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Calculation of body-centered-cubic lattice sums with an application to ferromagnetism.The lattice sums for the bcc lattice are recalculated using the method of Flax and Raich to obtain more general expressions, valid for all temperatures, in terms of a Langevin function and its derivatives. Formulas are presented which enable easy numerical evaluation. A comparison with well-known low-temperature expansions and with the results of direct numerical integration demonstrates the validity at low temperatures of the more general expressions calculated here.
Document ID
19720050509
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Wintucky, E. G.
(NASA Lewis Research Center Cleveland, Ohio, United States)
Date Acquired
August 6, 2013
Publication Date
July 1, 1972
Publication Information
Publication: Physical Review B - Solid State
Subject Category
Physics, Solid-State
Accession Number
72A34175
Distribution Limits
Public
Copyright
Other

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