Results 21 to 30 of about 28,459 (271)
Modulation of the modulated magnetic structure of an Ho i-MAX phase described by a magnetic (3+2)-dimensional superspace group. [PDF]
Acta Crystallogr B Struct Sci Cryst Eng MaterA rare complex incommensurate magnetic structure, an amplitude‐modulated structure which itself is modulated, was determined in the Ho‐based i‐MAX phase (Mo2/3Ho1/3)2GaC. It represents a particularly distinctive case of a 2‐k magnetic structure with no symmetry relation between the propagation vectors.The magnetic structures of the Ho‐based i‐MAX phase
Colin CV +6 more
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The incommensurate composite YxOs4B4 (x = 1.161). [PDF]
Acta Crystallogr B Struct Sci Cryst Eng MaterTetragonal YxOs4B4 (x = 1.161) is an incommensurate composite of columns of Y atoms in a three‐dimensional Os4B4 framework. The structure was refined using the superspace approach.YxOs4B4 (x = 1.161) crystallizes as a tetragonal incommensurate composite of columns of Y atoms extending along [001] in an Os4B4 framework.
Stöger B, Sologub O, Salamakha L.
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<i>MagStREXS</i>, a crystallographic computer program to determine magnetic structures through resonant elastic X-ray scattering data. I. Fundamental equations. [PDF]
J Appl CrystallogrThis article presents the fundamental concepts and equations implemented in the program MagStREXS to determine magnetic structures based on resonant elastic X‐ray scattering diffraction data.Resonant elastic X‐ray scattering (REXS) is an experimental technique that can be highly valuable for studying magnetic structures in certain scenarios.
Bereciartua PJ +2 more
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Quantum Cosmology with Third Quantisation
Universe, 2021 We reviewed the canonical quantisation of the geometry of the spacetime in the cases of a simply and a non-simply connected manifold. In the former, we analysed the information contained in the solutions of the Wheeler–DeWitt equation and showed their ...
Salvador J. Robles-Pérez
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Journal of High Energy Physics, 2008 17 pages, revised ...
Baulieu, Laurent, Martin, Alexis
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Holography in superspace [PDF]
Journal of High Energy Physics, 2000 36 pages, LaTeX, references ...
Ooguri, Hirosi +3 more
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Radiation Field on Superspace [PDF]
, 1995 We study the dynamics of multiwormhole configurations within the framework of the Euclidean Polyakov approach to string theory, incorporating a modification to the Hamiltonian which leads to a Planckian probability measure for the Coleman parameters $ $ that allows $\frac{1}{2} ^{2}$ to be interpreted as the energy of the quanta of a radiation field ...
Pedro F. González-Dı́az
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Vandermondes in superspace [PDF]
Transactions of the American Mathematical Society, 2019 Superspace of rank n n is a Q \mathbb {Q} -algebra with n n commuting generators x 1 , … , x n
B. Rhoades, A. Wilson
semanticscholar +1 more source
Superspaces and supersymmetries [PDF]
Communications 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.
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Crystal tensor properties of magnetic materials with and without spin-orbit coupling. Application of spin point groups as approximate symmetries. [PDF]
Acta Crystallogr A Found AdvWe have studied the constraints that the spin group symmetry imposes on the most important crystal tensors, on the basis of a generalization of the Neumann principle to spin point groups. Some examples of real materials are presented, and their tensor forms under the spin and magnetic point groups are compared.Spin space groups, formed by operations ...
Etxebarria J +3 more
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