Conditions for an emergent gauge field in planar artificial spin ices with the dumbbell model approach

被引：0

作者：

Nascimento, F. S. ^{[1
]}

de Oliveira, L. B. ^{[2
]}

Duarte, D. G. ^{[2
]}

de Araujo, C. I. L. ^{[2
]}

Moura-Melo, W. A. ^{[2
]}

Pereira, A. R. ^{[2
]}

机构：

[1] Univ Fed Reconcavo Bahia, Ctr Formacao Prof, BR-45300000 Amargosa, Bahia, Brazil

[2] Univ Fed Vicosa, Dept Fis, Lab Spintron & Nanomagnetismo, Vicosa, MG, Brazil

来源：

JOURNAL OF APPLIED PHYSICS | 2024年 / 135卷 / 24期

关键词：

MAGNETIC MONOPOLES; COULOMB PHASE; REALIZATION; STRINGS; ENTROPY; LATTICE;

D O I：

10.1063/5.0214755

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Magnetic structure factor (MSF), calculated from ground state configuration previously obtained by Monte Carlo simulation in different rectangular artificial spin ices, is employed to investigate ground state degeneracy. Our analysis considers the importance of nanoislands size to the ratio between rectangle sides in the lattice parameters via a dumbbell model. Pinch points in MSF along with residual entropy, determined for a number of different rectangular lattices with disconnected nanoislands, point out the conditions for the emergency of a gauge field, through which magnetic monopoles interact effectively.

引用

页数：7

共 50 条

[31] Gauge covariant approach to the electroweak interactions of mesons in the Nambu-Jona-Lasinio model with spin-1 states
Osipov, A. A.
Hiller, B.
Zhang, P. M.
MODERN PHYSICS LETTERS A, 2019, 34 (36)
[32] ISING MEAN FIELD MODEL FOR ANTIFERROMAGNETS IN THE PRESENCE OF SPIN FLUCTUATIONS - SCALING APPROACH FOR THE NONMEAN FIELD CASE AND ROLE OF DEFECTS
BARBARA, B
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 1992, 116 (1-2) : 27 - 54
[33] A FIELD-THEORY APPROACH TO THE T-J MODEL AND THE SPIN-CHARGE SEPARATION
LERDA, A
NUCLEAR PHYSICS B, 1994, 428 (03) : 629 - 654
[34] Quantum spin-1 anisotropic ferromagnetic Heisenberg model in a crystal field: A variational approach
Carvalho, D. C.
Plascak, J. A.
Castro, L. M.
PHYSICAL REVIEW E, 2013, 88 (03):
[35] Integer-spin Heisenberg chains in a staggered magnetic field.: A nonlinear σ-model approach
Ercolessi, E
Morandi, G
Pieri, P
Roncaglia, M
EUROPHYSICS LETTERS, 2000, 52 (04): : 434 - 440
[36] Density-wave-supersolid and Mott-insulator-superfluid transitions in the presence of an artificial gauge field: A strong-coupling perturbation approach
Sachdeva, Rashi
Ghosh, Sankalpa
PHYSICAL REVIEW A, 2012, 85 (01):
[37] Framing and assessing the emergent field of business model innovation for the circular economy: A combined literature review and multiple case study approach
Santa-Maria, Tomas
Vermeulen, Walter J. V.
Baumgartner, Rupert J.
SUSTAINABLE PRODUCTION AND CONSUMPTION, 2021, 26 : 872 - 891
[38] The Mixed Spin-1/2 and Spin-1 Ising–Heisenberg Model in the Mean-Field Approximation: a New Approach
Erhan Albayrak
Chinese Physics Letters, 2018, 35 (03) : 92 - 96
[39] CHARGE-SPIN SEPARATION IN THE T-J MODEL - AN EFFECTIVE-FIELD-THEORY APPROACH
MATSUI, T
SYNTHETIC METALS, 1995, 71 (1-3) : 1643 - 1644
[40] Spin-1 Blume-Capel model in a transverse crystal field: An improved variational approach
Carvalho, D. C.
Plascak, J. A.
PHYSICA A-STATISTICAL MECHANICS AND ITS APPLICATIONS, 2015, 432 : 240 - 256

← 1 2 3 4 5 →