)

Description

Both of atomic pair distribution function (PDF) and extended x-ray absorption fine structure (EXAFS) experiments have been carried out on unfilled and Yb-filled skutterudites YbxCo4Sb12 (x=0, 0.15, 0.2 and 0.25) samples. The structure refinements on PDF data confirm the large amplitude vibration of Yb atom and the dependence of Yb vibration amplitude on the filling content. Temperature dependent EXAFS experiment on filled skutterudites have been carried out at Yb LⅢ-edge in order to explore the local vibration behavior of filled atom. EXAFS experiments show that the Einstein temperature of the filled atom is very low (70.9 K) which agrees with the rattling behavior.

Availability note (English)

Available from http://dx.doi.org/10.1016/j.physb.2016.12.007

Additional details

Identifiers

DOI
10.1016/j.physb.2016.12.007;
PII
S0921-4526(16)30575-0;

Publishing Information

Journal Title
Physica. B, Condensed Matter
Journal Volume
507
Journal Page Range
p. 131-133
ISSN
0921-4526
CODEN
PHYBE3

INIS

Country of Publication
Netherlands
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
48065510
Subject category
S75: CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY;
Descriptors DEI
ABSORPTION; ABSORPTION SPECTROSCOPY; AMPLITUDES; ANTIMONY COMPOUNDS; ATOMS; COBALT COMPOUNDS; DISTRIBUTION; DISTRIBUTION FUNCTIONS; FINE STRUCTURE; LATTICE VIBRATIONS; TEMPERATURE DEPENDENCE; X-RAY SPECTROSCOPY; YTTERBIUM COMPOUNDS
Descriptors DEC
FUNCTIONS; RARE EARTH COMPOUNDS; SORPTION; SPECTROSCOPY; TRANSITION ELEMENT COMPOUNDS

Optional Information

Copyright
Copyright (c) 2016 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.