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Coexistence of dipolar frustration and criticality in ferromagnets (2018)

Sergio A. Cannas and Alessandro Vindigni

American Physical Society (APS)

In: Physical Review E

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Publikationsdatum: 2018-12-21

Beschreibung: Author(s): Sergio A. Cannas and Alessandro Vindigni In real magnets the tendency toward ferromagnetism—promoted by exchange coupling—is usually frustrated by dipolar interaction. As a result, the uniformly ordered phase is replaced by modulated (multidomain) phases, characterized by different order parameters rather than the global magnetization. The... [Phys. Rev. E 98, 062131] Published Thu Dec 20, 2018

Schlagwort(e): Statistical Physics

Print ISSN: 1539-3755

Digitale ISSN: 1550-2376

Thema: Physik

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Percolation and jamming of random sequential adsorption samples of large linear $k$-mers on a square lattice (2018)

M. G. Slutskii, L. Yu. Barash, and Yu. Yu. Tarasevich

American Physical Society (APS)

In: Physical Review E

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Publikationsdatum: 2018-12-21

Beschreibung: Author(s): M. G. Slutskii, L. Yu. Barash, and Yu. Yu. Tarasevich The behavior of the percolation threshold and the jamming coverage for isotropic random sequential adsorption samples has been studied by means of numerical simulations. A parallel algorithm that is very efficient in terms of its speed and memory usage has been developed and applied to the model inv... [Phys. Rev. E 98, 062130] Published Thu Dec 20, 2018

Schlagwort(e): Statistical Physics

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Thema: Physik

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3

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Critical dynamical exponent of the two-dimensional scalar ${ϕ}^{4}$ model with local moves (2018)

Wei Zhong, Gerard T. Barkema, Debabrata Panja, and Robin C. Ball

American Physical Society (APS)

In: Physical Review E

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Publikationsdatum: 2018-12-20

Beschreibung: Author(s): Wei Zhong, Gerard T. Barkema, Debabrata Panja, and Robin C. Ball We study the scalar one-component two-dimensional (2D) ϕ 4 model by computer simulations, with local Metropolis moves. The equilibrium exponents of this model are well established, e.g., for the 2D ϕ 4 model γ = 1.75 and ν = 1 . The model has also been conjectured to belong to the Ising universality class.... [Phys. Rev. E 98, 062128] Published Wed Dec 19, 2018

Schlagwort(e): Statistical Physics

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Thema: Physik

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Enhanced magnetoelectric effect of the exactly solved spin-electron model on a doubly decorated square lattice in the vicinity of a continuous phase transition (2018)

Hana Čenčariková and Jozef Strečka

American Physical Society (APS)

In: Physical Review E

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Publikationsdatum: 2018-12-20

Beschreibung: Author(s): Hana Čenčariková and Jozef Strečka Magnetoelectric properties of a coupled spin-electron model on a doubly decorated square lattice in an external electric field applied along the crystallographic axis [11] are rigorously examined with the help of generalized decoration-iteration transformation. The phase diagram, spontaneous magneti... [Phys. Rev. E 98, 062129] Published Wed Dec 19, 2018

Schlagwort(e): Statistical Physics

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5

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Hidden thermal structure in Fock space (2018)

Chushun Tian, Kun Yang, Ping Fang, Hai-Jun Zhou, and Jiao Wang

American Physical Society (APS)

In: Physical Review E

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Publikationsdatum: 2018-12-19

Beschreibung: Author(s): Chushun Tian, Kun Yang, Ping Fang, Hai-Jun Zhou, and Jiao Wang The emergence of quantum statistical mechanics from individual pure states of closed many-body systems is under intensive investigation. While most effort has been put on the impact of the direct interaction (i.e., the usual mutual interaction), here we study systematically and analytically the impa... [Phys. Rev. E 98, 060103(R)] Published Tue Dec 18, 2018

Schlagwort(e): Statistical Physics

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6

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Relation between a heterogeneous percolation model for cylinders and phase separation in the lattice fluid problem (2018)

Avik P. Chatterjee and Claudio Grimaldi

American Physical Society (APS)

In: Physical Review E

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Publikationsdatum: 2018-12-19

Beschreibung: Author(s): Avik P. Chatterjee and Claudio Grimaldi A relationship based upon analogy is explored between (i) a lattice-based model for percolation by cylinders that employs distinct site types with unequal occupation probabilities in order to capture heterogeneities in the particle dispersion, and (ii) the well-studied mean-field lattice gas model. ... [Phys. Rev. E 98, 062125] Published Tue Dec 18, 2018

Schlagwort(e): Statistical Physics

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Thema: Physik

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7

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Temperature-field phase diagram of the two-dimensional dipolar Ising ferromagnet (2018)

Hisato Komatsu, Yoshihiko Nonomura, and Masamichi Nishino

American Physical Society (APS)

In: Physical Review E

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Publikationsdatum: 2018-12-19

Beschreibung: Author(s): Hisato Komatsu, Yoshihiko Nonomura, and Masamichi Nishino We study field-induced phase transitions in the two-dimensional dipolar Ising ferromagnet with a specific ratio between the exchange and dipolar constants, δ = 1 , which exhibits a stripe-ordered phase with the width of one lattice unit at low temperatures without magnetic field. By using a mean-field ... [Phys. Rev. E 98, 062126] Published Tue Dec 18, 2018

Schlagwort(e): Statistical Physics

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8

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Minimal stochastic field equations for one-dimensional flocking (2018)

E. Ó Laighléis, M. R. Evans, and R. A. Blythe

American Physical Society (APS)

In: Physical Review E

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Publikationsdatum: 2018-12-19

Beschreibung: Author(s): E. Ó Laighléis, M. R. Evans, and R. A. Blythe We consider the collective behavior of active particles that locally align with their neighbors. Agent-based simulation models have previously shown that in one dimension, these particles can form into a flock that maintains its stability by stochastically alternating its direction. Until now, this ... [Phys. Rev. E 98, 062127] Published Tue Dec 18, 2018

Schlagwort(e): Statistical Physics

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9

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Chaotic temperature and bond dependence of four-dimensional Gaussian spin glasses with partial thermal boundary conditions (2018)

Wenlong Wang, Mats Wallin, and Jack Lidmar

American Physical Society (APS)

In: Physical Review E

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Publikationsdatum: 2018-12-18

Beschreibung: Author(s): Wenlong Wang, Mats Wallin, and Jack Lidmar Spin glasses have competing interactions and complex energy landscapes that are highly susceptible to perturbations, such as the temperature or the bonds. The thermal boundary condition technique is an effective and visual approach for characterizing chaos and has been successfully applied to three ... [Phys. Rev. E 98, 062122] Published Mon Dec 17, 2018

Schlagwort(e): Statistical Physics

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10

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Simple property of heterogeneous aspiration dynamics: Beyond weak selection (2018)

Lei Zhou, Bin Wu, Vítor V. Vasconcelos, and Long Wang

American Physical Society (APS)

In: Physical Review E

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Publikationsdatum: 2018-12-18

Beschreibung: Author(s): Lei Zhou, Bin Wu, Vítor V. Vasconcelos, and Long Wang How individuals adapt their behavior in cultural evolution remains elusive. Theoretical studies have shown that the update rules chosen to model individual decision making can dramatically modify the evolutionary outcome of the population as a whole. This hints at the complexities of considering the... [Phys. Rev. E 98, 062124] Published Mon Dec 17, 2018

Schlagwort(e): Statistical Physics

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