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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Long-range proximity effect in Nb-based heterostructures induced by a magnetically inhomogeneous permalloy layer
C. Cirillo,S. Voltan,E. A. Ilyina,Joan Manel Hernàndez,A. García-Santiago,Jan Aarts,Carmine Attanasio +6 more
TL;DR: In this article, it was shown that spin triplet pair formation can be found in simple unstructured Nb/permalloy ()/Nb trilayers and Nb /Py bilayers, but only when the thickness of the ferromagnetic layer ranges between 140 and 250 nm.
Journal ArticleDOI
Barium ferrite thin films with faceted grains fabricated by using ethylenediaminetetraacetic acid
TL;DR: Barium ferrite films were prepared by spin-coating of gels on sapphire (0, 0 l ) faces as mentioned in this paper, showing faceted hexagonal grains with c-axis normal to the film plane.
Journal ArticleDOI
Topologically protected superconducting ratchet effect generated by spin-ice nanomagnets
V. Rollano,Álvaro Muñoz-Noval,Alicia Gomez,F. Valdés-Bango,José Ignacio Martín,María Vélez,M. R. Osorio,Daniel Granados,Elvira M. Gonzalez,Elvira M. Gonzalez,J. L. Vicent,J. L. Vicent +11 more
TL;DR: A robust superconducting ratchet device based on topologically frustrated spin ice nanomagnets that generates a unidirectional net vortex flow independent of the distribution of magnetic charges in the array.
Journal ArticleDOI
Magnetic vortex state and multi-domain pattern in electrodeposited hemispherical nanogranular nickel films
Alexander S. Samardak,E. V. Sukovatitsina,Alexey V. Ognev,Maksim E. Stebliy,A. V. Davydenko,Ludmila A. Chebotkevich,Young Keun Kim,Forough Nasirpouri,Seyed-Mehdi Janjan,Farzad Nasirpouri +9 more
TL;DR: In this paper, the magnetic states of nickel nanogranular films were studied in two distinct structures of individual and agglomerated granules electrodeposited on n-type Si(1/1) surface from a modified Watts bath at low pH of 2.
Magnetic small-angle neutron scattering of bulk ferromagnets: beyond the particle-matrix concept
TL;DR: Analysis of experimental magnetic-field-dependent SANS data of various nanocrystalline ferromagnets corroborates the usefulness of the approach, which provides important quantitative information on the magnetic-interaction parameters such as the exchange-stiffness constant, the mean magnetic anisotropy field, and the mean magnetostatic field due to jumps ΔM of the magnetization at internal interfaces.
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.
Journal ArticleDOI
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.
Journal ArticleDOI
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.