Two coupled Ising planes: Phase diagram and interplanar force
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Two coupled Ising planes : Phase diagram and interplanar force. / Hansen, Per Lyngs; Lemmich, Jesper; Ipsen, John Hjort; Mouritsen, Ole G.
In: Journal of Statistical Physics, Vol. 73, No. 3-4, 1993, p. 723-749.Research output: Contribution to journal › Journal article › Research › peer-review
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TY - JOUR
T1 - Two coupled Ising planes
T2 - Phase diagram and interplanar force
AU - Hansen, Per Lyngs
AU - Lemmich, Jesper
AU - Ipsen, John Hjort
AU - Mouritsen, Ole G.
PY - 1993
Y1 - 1993
N2 - The statistical mechanics of two Ising ferromagnetic planes coupled by a local interlayer two-spin interaction have been studied by means of a variety of calculational methods, including different mean-field approximations, Migdal-Kadanoff-type renormalization-group techniques, scaling theory, as well as numerical Monte Carlo simulation techniques. The phase diagram has been derived as a function of the interlayer coupling strength. Furthermore, various thermodynamic variables have been determined, including the interlayer correlation function, which is proportional to the interplanar force. It is found that a Migdal-Kadanoff renormalization with a decimation procedure which involves the interlayer coupling in an appropriate fashion provides an accurate description of the phase diagram and that a mean-field description provides a good description of the phase diagram and the interplanar force, except for very low interlayer coupling strengths.
AB - The statistical mechanics of two Ising ferromagnetic planes coupled by a local interlayer two-spin interaction have been studied by means of a variety of calculational methods, including different mean-field approximations, Migdal-Kadanoff-type renormalization-group techniques, scaling theory, as well as numerical Monte Carlo simulation techniques. The phase diagram has been derived as a function of the interlayer coupling strength. Furthermore, various thermodynamic variables have been determined, including the interlayer correlation function, which is proportional to the interplanar force. It is found that a Migdal-Kadanoff renormalization with a decimation procedure which involves the interlayer coupling in an appropriate fashion provides an accurate description of the phase diagram and that a mean-field description provides a good description of the phase diagram and the interplanar force, except for very low interlayer coupling strengths.
KW - interlayer coupling
KW - Ising model
KW - layered systems
KW - mean-field theory
KW - Monte Carlo simulation
KW - phase diagram
KW - renormalization group
KW - scaling theory
U2 - 10.1007/BF01054347
DO - 10.1007/BF01054347
M3 - Journal article
AN - SCOPUS:21344496559
VL - 73
SP - 723
EP - 749
JO - Journal of Statistical Physics
JF - Journal of Statistical Physics
SN - 0022-4715
IS - 3-4
ER -
ID: 236890238