Magnetic Domains
TLDR
In this paper, a Nahm transform has been discovered for magnetic bags, which are conjectured to arise in the large n limit of magnetic monopoles with charge n, and they are interpreted using string theory and presented some partial proofs of this conjecture.Abstract:
Recently a Nahm transform has been discovered for magnetic bags, which are conjectured to arise in the large n limit of magnetic monopoles with charge n We interpret these ideas using string theory and present some partial proofs of this conjecture We then extend the notion of bags and their Nahm transform to higher gauge theories and arbitrary domains Bags in four dimensions conjecturally describe the large n limit of n self-dual strings We show that the corresponding Basu-Harvey equation is the large n limit of an equation describing n M2-branes, and that it has a natural interpretation in loop space We also formulate our Nahm equations using strong homotopy Lie algebrasread more
Citations
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Thickness-driven spin reorientation transition in ultrathin films
TL;DR: In this paper, a review of the literature on spin reorientation transitions (SRTs) is presented, with a phenomenological thermodynamic description of the relevant phase diagrams for the possible types of SRT with and without applied magnetic field.
Journal ArticleDOI
A multiscale model for reversible ferroelectric behaviour of polycrystalline ceramics
TL;DR: In this article, a multiscale model for the behavior of ferroelectric polycrystalline materials under electro-mechanical loading is proposed and applied to a tetragonal Lead Zirconate Titanate (PZT).
Journal ArticleDOI
Magnetotransport properties of iron microwires fabricated by focused electron beam induced autocatalytic growth
Fabrizio Porrati,Roland Sachser,Marie-Madeleine Walz,Florian Vollnhals,Hans-Peter Steinrück,Hubertus Marbach,Michael Huth +6 more
TL;DR: In this article, the anomalous Hall resistivity and longitudinal resistivity of iron microwires were investigated and it was found that the temperature dependence of the longitudinal resistivities shows a typical metallic behaviour with a room temperature value of about 88cm.
Journal ArticleDOI
Exploring the magnetic and organic microstructures with photoemission electron microscope
TL;DR: In this article, photoemission electron microscopy (PEEM) studies on geometrically constrained ferromagnetic, organic, and organics-ferromagnet hybrid structures are presented.
Journal ArticleDOI
Normal and abnormal grain growth in fine-grained Nd-Fe-B sintered magnets prepared from He jet milled powders
F. Bittner,T.G. Woodcock,Ludwig Schultz,C. A. Schwöbel,Oliver Gutfleisch,Gregor A. Zickler,Josef Fidler,K. Üstüner,M. Katter +8 more
TL;DR: In this article, a fine-grained, heavy rare earth free Nd-Fe-B sintered magnet was prepared from He jet milled powders with an average particle size of 1.68 µm by low temperature sintering at 920 °C or 980 °C.
References
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N=6 superconformal Chern-Simons-matter theories, M2-branes and their gravity duals
TL;DR: In this paper, the authors constructed three dimensional Chern-Simons-matter theories with gauge groups U(N) × U(n) and SU(N), SU(2) × SU (2) which have explicit = 6 superconformal symmetry.
Book
Introduction to symplectic topology
Dusa McDuff,Dietmar Salamon +1 more
TL;DR: In this article, the authors present a survey of the history of classical and modern manifold geometry, from classical to modern, including linear and almost complex structures, and the Arnold conjecture of the group of symplectomorphisms.
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Gauge symmetry and supersymmetry of multiple M2-branes
Jonathan Bagger,Neil Lambert +1 more
TL;DR: In this article, a supersymmetric field theory model for multiple M2-branes based on an algebra with a totally antisymmetric triple product is proposed. But the field is not dynamical.
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Dielectric-Branes
TL;DR: In this paper, the authors extend the usual action for a Dp-brane to the case of N coincident Dpbranes where the world-volume theory involves a U(N) gauge theory.
Journal ArticleDOI
Type iib superstrings, bps monopoles, and three-dimensional gauge dynamics
Amihay Hanany,Edward Witten +1 more
TL;DR: In this article, the Coulomb branch of certain three-dimensional supersymmetric gauge theories and the moduli spaces of magnetic monopoles are explained via string theory, and new phase transitions in three dimensions as well as new infrared fixed points and even new coupling constants are predicted from the string theory construction.