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Crystal growth and neutron diffraction studies of LixCoO2 bulk single crystals

DOI: 10.1016/j.jcrysgro.2013.11.043 DOI Help

Authors: S. Uthayakumar (Royal Holloway, University of London) , M. Pandiyan (Royal Holloway, University of London) , D. G. Porter (Royal Holloway, University of London) , M. J. Gutmann (Rutherford Appleton Laboratory) , R. Fan (Diamond Light Source) , J. P. Goff (Royal Holloway and Bedford New College)
Co-authored by industrial partner: No

Type: Journal Paper
Journal: Journal Of Crystal Growth , VOL 401 , PAGES 169 - 172

State: Published (Approved)
Published: September 2014

Abstract: The first successful growth of neutron-size single-crystal LixCoO2 by the optical floating-zone technique is reported. Structural properties have been studied using the time-of-flight neutron Laue diffraction technique. Our experiment is the first report of the LixCoO2 single-crystal neutron study. The neutron diffraction profile yields sharp, strong Bragg reflections, indicating a single grain of high crystalline quality. The structural refinement from the single-crystal neutron diffraction data indicated a trigonal structure of space group R (3) over barm, and a Li concentration x=0.87. No superlattice reflections were detected. The surface morphology analysed by scanning electron microscopy revealed the absence of cracks. The magnetic susceptibility was measured in a field of 1 T with H parallel to c and H perpendicular to c, and an antiferromagnetic transition was observed at similar to 10 K, with no magnetic impurities. (C) 2013 Published by Elsevier B.V.

Journal Keywords: Crystal structure; Floating zone technique; Single crystal growth; Lithium compounds

Diamond Keywords: Batteries; Lithium-ion

Subject Areas: Physics, Materials, Energy

Instruments: I10-Beamline for Advanced Dichroism - scattering

Added On: 16/03/2016 12:11

Discipline Tags:

Energy Storage Energy Physics Physical Chemistry Energy Materials Chemistry Magnetism Materials Science

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