Results 51 to 60 of about 1,314,774 (198)
Coherent spin relaxation in molecular magnets
, 2008 Numerical modelling of coherent spin relaxation in nanomagnets, formed by magnetic molecules of high spins, is accomplished. Such a coherent spin dynamics can be realized in the presence of a resonant electric circuit coupled to the magnet.
A. Abraham +24 more
core +1 more source
Peculiarities of the process of switching polarization in polycrystalline thin films of lead zirconate-titanate [PDF]
Физико-химические аспекты изучения кластеров, наноструктур и наноматериалов, 2018 The paper presents the results of a study of relaxation of the dielectric permittivities in constant electric fields upon switching the polarization of thin films of lead zirconate-titanate, crystallized at different annealing temperatures.
V.V. Ivanov +5 more
doaj +1 more source
Various time-scales of relaxation [PDF]
Physical Review D, 2016 Via gauge-gravity duality, relaxation of far-from-equilibrium initial states in a strongly coupled gauge theory has been investigated. In the system we consider in this paper there are two ways where the state under study can deviate from its equilibrium: anisotropic pressure and time-dependent expectation value of a scalar operator with =3.
Ali-Akbari, M. +3 more
openaire +2 more sources
Relaxation times of non-Markovian processes [PDF]
Physical Review A, 1987 We consider a general class of non-Markovian processes defined by stochastic differential equations with Ornstein-Uhlenbeck noise. We present a general formalism to evaluate relaxation times associated with correlation functions in the steady state. This formalism is a generalization of a previous approach for Markovian processes.
CASADEMUNT J +4 more
openaire +4 more sources
Molecular mobility in crystallising aromatic thermoplastic polyimide R-BAPS
Physics of Complex Systems, 2020 The molecular mobility of the thermoplastic aromatic R-BAPS polyimide films based on 1,3-bis (3,3’-4,4’-dicarboxyphenoxy) benzene (dianhydride) and 4,4’-bis (4-aminophenoxy) biphenyl was studied using the dielectric method.
Наталья Алексеевна Никонорова +2 more
doaj +1 more source
Internal friction caused by migration of the intercrystalline boundary in the metal
Физико-химические аспекты изучения кластеров, наноструктур и наноматериалов, 2022 The model of internal friction at the migrating intercrystalline boundary is considered. Under the action of an alternating external stress oriented normally to the boundary, compression and stretching of the mating crystallites occurs.
V.G. Kul’kov, V.V. Kul’kova
doaj +1 more source
Application of Resonance Perturbation Theory to Dynamics of Magnetization in Spin Systems Interacting with Local and Collective Bosonic Reservoirs [PDF]
, 2011 We apply our recently developed resonance perturbation theory to describe the dynamics of magnetization in paramagnetic spin systems interacting simultaneously with local and collective bosonic environments.
A Redondo +13 more
core +1 more source
, 2018 Quantitative nuclear magnetic resonance imaging (MRI) shifts more and more into the focus of clinical research. Especially determination of relaxation times without/and with contrast agents becomes the foundation of tissue characterization, e.g.
Bauer, Wolfgang Rudolf +2 more
core +1 more source
Long time stress relaxation of amorphous networks under uniaxial tension: The Dynamic Constrained Junction Model [PDF]
, 2008 Poly-isoprene networks with different degrees of cross-linking and filler amount are studied under uniaxial stress relaxation. Time decay of stress obeys a stretched exponential form with a stretching parameter of 0.4 that is same for all independent ...
Erman, Burak +4 more
core +3 more sources
Observation of two relaxation mechanisms in transport between spin split edge states at high imbalance [PDF]
, 2003 Using a quasi-Corbino geometry to directly study electron transport between spin-split edge states, we find a pronounced hysteresis in the I-V curves, originating from slow relaxation processes.
A. Berg +25 more
core +1 more source