Results 21 to 30 of about 3,762 (206)

On the Ordering Mechanism of Cu<sup>+</sup> in 2D van der Waals Multiferroic CuCrP<sub>2</sub>S<sub>6</sub>. [PDF]

open access: yesAdv Sci (Weinh)
Temperature‐dependent X‐ray single‐crystal diffuse scattering measurements of CuCrP2S6 in the (H, K, 0) plane reveal the gradual emergence and strengthening of short‐range order upon cooling from 230 to 170 K. At intermediate temperatures, diffuse features become pronounced and eventually lock into sharp incommensurate satellite reflections, indicating
Guo J   +5 more
europepmc   +2 more sources

NeuDiff Agent: a governed AI workflow for single-crystal neutron crystallography. [PDF]

open access: yesJ Appl Crystallogr
NeuDiff Agent accelerates the TOPAZ single‐crystal neutron diffraction workflow at the Spallation Neutron Source from measured data to a structure suitable for publication through governed tool execution, auditable provenance and checkCIF assessment.Large‐scale facilities increasingly face analysis and reporting latency as a limiting step in scientific
Xiao Z, Zhang L, Zhang G, Wang X.
europepmc   +2 more sources

Modulation of the modulated magnetic structure of an Ho i-MAX phase described by a magnetic (3+2)-dimensional superspace group. Corrigendum. [PDF]

open access: yesActa Crystallogr B Struct Sci Cryst Eng Mater
Corrigendum to Acta Cryst. (2025), B81, 37–46.The name of one of the authors in the article by Colin et al.[Acta Cryst. (2025), B81, 37–46] is corrected.
Colin CV   +6 more
europepmc   +2 more sources

Superspaces and supersymmetries [PDF]

open access: yesCommunications in Mathematical Physics, 1981
A theory of graded Banach modules over a Banach-Grassmann algebra is developed and applied to differential geometry of super-manifolds. The explicit structure of superspaces carrying Poincare supersymmetry and extended supersymmetry, including central charges, is described.
Jadczyk, A., Pilch, K.
openaire   +4 more sources

Exploring oxide quasicrystals in internal space. [PDF]

open access: yesActa Crystallogr A Found Adv
The internal space expansion with variable system size is investigated for three different oxide quasicrystal systems. Patches of 7800, 4800 and 3600 vertices are examined in Ba–Ti–O/Pt(111), Eu–Ti–O/Pd(111) and Sr–Ti–O/Pd(111), respectively. This internal space inspection provides unique structural information for quasicrystalline systems, which goes ...
Schenk S   +3 more
europepmc   +2 more sources

The Spin group in superspace

open access: yesJournal of Geometry and Physics, 2021
28 ...
De Schepper, Hennie   +2 more
openaire   +4 more sources

Magnetic structure determination of multiple phases in the multiferroic candidate GdCrO<sub>3</sub>. [PDF]

open access: yesActa Crystallogr B Struct Sci Cryst Eng Mater
Using neutron powder diffraction, the successive magnetic structures in multiferroic candidate GdCrO3 have been determined, including a complex incommensurate phase below 2.3 K. The symmetry analysis uses a combination of little group formalism and superspace group approach highlighting the strength of each method and the results are reported using the
Manuel P   +7 more
europepmc   +2 more sources

The Superspace of geometrodynamics [PDF]

open access: yesGeneral Relativity and Gravitation, 2009
Wheeler's Superspace is the arena in which Geometrodynamics takes place. I review some aspects of its geometrical and topological structure that Wheeler urged us to take seriously in the context of canonical quantum gravity.
openaire   +3 more sources

N=2 central charge superspace and a minimal supergravity multiplet [PDF]

open access: yes, 1998
We extend the notion of central charge superspace to the case of local supersymmetry. Gauged central charge transformations are identified as diffeomorphisms on the same footing as spacetime diffeomorphisms and local supersymmetry transformations.
Akemann, G   +10 more
core   +1 more source

Surface operators in superspace [PDF]

open access: yesJournal of High Energy Physics, 2020
Abstract We generalize the geometrical formulation of Wilson loops recently introduced in [1] to the description of Wilson Surfaces. For N = (2, 0) theory in six dimensions, we provide an explicit derivation of BPS Wilson Surfaces with non-trivial coupling to scalars, together with their manifestly supersymmetric version. We derive
C. A. Cremonini, P. A. Grassi, S. Penati
openaire   +5 more sources

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