Equation of state and spin-correlation functions of ultrasmall classical heisenberg magnets

Physical Review B - Condensed Matter and Materials Physics

Volumn 60, Issue 14, 1999, Pages 10122-10133

  Luscombe, J ^c   Luban, Marshall ^a  

^a IOWA STATE UNIVERSITY   (United States)

^b BEN GURION UNIVERSITY OF THE NEGEV   (Israel)

^c NAVAL POSTGRADUATE SCHOOL   (United States)

Author keywords

[No Author keywords available]

Indexed keywords

EID: 0000676118     PISSN: 10980121     EISSN: 1550235X     Source Type: Journal    
DOI: 10.1103/PhysRevB.60.10122     Document Type: Article

References (24)

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19. The zero-field susceptibility per spin for this quantum system is related to a reduced zero-field susceptibility (Formula presented) corresponding to Eq. (6), except that (Formula presented) replaces (Formula presented). However, instead of Eq. (7) we have (Formula presented), where (Formula presented) is the exchange interaction between quantum spins.
20. It is possible to express the function (Formula presented) in terms of the exponential integral functions (Formula presented) and (Formula presented), but such an expression is both lengthy and awkward given the fact that each of these functions has a branch point at the origin of the z plane, whereas (Formula presented) is an entire function.
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