2011
DOI: 10.1103/physrevb.84.134422
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Ising metamagnets in thin film geometry: Equilibrium properties

Abstract: Artificial antiferromagnets and synthetic metamagnets have attracted much attention recently due to their potential for many different applications. Under some simplifying assumptions these systems can be modeled by thin Ising metamagnetic films. In this paper we study, using both the Wang/Landau scheme and importance sampling Monte Carlo simulations, the equilibrium properties of these films. On the one hand we discuss the microcanonical density of states and its prominent features. On the other we analyze ca… Show more

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Cited by 23 publications
(11 citation statements)
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“…5 summarizes our results of the finite-size scaling analysis of the susceptibility and specific heat for three cases, namely a system with 2-layer stacks that form a film of width N = 16 (black squares), a system that contains six stacks containing three layers (red circles), and a system with six stacks of four layers (blue triangles). The phase diagrams for all three cases have the same qualitative features (which are similar 31…”
Section: Equilibrium Propertiesmentioning
confidence: 58%
See 2 more Smart Citations
“…5 summarizes our results of the finite-size scaling analysis of the susceptibility and specific heat for three cases, namely a system with 2-layer stacks that form a film of width N = 16 (black squares), a system that contains six stacks containing three layers (red circles), and a system with six stacks of four layers (blue triangles). The phase diagrams for all three cases have the same qualitative features (which are similar 31…”
Section: Equilibrium Propertiesmentioning
confidence: 58%
“…7, the equilibrium phase is the intermediate phase where both surface layers are aligned with the magnetic field, resulting in five layers with positive and three layers with negative magnetization. 31 The metastable phases, see panels (h) and (i) in Fig. 6, are those where in the middle two layers, with z = 4 and z = 5, domain walls separate positively and negatively magnetized domains.…”
Section: Non-equilibrium Relaxationmentioning
confidence: 97%
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“…Thin films are widely recognized in the realms of experimental and applied science; the manufacture of electronics, optics, and packaging [1][2][3][4]; and the structural and magnetic properties of multilayers [5][6][7][8][9][10][11][12][13]. Recently, thin films have been widely studied with well-known theoretical methods by means of equilibrium and nonequilibrium Ising models, such as Monte Carlo (MC) simulations [14][15][16][17][18][19], mean-field approach (MFA) [20][21][22], and the effective-field theory (EFT) [23][24][25][26][27][28][29].…”
Section: Introductionmentioning
confidence: 99%
“…When the strength of the field is increased starting from zero, its phase transition point separating the ordered and disordered phases from each other gets to shift to the lower temperature region. From the theoretical point of view, thermal and magnetic phase transition properties of different kinds of metamagnetic systems have been studied by a wide variety of techniques such as Mean-Field Theory [1][2][3][4][5][6][7][8], Effective-Field Theory [9][10][11][12][13], Monte-Carlo simulation method [14][15][16][17][18][19][20][21][22][23][24][25], and High Temperature Series Expansion method [26,27]. The studies done so far show us that metamagnetic systems can include multicritical points such as tricritical point, bicritical end point and also critical end point depending on the ratio between these ferromagnetic and antiferromagnetic interactions.…”
Section: Introductionmentioning
confidence: 99%