R
Rosario A. Gerhardt
Researcher at Georgia Institute of Technology
Publications - 207
Citations - 4606
Rosario A. Gerhardt is an academic researcher from Georgia Institute of Technology. The author has contributed to research in topics: Dielectric & Thin film. The author has an hindex of 31, co-authored 202 publications receiving 4123 citations. Previous affiliations of Rosario A. Gerhardt include University of Colorado Colorado Springs & Colorado School of Mines.
Papers
More filters
Journal ArticleDOI
Impedance and dielectric spectroscopy revisited: Distinguishing localized relaxation from long-range conductivity
TL;DR: In this paper, the advantages of plotting a.c. data in terms of impedance, electric modulus, and dissipation factor simultaneously are illustrated, and the degree to which these assignments may be made is related to the dielectric relaxation ratio ( r = ϵ s ϵ ∞ ) and the differences between the time constants of the different relaxation processes present in the material being examined.
Journal ArticleDOI
Synthesis and Structure Characterization of Copper Terephthalate Metal–Organic Frameworks
Cantwell G. Carson,Kenneth I. Hardcastle,Justin Schwartz,Justin Schwartz,Xiaotao Liu,Christina Hoffmann,Rosario A. Gerhardt,Rina Tannenbaum,Rina Tannenbaum +8 more
TL;DR: In this paper, a high-throughput solvothermal method for the synthesis of copper terephthalate metal-organic frameworks in dmf was reported, where the structure of MOF-2 and some of the associated polymorphs are well known.
Journal ArticleDOI
Grain‐Boundary Effect in Ceria Doped with Trivalent Cations: I, Electrical Measurements
Rosario A. Gerhardt,A.S. Nowick +1 more
TL;DR: In this paper, the effect of the grain boundary effect on dc ionic conductivity was studied for ceria ceramics doped with trivalent dopants (Y3+, Gd3+, and La3+).
Journal ArticleDOI
Calculation of various relaxation times and conductivity for a single dielectric relaxation process
Wanqing Cao,Rosario A. Gerhardt +1 more
TL;DR: In this paper, it was shown that the loss tangent relaxation time is equal to the average relaxation time for any pair of inverse complex functions, e.g., ϵ∗ and M∗, Z ∗ and Y∗.
Journal ArticleDOI
Enhanced dielectric properties of polymer matrix composites with BaTiO3 and MWCNT hybrid fillers using simple phase separation
TL;DR: In this article, the dielectric properties of the polymer matrix nanocomposites with hybrid fillers were improved by optimizing the synergistic effects between the charge storage behavior of the ferroelectric phase and the charge transport behaviour of the conductive phase.