LAUSR

Two-loop superstring five-point amplitudes. Part III. Construction via the RNS formulation: even spin structures

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1 Published in 2021 at "Journal of High Energy Physics"

DOI: 10.1007/jhep12(2021)063

Abstract: Abstract The contribution from even spin structures to the genus-two amplitude for five massless external NS states in Type II and Heterotic superstrings is evaluated from first principles in the RNS formulation. Using chiral splitting… read more here.

Keywords: loop superstring; spin structures; rns formulation; even spin ... See more keywords

Interface-driven unusual anomalous Hall effect in MnxGa/Pt bilayers

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1 Published in 2019 at "Physical Review B"

DOI: 10.1103/physrevb.100.184410

Abstract: The effects of spin-orbit coupling and symmetry breaking at the interface between a ferromagnet and heavy metal are particularly important for spin-based information storage and computation. Recent discoveries suggest they can create chiral spin structures… read more here.

Keywords: spin structures; mnxga bilayers; hall effect;

Nonclassicality of spin structures in condensed matter: An analysis of Sr14Cu24O41

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1 Published in 2019 at "Physical Review B"

DOI: 10.1103/physrevb.100.235103

Abstract: When two quantum systems are coupled via a mediator, their dynamics has traces of non-classical properties of the mediator. We show how this observation can be effectively utilised to study the quantum nature of materials… read more here.

Keywords: unpaired spins; spin structures; condensed matter; structures condensed ... See more keywords

Emergent topological spin structures in the centrosymmetric cubic perovskite SrFeO3

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0 Published in 2020 at "Physical Review B"

DOI: 10.1103/physrevb.101.134406

Abstract: The authors unveil topological spin structures composed of skyrmion strings in a cubic centrosymmetric iron oxide that provides the missing experimental link between centrosymmetric lattices and a rich variety of helimagnetic order. This is the… read more here.

Keywords: centrosymmetric cubic; spin structures; emergent topological; spin ... See more keywords

Spin structures and branch divisors on $p$-gonal Riemann surfaces

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1 Published in 2019 at "Rocky Mountain Journal of Mathematics"

DOI: 10.1216/rmj-2019-49-6-1769

Abstract: We study spin structures on Riemann and Klein surfaces in terms of divisors. In particular, we take a closer look at spin structures on hyperelliptic and $p$-gonal surfaces defined by divisors supported on their branch… read more here.

Keywords: structures branch; spin structures; divisors gonal; gonal riemann ... See more keywords