Mean field analysis of the exchange coupling (J) for two- and three-dimensional structured tetracyanoethenide (TCNE •-)-based magnets

Amber C. McConnell; Randy S. Fishman; Joel S. Miller

doi:10.1021/jp302765d

Mean field analysis of the exchange coupling (J) for two- and three-dimensional structured tetracyanoethenide (TCNE ^•-)-based magnets

Amber C. McConnell, Randy S. Fishman, Joel S. Miller

Materials Theory

Research output: Contribution to journal › Article › peer-review

7 Scopus citations

Abstract

Mean field expressions based on the simple Heisenberg model were derived to correlate the inter- and intralayer exchange couplings to the critical temperatures, T _c, for several tetracyanoethylene (TCNE)-based magnets with extended two- and three-dimensional (2-D and 3-D) structure types. These expressions were used to estimate the exchange coupling, J, for 2-D ferrimagnetic [M ^II(TCNE)(NCMe) ₂] ⁺ (M = Mn, Fe), 3-D antiferromagnetic Mn ^II(TCNE)[C ₄(CN) ₈] _1/2, and 3-D ferrimagnetic Mn ^II(TCNE) _3/2(I ₃) _1/2. The type and magnitude of the exchange coupling are in accord with the previously reported magnetic data.

Original language	English
Pages (from-to)	16154-16160
Number of pages	7
Journal	Journal of Physical Chemistry C
Volume	116
Issue number	30
DOIs	https://doi.org/10.1021/jp302765d
State	Published - Aug 2 2012

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title = "Mean field analysis of the exchange coupling (J) for two- and three-dimensional structured tetracyanoethenide (TCNE •-)-based magnets",

abstract = "Mean field expressions based on the simple Heisenberg model were derived to correlate the inter- and intralayer exchange couplings to the critical temperatures, T c, for several tetracyanoethylene (TCNE)-based magnets with extended two- and three-dimensional (2-D and 3-D) structure types. These expressions were used to estimate the exchange coupling, J, for 2-D ferrimagnetic [M II(TCNE)(NCMe) 2] + (M = Mn, Fe), 3-D antiferromagnetic Mn II(TCNE)[C 4(CN) 8] 1/2, and 3-D ferrimagnetic Mn II(TCNE) 3/2(I 3) 1/2. The type and magnitude of the exchange coupling are in accord with the previously reported magnetic data.",

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AU - Fishman, Randy S.

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N2 - Mean field expressions based on the simple Heisenberg model were derived to correlate the inter- and intralayer exchange couplings to the critical temperatures, T c, for several tetracyanoethylene (TCNE)-based magnets with extended two- and three-dimensional (2-D and 3-D) structure types. These expressions were used to estimate the exchange coupling, J, for 2-D ferrimagnetic [M II(TCNE)(NCMe) 2] + (M = Mn, Fe), 3-D antiferromagnetic Mn II(TCNE)[C 4(CN) 8] 1/2, and 3-D ferrimagnetic Mn II(TCNE) 3/2(I 3) 1/2. The type and magnitude of the exchange coupling are in accord with the previously reported magnetic data.

AB - Mean field expressions based on the simple Heisenberg model were derived to correlate the inter- and intralayer exchange couplings to the critical temperatures, T c, for several tetracyanoethylene (TCNE)-based magnets with extended two- and three-dimensional (2-D and 3-D) structure types. These expressions were used to estimate the exchange coupling, J, for 2-D ferrimagnetic [M II(TCNE)(NCMe) 2] + (M = Mn, Fe), 3-D antiferromagnetic Mn II(TCNE)[C 4(CN) 8] 1/2, and 3-D ferrimagnetic Mn II(TCNE) 3/2(I 3) 1/2. The type and magnitude of the exchange coupling are in accord with the previously reported magnetic data.

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Mean field analysis of the exchange coupling (J) for two- and three-dimensional structured tetracyanoethenide (TCNE ^•-)-based magnets

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