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The c/a ratio of helical magnetic structures in rare-earth materials
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UNSPECIFIED (1998) The c/a ratio of helical magnetic structures in rare-earth materials. In: International Conference on Magnetism, CAIRNS, AUSTRALIA, JUL 27-AUG 01, 1997. Published in: JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 177 (Part 2). pp. 1023-1024. ISSN 0304-8853.
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Abstract
We have measured the temperature dependence of the c/a ratio of Gd66Y34 by neutron diffraction. As the temperature decreases and the helimagnetic turn angle tends to zero, the cia ratio of the hexagonal crystalline structure tends to a limiting value of 1.591 +/- 0.001. This is in keeping with a proposal that the period of the helix is determined by the c/a ratio and both are linked to a 'ribbon' singularity of the Fermi surface. (C) 1998 Elsevier Science B.V. All rights reserved.
Item Type: | Conference Item (UNSPECIFIED) | ||||
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Subjects: | T Technology > TA Engineering (General). Civil engineering (General) Q Science > QC Physics |
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Journal or Publication Title: | JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | ||||
Publisher: | ELSEVIER SCIENCE BV | ||||
ISSN: | 0304-8853 | ||||
Official Date: | January 1998 | ||||
Dates: |
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Volume: | 177 | ||||
Number: | Part 2 | ||||
Number of Pages: | 2 | ||||
Page Range: | pp. 1023-1024 | ||||
Publication Status: | Published | ||||
Title of Event: | International Conference on Magnetism | ||||
Location of Event: | CAIRNS, AUSTRALIA | ||||
Date(s) of Event: | JUL 27-AUG 01, 1997 |
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