Results 31 to 40 of about 8,559 (233)
Giant Topological Hall Effect and Colossal Magnetoresistance in Heusler Ferromagnet near Room Temperature. [PDF]
Ferromagnetic shape memory Heusler alloy Ni2Mn1.4In0.6 exhibits colossal magnetoresistance (CMR) and giant topological Hall effect (THE) near room temperature, which is attributed to the enhanced spin chirality emerging from the formation of domains and domain walls, which in turn resulted from the combined effect of magnetic field induced martensite ...
Yanda P+13 more
europepmc +2 more sources
v3: final version prior to publication, examples added, corrections, numbering adapted, 47 pages, Math. Z. (2014)
Alldridge, A.+2 more
openaire +3 more sources
N=2$$ \mathcal{N}=2 $$ SYK model in the superspace formalism [PDF]
A bstractWe use superspace methods to study an SYK-like model with N=2$$ \mathcal{N}=2 $$ supersymmetry in one dimension, and an analog of this model in two dimensions. We find the four-point function as an expansion in the basis of eigenfunctions of the
K. Bulycheva
semanticscholar +1 more source
This letter provides a superfield based approach to constructing a collinear slice of $\mathcal{N}$ = 1 superspace. The strategy is analogous to integrating out anti-collinear fermionic degrees-of-freedom as was developed in the context of soft-collinear effective theory.
Cohen, Timothy+2 more
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Conformal (p, q) supergeometries in two dimensions
We propose a superspace formulation for conformal (p, q) supergravity in two dimensions as a gauge theory of the superconformal group OSp0(p|2; ℝ) × OSp0(q|2; ℝ) with a flat connection.
Sergei M. Kuzenko+1 more
doaj +1 more source
Schwinger-Keldysh formalism. Part I: BRST symmetries and superspace [PDF]
A bstractWe review the Schwinger-Keldysh, or in-in, formalism for studying quantum dynamics of systems out-of-equilibrium. The main motivation is to rephrase well known facts in the subject in a mathematically elegant setting, by exhibiting a set of BRST
Felix M. Haehl+2 more
semanticscholar +1 more source
Chern-Simons actions and their gaugings in 4D, N =1 superspace [PDF]
We gauge the abelian hierarchy of tensor fields in 4D by a Lie algebra g\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek ...
K. Becker+3 more
semanticscholar +1 more source
Superfield approach to interacting N = 2 massive and massless supermultiplets in 3d flat space
Massive arbitrary spin supermultiplets and massless (scalar and spin one-half) supermultiplets of the N = 2 Poincaré superalgebra in three-dimensional flat space are considered. Both the integer spin and half-integer spin supermultiplets are studied. For
R. R. Metsaev
doaj +1 more source
Crystallography and dynamics in superspace [PDF]
The discovery in materials of long range order without lattice periodicity has generated a very broad field of research with the introduction of totally new concepts. The common feature of this new state of matter is the translational symmetry recovered by adding supplementary dimensions to the physical space, defining a crystallographic superspace ...
Mariette, Céline+3 more
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Five-dimensional supergravity in N = 1/2 superspace
We construct 5D, N = 1 supergravity in a 4D, N = 1 superspace with an extra bosonic coordinate. This represents four of the supersymmetries and the associated Poincaré symmetries manifestly. The remaining four supersymmetries and the rest of the Poincaré
Katrin Becker+4 more
doaj +1 more source