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We carry out large-scale micromagnetic simulations which demonstrate that due to topological constraints, internal domain walls (Bloch lines) within extended domain walls are more robust than domain walls in nanowires. Thus, the possibility…

Materials Science · Physics 2015-09-17 Touko Herranen , Lasse Laurson

We study the electronic and transport properties of a network of domain walls between insulating domains with opposite valley Chern numbers. We find that the network is semi-metallic with Dirac dispersion near the charge neutrality point…

Mesoscale and Nanoscale Physics · Physics 2020-05-20 Tao Hou , Yafei Ren , Yujie Quan , Jeil Jung , Wei Ren , Zhenhua Qiao

We study the role of domain walls and their relics in the very early Universe within the framework of the mode-matching technique. Domain walls formed during the spontaneous breaking of discrete symmetries are modelled as a short lived…

Cosmology and Nongalactic Astrophysics · Physics 2026-03-03 K. K. Venkataratnam

We consider a spinor domain wall embedded in a five-dimensional spacetime with a nondiagonal metric. The corresponding plane symmetric solutions for linear and nonlinear spinor fields with different parameters are obtained. It is shown that…

General Relativity and Quantum Cosmology · Physics 2023-07-31 Vladimir Dzhunushaliev , Vladimir Folomeev , Dina Zholdakhmet

We study QCD with massless quarks on $\mathbb{R}^3\times S^1$ under symmetry-twisted boundary conditions with small compactification radius, i.e. at high temperatures. Under suitable boundary conditions, the theory acquires a part of the…

High Energy Physics - Theory · Physics 2019-06-17 Hiromichi Nishimura , Yuya Tanizaki

We consider the evolution of domain walls produced during an anisotropic phase in the very early universe, showing that the resulting network can be very anisotropic. If the domain walls are produced during an inflationary era, the network…

Astrophysics · Physics 2009-10-31 P. P. Avelino , C. J. A. P. Martins

In this paper we describe domain walls appearing in a thin, nematic liquid crystal sample subject to an external field with intensity close to the Fr\'eedericksz transition threshold. Using the gradient theory of the phase transition…

Analysis of PDEs · Mathematics 2018-09-05 Marcel G. Clerc , Michal Kowalczyk , Panayotis Smyrnelis

The purpose of this article is to explore the properties of integrable, purely transmitting, defects placed at the junctions of several one-dimensional domains within a network. The defect sewing conditions turn out to be quite restrictive…

High Energy Physics - Theory · Physics 2020-12-02 E. Corrigan , C. Zambon

Theory of domain wall motion in a random medium is extended to the case when the driving field is below the zero-temperature depinning threshold and the creep of the domain wall is induced by thermal fluctuations. Subject to an ac drive,…

Disordered Systems and Neural Networks · Physics 2009-11-07 T. Nattermann , V. Pokrovsky , V. M. Vinokur

We show that the process of spontaneous symmetry breaking can trap a field theoretic system in a highly non-trivial state containing a lattice of domain walls. In one large compact space dimension, a lattice is inevitably formed. In two…

High Energy Physics - Phenomenology · Physics 2009-11-10 Nuno D. Antunes , Tanmay Vachaspati

Magnetic domain walls are topological solitons whose internal structure is set by competing energies which sculpt them. In common ferromagnets, domain walls are known to be of either Bloch or N\'eel types. Little is established in the case…

Hardcore bosons on honeycomb lattice ribbons with zigzag edges are studied using exact numerical simulations. We map out the phase diagrams of ribbons with different widths, which contain superfluid and insulator phases at various fillings.…

Strongly Correlated Electrons · Physics 2020-02-05 Xingchuan Zhu , Shiying Dong , Yang Lin , Rubem Mondaini , Huaiming Guo , Shiping Feng , Richard T. Scalettar

Domain walls separating regions of AB and BA interlayer stacking in bilayer graphene have attracted attention as novel examples of structural solitons, topological electronic boundaries, and nanoscale plasmonic scatterers. We show that…

Mesoscale and Nanoscale Physics · Physics 2017-10-20 Bor-Yuan Jiang , Guang-Xin Ni , Zachariah Addison , Jing K. Shi , Xiaomeng Liu , Frank Zhao , P. Kim , E. J. Mele , D. N. Basov , M. M. Fogler

Several experiments suggest that the charge carriers in the normal state of certain cuprate superconductors reside on domain walls. In an earlier paper, we suggested that several aspects of the anomalous dynamical behavior of these…

Condensed Matter · Physics 2009-10-28 Chetan Nayak , Frank Wilczek

A different lattice fermion method is introduced. Staggered domain wall fermions are defined in 2n+1 dimensions and describe 2^n flavors of light lattice fermions with exact U(1) x U(1) chiral symmetry in 2n dimensions. As the size of the…

High Energy Physics - Lattice · Physics 2009-11-07 George T. Fleming , Pavlos M. Vranas

We study kink (domain wall) solutions in a model consisting of two complex scalar fields coupled to two independent Abelian gauge fields in a Lagrangian that has $U(1)\times U(1)$ gauge plus $\mathbb{Z}_2$ discrete symmetry. We find…

High Energy Physics - Theory · Physics 2015-06-26 J. S. Rozowsky , R. R. Volkas , K. C. Wali

The phenomenon of creation of strings, occurring when particles pass through a domain wall and related to the Hanany-Witten effect via dualities, is discussed in ten and nine dimensions. We consider both the particle actions in massive…

High Energy Physics - Theory · Physics 2009-11-10 Eric Bergshoeff , Ulf Gran , Roman Linares , Mikkel Nielsen , Diederik Roest

We show that a system of a domain wall coupled to a scalar field has static negative energy density at certain distances from the domain wall. This system provides a simple, explicit example of violation of the averaged weak energy…

General Relativity and Quantum Cosmology · Physics 2010-04-05 Ken D. Olum , Noah Graham

We present a theoretical study of heat transport in electrically insulating ferromagnetic wires containing a domain wall. In the regime of validity of continuum micromagnetism a domain wall is found to have no effect on the heat…

Mesoscale and Nanoscale Physics · Physics 2012-09-07 Peng Yan , Gerrit E. W. Bauer

One well-known argument about one dimensional(1D) system is that 1D phase transition at finite temperature cannot exist, despite this concept depends on conditions such as range of interaction, external fields and periodicity. Therefore 1D…

Materials Science · Physics 2016-04-20 Qingming Deng , Jiong Zhao
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