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glass phase
Nontrivial interference develops between the subsystems when (for certain values of the parameters) they can only slide into the spin-glass phase.
      
It is found that a transition to the dipole-glass phase with chaotic, spontaneous unit-cell dipole moments, characterized by the Edwards-Anderson nonlocal parameter, precedes the transition to the ferroelectric phase.
      
The theory predicts the appearence of stable fluctuon states in both the mixed ferroelectric-dipole-glass phase (a dipole glass is the electric analog of a spin glass) and the dipole-glass state of disordered ferroelectrics.
      
While the former phase possesses only a trivial fixed point, this point become unstable in the latter phase, which may be interpreted as a spin glass phase.
      
Nematic LC to nematic glass phase transition in pores
      
We present the derivation of new mean-field equations for the spin-glass order parameter and analyze the effects of screening of localized spins by conduction electrons on the spin-glass phase transition.
      
It is found that a spin-glass phase transition occurs in CaMn7O12 at TM = 49 K, whereas the transition at TS = 89 K exhibits the features of a first-order phase transition and thereby is apparently of structural origin.
      
Ultrasound relaxation during the transition of a CTSM crystal to the proton-glass phase
      
It is revealed that this crystal at the temperature Tg≈70 K undergoes a transition to the dipole glass phase, which is attended by "freezing" the orientation disordering of the ammonium ions.
      
The luminescence spectra of the impurity chromium measured in lithium germanate glasses containing LGO crystals revealed transitions in Cr3+ ions residing in the glass phase and in LGO crystallites starting from extremely small clusters.
      
The Vogel-Fulcher law as a criterion for identifying a mixed ferroelectric-glass phase in potassium tantalate doped with lithium
      
It is established that the Arrhenius law is valid for dipole glass phases, whereas the Vogel-Fulcher law holds true for a mixed ferroelectric-glass phase in which the short-range and long-range polar orders coexist.
      
The inference is made that the results of measurements of the dielectric response can be used to identify a mixed ferroelectric-glass phase in any disordered ferroelectric material.
      
The nonuniform distribution of Mn ions in the spin glass phase accounts for the existence of isolated ferromagnetic clusters, their ferromagnetism being generated by carrier-mediated exchange.
      
The magnetic irreversibility for T >amp;lt; TCO is accounted for by the existence of a mixture of the ferromagnetic and antiferromagnetic phases, as well as the cluster glass phase.
      
Crystal-glass phase transition induced by pulses of electric field in chalcogenide semiconductors
      
The dependence obtained is similar to that observed for crystal-glass phase transition induced by pulses of laser radiation.
      
As for the model with random on-site potential, the presence of disorder leads to the appearance of a Bose glass phase.
      
Breakdown of ferromagnetism occurs atxc=0.51, far above the percolation thresholdxp=0.136, and a spin-glass phase is observed in the intermediate concentration regime.
      
Both the density of statesg(E) and also the spectral functionS(q,E) are calculated for systems with (16)3 sites, withx=0.4, 0.5, and 0.6 (spin glass phase), and also forx≧0.7 (ferromagnetic phase).
      
 

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