Ground-state phase diagrams of frustrated spin-SXXZchains: Chiral ordered phases

The ground-state phase diagrams are obtained for the spin-2 Ising model Hamiltonian with bilinear and biquadratic exchange interactions and a single-ion crystal field. The interactions are assumed to be only between nearest-neighbors. Obtained phase diagrams are presented in the (Δ,J), (K,J), (Δ/J,K/J), (Δ/|J|,K/|J|), (Δ/|K|,J/|K|), (H/J,Δ/J), (H/|J|,Δ/|J|), (H/J,K/J), and (H/|J|,K/|J|) planes where J, K, Δ, and H are the bilinear, biquadratic exchange interactions, the single-ion crystal field, and the external magnetic field, respectively. The influence of the external magnetic field on the spin configurations is investigated.

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Phase diagrams and ground-state magnetic properties of Pr-based filled skutterudites

Physica B Condensed Matter ◽

10.1016/j.physb.2005.01.245 ◽

2005 ◽

Vol 359-361 ◽

pp. 836-843 ◽

Cited By ~ 6

Author(s):

Toshiro Sakakibara ◽

Takashi Tayama ◽

Jeroen Custers ◽

Hidekazu Sato ◽

Takahiro Onimaru ◽

...

Keyword(s):

Magnetic Properties ◽

Phase Diagrams ◽

Ground State ◽

Filled Skutterudites

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Fractal Symmetric Phases of Matter

10.21468/scipostphys.6.1.007 ◽

2019 ◽

Vol 6 (1) ◽

Cited By ~ 35

Author(s):

Trithep Devakul ◽

Yizhi You ◽

F. J. Burnell ◽

Shivaji Sondhi

Keyword(s):

Cellular Automata ◽

Ground State ◽

Spin Systems ◽

Fractal Structures ◽

Ordered Phases ◽

Symmetry Protected

We study spin systems which exhibit symmetries that act on a fractal subset of sites, with fractal structures generated by linear cellular automata. In addition to the trivial symmetric paramagnet and spontaneously symmetry broken phases, we construct additional fractal symmetry protected topological (FSPT) phases via a decorated defect approach. Such phases have edges along which fractal symmetries are realized projectively, leading to a symmetry protected degeneracy along the edge. Isolated excitations above the ground state are symmetry protected fractons, which cannot be moved without breaking the symmetry. In 3D, our construction leads additionally to FSPT phases protected by higher form fractal symmetries and fracton topologically ordered phases enriched by the additional fractal symmetries.

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Magnetic Properties Study of the Nano-Alloy Fe1+xCo1−x by Monte-Carlo Simulations

SPIN ◽

10.1142/s2010324719500024 ◽

2019 ◽

Vol 09 (01) ◽

pp. 1950002 ◽

Cited By ~ 4

Author(s):

I. El Housni ◽

H. Labrim ◽

N. El Mekkaoui ◽

S. Idrissi ◽

R. Khalladi ◽

...

Keyword(s):

Monte Carlo ◽

Magnetic Properties ◽

Monte Carlo Simulations ◽

Phase Diagrams ◽

Ground State ◽

Exchange Coupling ◽

Hysteresis Loops ◽

Metropolis Algorithm ◽

Spintronic Devices ◽

Temperature Exchange

Motivated by spintronic devices and their applications, we engineer a model to investigate the magnetic properties of the magnetic nano-alloy Fe[Formula: see text]Co[Formula: see text]. Where [Formula: see text] is the fraction of iron atoms Fe substituted by the cobalt Co atoms, [Formula: see text] corresponds to 50% Fe atoms and 50% Co atoms, this compound is then called equiatomic FeCo. The purpose of this work is to apply the Monte-Carlo Simulations (MCS), under Metropolis algorithm to predict the magnetic properties of such system. In a first step, we propose a model describing this system including different exchange coupling interactions. Then, we establish and analyze the ground state phase diagrams, in different planes. For non-null temperature values, applied MCS under the Metropolis algorithm. The behavior of both the magnetizations and the susceptibilities are illustrated as a function of temperature. Also the effect of the different exchange coupling interactions is studied and discussed. The hysteresis loops are presented and analyzed for specific values of temperature, exchange coupling interactions and concentrations.

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Complete catalog of ground-state diagrams for the general three-state lattice-gas model with nearest-neighbor interactions on a square lattice

Physical Chemistry Chemical Physics ◽

10.1039/c8cp07721e ◽

2019 ◽

Vol 21 (11) ◽

pp. 6216-6223 ◽

Cited By ~ 1

Author(s):

Daniel Silva ◽

Per Arne Rikvold

Keyword(s):

Phase Diagrams ◽

Ground State ◽

Lattice Gas ◽

Nearest Neighbor ◽

Square Lattice ◽

Temperature Phase ◽

Zero Temperature ◽

Dimensional Parameter ◽

State Diagrams ◽

Solid Foundation

The fifteen topologically different zero-temperature phase diagrams in the model's full, five-dimensional parameter space provide a solid foundation for studies at finite temperatures.

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