Results 31 to 40 of about 1,899,870 (154)
LATTICE STABILITY AND SOFT MODES
, 1982 Relationships between displacive phase transitions and soft modes are discussed and illustrated using experimental examples. Ferroelectric and ferroelastic transitions are dealed with together with the "band-Jahn-Teller" and antiferromagnetic transitions
A. Nagasawa, N. Nakanishi, Y. Murakami
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Soft topological modes protected by symmetry in rigid mechanical metamaterials [PDF]
, 2021 Topological mechanics can realize soft modes in mechanical metamaterials in which the number of degrees of freedom for particle motion is finely balanced by the constraints provided by interparticle interactions.
Souslov, Anton +2 more
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Anomalous neutron scattering and ferroelectric soft modes
, 1977 It is suggested that anomalous neutron scattering could prove a powerful experimental tool in studying ferroelectric phase transition, the sublattice displacements of the soft modes as well as their symmetry ...
Viswanathan, K. S.
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Physical Review X, 2022 Systems with low mechanical dissipation are extensively used in precision measurements such as gravitational wave detection, atomic force microscopy, and quantum control of mechanical oscillators via optomechanics and electromechanics.
Mohammad J. Bereyhi +6 more
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Soft modes and structural phase transitions
, 1979 This paper presents a survey of soft modes and their relationship to structural phase transitions. After introducing the concept of a soft mode, the origin of softening is considered from a lattice-dynamical point.
Venkataraman, G.
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, 2019 Soft robotic grippers enable gentle, adaptive, and bioinspired manipulation that is simply not possible using traditional rigid robots. However, it has remained challenging to create multi-degree-of-freedom soft actuators with appropriate sensory ...
Katzschmann, Robert Kevin +7 more
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Entanglement, soft modes, and celestial CFT
Journal of High Energy PhysicsWe revisit the calculation of vacuum entanglement entropy in free Maxwell theory in four-dimensional Minkowski spacetime. Weyl invariance allows for this theory to be embedded as a patch inside the Einstein static universe. We use conformal inversions to
Hong Zhe Chen +2 more
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Soft modes contribution into path integral
, 1993 A method for nonperturbative path integral calculation is proposed. Quantum mechanics as a simplest example of a quantum field theory is considered. All modes are decomposed into hard (with frequencies $omega^2 >omega^2_0$) and soft (with frequencies ...
Belyaev, Vladimir
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Effect of instantaneous and continuous quenches on the density of vibrational modes in model glasses [PDF]
, 2017 Computational studies of supercooled liquids often focus on various analyses of their "underlying inherent states" - the glassy configurations at zero temperature obtained by an infinitely fast (instantaneous) quench from equilibrium supercooled states ...
Bouchbinder, E. +2 more
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Origin of Terahertz Soft-Mode Nonlinearities in Ferroelectric Perovskites
Physical Review X, 2021 Soft modes are intimately linked to structural instabilities and are key for the understanding of phase transitions. The soft modes in ferroelectrics, for example, map directly the polar order parameter of a crystal lattice.
Shovon Pal +6 more
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