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The $U(1)$ Dirac spin liquid might realize an exotic phase of matter whose low-energy properties are described by quantum electrodynamics in $2+1$ dimensions, where gapless modes exists but spinons and gauge fields are strongly coupled. Its…

Strongly Correlated Electrons · Physics 2025-03-28 Sasank Budaraju , Alberto Parola , Yasir Iqbal , Federico Becca , Didier Poilblanc

Magnonic crystals are magnetic metamaterials, that provide a promising way to manipulate magnetodynamic properties by controlling the geometry of the patterned structures. Here, we study the magnetodynamic properties of 1D magnonic crystals…

Mesoscale and Nanoscale Physics · Physics 2021-08-05 Suraj Singh , Xiansi Wang , Ankit Kumar , Alireza Qaiumzadeh , Peter Svedlindh , Thomas Tybell , Erik Wahlström

We report an interesting case where magnetic phenomena can transcend mesoscopic scales. Our system consists of tubes created by assembly of dipolar spheres. The cylindrical topology results in the breakup of degeneracy observed in the…

Soft Condensed Matter · Physics 2018-12-03 Igor Stanković , Miljan Dašić , Jorge A. Otálora , Carlos García

Magnetism and magnetic monopole are classical issues in basic physics. Conventional magnets are generally composed of rigid materials with shapes and structures unchangeable which may face challenges sometimes to answer the above questions.…

Soft Condensed Matter · Physics 2021-11-05 Ying-Xin Zhou , Jia-Sheng Zu , Jing Liu

We use supersymmetry transformations to obtain new one parameter family of inhomogeneous magnetic fields $\mathbf{B} = \widetilde{\mathcal{B}}(x,\lambda) \hat{e}_z$ for which the massless Dirac electron possesses exact solution. The…

Mesoscale and Nanoscale Physics · Physics 2014-07-02 Bikashkali Midya , David J Fernández

We report on the stability of the magnetic dipole string (DS), a three-dimensional magnetic texture formed by two coupled Bloch points with opposite topological charges, separated by an equilibrium distance. Previous studies demonstrated…

Mesoscale and Nanoscale Physics · Physics 2025-05-08 Vladyslav M. Kuchkin , Nikolai S. Kiselev , Andreas Haller , Štefan Liščák , Andreas Michels , Thomas L. Schmidt

We present a scheme for generating a synthetic magnetic field and spin-orbit coupling via Raman coupling in highly magnetic lanthanide atoms such as dysprosium. Employing these atoms offer several advantages for realizing strongly…

Quantum Gases · Physics 2013-07-25 Xiaoling Cui , Biao Lian , Tin-Lun Ho , Benjamin L. Lev , Hui Zhai

We revisit the description of the magnetic field around antiferromagnetic magnetoelectrics in the context of recent developments regarding magnetoelectric monopoles. Using Maxwell's equations, we calculate the magnetic and electric fields…

Materials Science · Physics 2014-05-28 Michael Fechner , Nicola A. Spaldin , I. E. Dzyaloshinskii

Motivated by the idea of using simple macroscopic examples to illustrate the physics of complex systems, we modify a historic experimental setup in which interacting floating magnets spontaneously self-assemble into ordered clusters. By…

Soft Condensed Matter · Physics 2024-12-20 P. D. S. de Lima , A. Lyons , A. Irannezhad , J. M. de Araújo , S. Hutzler , M. S. Ferreira

We show theoretically that a monopole defect, analogous to the Dirac magnetic monopole, may exist as the ground state of a dilute spin-1 Bose-Einstein condensate. The ground-state monopole is not attached to a single semi-infinite Dirac…

Quantum Gases · Physics 2015-05-30 Emmi Ruokokoski , Ville Pietilä , Mikko Möttönen

Halbach spheres provide a theoretically elegant means of generating highly homogeneous magnetic fields, but practical implementation is hindered by challenging fabrication and restricted interior access. This study examines discrete…

Instrumentation and Detectors · Physics 2026-05-05 Ingo Rehberg , Peter Blümler

Closed-topology magnetic domains are usually observed in thin films and in an applied magnetic field. Here we report the observation of rectangular cross-section tubular ferromagnetic domains in thick single crystals of CeAgSb2 in zero…

Materials Science · Physics 2022-02-16 Ruslan Prozorov , Sergey L. Bud'ko , Paul C. Canfield

The hedgehog lattice (HL) is a three-dimensional topological spin texture hosting a periodic array of magnetic monopoles and antimonopoles. It has been studied theoretically for noncentrosymmetric systems with the Dzyaloshinskii-Moriya…

Strongly Correlated Electrons · Physics 2022-08-17 Shun Okumura , Satoru Hayami , Yasuyuki Kato , Yukitoshi Motome

We investigated possibility of using local magnetic field originating from ferromagnetic island deposited on the top of semiconductor quantum well to produce zero- and one-dimensional traps for quasi-particles with spin. In particular we…

Materials Science · Physics 2009-11-10 P. Redlinski , T. Wojtowicz , T. G. Rappoport , A. Libal , J. K. Furdyna , B. Janko

Magnetic skyrmions offer promising prospects for constructing future energy-efficient and high-density information technology, leading to extensive explorations of new skyrmionic materials recently. The topological Hall effect has been…

Artificial spin ice provides a versatile setting for emergent gauge fields and magnetic monopole excitations. Here we propose a driven-dissipative polariton realization of artificial spin ice, in which the circular polarization of each link…

Mesoscale and Nanoscale Physics · Physics 2026-03-31 Junhui Cao , Alexey Kavokin

We describe degenerate square spin as an ensemble of magnetic monopoles coupled via an emergent entropic field that subsumes the effect of the underlying spin vacuum. We compute their effective free energy, entropic interaction,…

Mesoscale and Nanoscale Physics · Physics 2021-07-21 Cristiano Nisoli

The magnetic hedgehog lattice (HL), which was recently discovered in the $B$20-type chiral magnet MnSi$_{1-x}$Ge$_x$, is a topological spin texture with a periodic array of magnetic monopoles and anti-monopoles. Within the continuum…

Strongly Correlated Electrons · Physics 2020-04-23 Shun Okumura , Satoru Hayami , Yasuyuki Kato , Yukitoshi Motome

Magnetic monopoles have been realized as emergent quasiparticles in both condensed matter and ultracold atomic platforms, with growing interests in the coupling effects between the monopole and different magnetic quasiparticles. In this…

Identifying and imaging spin textures of ever more complex magnetic structures has become a major challenge in the past decade, especially at ultrashort timescales. Most of current approaches are based on the analysis of their polarization…

Optics · Physics 2020-05-26 Thierry Ruchon , Mauro Fanciulli
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