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On the thermodynamics of classical spins with isotrop Heisenberg interaction in one-dimensional quasi-periodic structures

✍ Scribed by D. Badalian; V. Gasparian; R. Abramian; A. Khachatrian; Ute Gummich

Publisher
Elsevier Science
Year
1996
Tongue
English
Weight
312 KB
Volume
226
Category
Article
ISSN
0921-4526

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✦ Synopsis

An exact expression for the free energy of a system of classical magnetic moments, which occupy sites on a Fibonacci or Thue-Morse quasi-crystal lattice and interact via an isotropic Heisenberg interaction, is obtained. The temperature dependence of the specific heat for certain classes of one-dimensional quasi-crystal lattices is discussed. In the case, when spin rotations are confined in a plane(model of plane rotators), some Fibonacci crystals show an extra peak in the specific heat at low temperatures.

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## Abstract In this paper, we analyze finite one‐dimensional photonic crystals in which the layers in the primitive cell follow a pseudonoise sequence pattern. In this analysis, the layers are composed of two different materials, but the organization of the layers in the primitive cell is varied. T