Continuum electrodynamics of type-II superconductors in the mixed state: The dc and ac response

Cognitive Functions in Euthymic Bipolar Patients and Lithium

“…Both in the present study and in other authors' results remitted bipolar patients have verbal and nonverbal memory disturbances [4] compared to healthy controls. Those results are consistent through various data [49], a wide spectrum of executive dysfunctions, memory and attention was detected in remitted bipolars [25]. The results of our study are consistent with those of Sole et al [60] who reported that bipolar patients showed a significantly lower performance on several measures of attention, learning and verbal memory, and executive function compared with healthy controls.…”

“…There was no difference in premorbid intelligence and vocabulary. Some dysfunctions in remitted patients [49] are similar to those observed in patients in acute phase. Cognitive deficits are regarded by several authors as trait-markers or their background (genetic, developmental or associated with illness progression) remains to be evaluated [4].…”

Peak effect in a superconductingDyBa2Cu3O7−Bhangale1, Raychaudhuri2, Sarkar3 et al. 2001Phys. Rev. B132180View full textAdd to dashboardCite

“…At low frequencies (Ӷ p ), the vortex impedance is mostly inductive and dominated by pinning; at high frequencies (ӷ p ), the dynamics of the FLL is mostly resistive with pinning playing a very minor role. There have been few studies [11][12][13][14][15]17 on the dynamics of the FLL in the microwave and radio frequency regime. However, there have been no reports pertaining to the observation of the PE at microwave frequencies in either a low T c or a high T c superconductor.…”

“…By studying the frequency response of the superconductor in the mixed state, Placais and co-workers 14,15 argue that the vortices in a single crystal of YBCO are held by surface pinning, while they are free to move inside the bulk. Their experiments were, however, restricted to a narrow temperature range close to T c , which is higher than the range of temperature where we have observed a nonmonotonic behavior in R s .…”

Microwave response and spin waves in superconducting ferromagnets

“…In the presence of normal currents, one should be careful about the form of the Lorentz force, so that the Onsager relations are not violated. 16 A plausible assumption is that the Lorentz force depends only on the superconducting current density. With all these considerations taken into account, the vortex dynamics is described by…”