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Limit of Field Effect Mobility on Pentacene Single Crystal
V. Y. Butko, X. Chi, D. V. Lang +1
We report on fabrication and characterization of field effect transistors (FETs) on single-crystal pentacene. These FETs exhibit hole conductivity with room temperature effective m…
The Kagome-staircase lattice: Magnetic ordering in Ni3V2O8 and Co3V2O8
N. Rogado, G. Lawes, D. A. Huse +2
Ni3V2O8 and Co3V2O8 have spin-1 and spin-3/2 magnetic lattices that are a new anisotropic variant of the Kagome net, wherein edge-sharing MO6 octahedra form the rises and rungs of…
Colossal Dielectric Constants in Braced Lattices with Defects
A. P. Ramirez, G. Lawes, V. Butko +2
The dielectric constant of CaCu3Ti4O12 is measured with a different electrode geometry than previous measurements. Similar colossal values are obtained showing that they are "intri…
Soft spin waves in the low temperature thermodynamics of Pr_{0.7}Ca_{0.3}MnO_{3}
M. Roy, J. F. Mitchell, A. P. Ramirez +1
We present a detailed magnetothermal study of Pr(0.7)Ca(0.3)MnO(3), a perovskite manganite in which an insulator-metal transition can be driven by magnetic field, but also by press…