ANSTO Publications Online >
Journal Publications >
Journal Articles >

Please use this identifier to cite or link to this item: http://apo.ansto.gov.au/dspace/handle/10238/1590

Title: Anisotropic three-dimensional magnetism in CaFe2As2.
Authors: McQueeney, RJ
Diallo, SO
Antropov, VP
Samolyuk, GD
Broholm, C
Ni, N
Nandi, S
Yethiraj, M
Zarestky, JL
Pulikkotil, JJ
Kreyssig, A
Lumsden, MD
Harmon, BN
Canfield, PC
Goldman, AI
Keywords: Superconductivity
Magnetism
Anisotropy
Inelastic Scattering
Iron
Calcium
Issue Date: 28-Nov-2008
Publisher: American Physical Society
Citation: McQueeney, R. J., Diallo, S. O., Antropov, V. P., Samolyuk, G. D., Broholm, C., Ni, N., et al. (2008). Anisotropic three-dimensional magnetism in CaFe2As2. Physical Review Letters, 101(22), 4.
Abstract: Inelastic neutron scattering measurements of the magnetic excitations in CaFe2As2 indicate that the spin wave velocity in the Fe layers is exceptionally large and similar in magnitude to the cuprates. However, the spin wave velocity perpendicular to the layers is at least half as large that in the layer, so that the magnetism is more appropriately categorized as anisotropic three-dimensional, in contrast to the two-dimensional cuprates. Exchange constants derived from band structure calculations predict spin wave velocities that are consistent with the experimental data. © 2008, American Physical Society
URI: http://dx.doi.org/10.1103/PhysRevLett.101.227205
http://apo.ansto.gov.au/dspace/handle/10238/1590
ISSN: 0031-9007
Appears in Collections:Journal Articles

Files in This Item:

There are no files associated with this item.

Items in APO are protected by copyright, with all rights reserved, unless otherwise indicated.

 

Valid XHTML 1.0! DSpace Software Copyright © 2002-2010  Duraspace - Feedback