Zobrazeno 1 - 10
of 31
pro vyhledávání: '"E. L. VENTURINI"'
Autor:
G. A. Samara, E. L. Venturini
Publikováno v:
Phase Transitions. 79:21-40
A significant result from research on the influence of hydrostatic pressure on the dielectric properties of compositionally disordered ABO3 perovskites has been the discovery of a pressure-induced ferroelectric(FE)-to-relaxor (R) crossover making the
Publikováno v:
Journal of Applied Physics. 73:7571-7574
The thickness dependence of electrodynamic properties of Tl2Ca2Ba2Cu3Ox films has been examined after correction for geometrical effects. The surface resistance increases for very thin or thick films as is consistent with the presence of a poorly sup
Publikováno v:
Journal of Applied Physics. 71:5059-5069
The transport of electronic carriers across grain boundaries in n‐ and p‐type silicon has been measured as a function of magnetic field in the presence of a microwave field. The spin‐dependent‐transport (SDT) signal is observed to have a dist
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms. 65:IN9-538
Irradiation effects on Tl- and Y-based high temperature superconductors (HTS) are compared. Ion irradiation can enhance the critical current density (Jc) at low fluences through the interaction of defects with the flux lattice, and at higher fluences
Autor:
E. L. Venturini, Seunghun Lee, Lynn A. Boatner, George A. Samara, S. Wakimoto, Gen Shirane, Guo Qin Xu, Robert Grubbs
Publikováno v:
Physical Review B. 74
Relaxor behavior and lattice dynamics have been studied by employing dielectric measurements and neutron-scattering methods for a single crystal of ${\mathrm{K}}_{1\ensuremath{-}x}{\mathrm{Li}}_{x}\mathrm{Ta}{\mathrm{O}}_{3}$ $(x=0.05)$, where a smal
Publikováno v:
AIP Conference Proceedings.
The influence of pressure on the dielectric properties and phase behavior was investigated for two substituted single crystals of SrTiO3: (a) 18O exchanged SrTi18O3 [STO‐18] and (b) lightly doped Sr1−xCaxTiO3 with x = 0.007 [SCT (0.007)]. The 18O
Publikováno v:
Physical Review B. 64
The thermal-to-quantum flux creep crossover at low vortex densities has been studied in YBa2Cu3O7, TlBa2CaCu2O7-delta, and HgBa2CaCu2O6+delta thin films using ac susceptibility. The crossover tempe ...
Publikováno v:
Applied Physics Letters. 60:1732-1734
Microwave resonance induced variations in the short circuit photocurrent of edge‐defined film‐fed growth ribbon silicon solar cells have been observed. These signals have zero‐crossing g values and linewidths which are similar to electron spin
Powder compacts of HgO were subjected to explosively-generated shock-wave loading in Sandia Bear fixtures and recovered for analysis. Although XRD powder spectra show only the orthorhombic form of HgO in both the as-received and recovered samples, XR
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::69ab2846412e4f5d745e5d28a3e74ba5
https://doi.org/10.2172/113986
https://doi.org/10.2172/113986
Publikováno v:
AIP Conference Proceedings.
The temperature and frequency dependences of the dielectric functions and ac conductivities (σac) of several boron carbide compositions in the single phase region (9–20 at %C) have been investigated. The low temperature (