Robert B. Hallock
Massachusetts Institute of Technology
5 Papers
38 Citations
Robert B. Hallock is an academic researcher from Massachusetts Institute of Technology. The author has contributed to research in topics: Thin film & Barium. The author has an hindex of 3, co-authored 5 publications.
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Papers
Effect of growth conditions on the properties and morphology of chemically derived epitaxial thin films of Ba2YCu3O7−x on (001) LaAlO3
Paul C. McIntyre,Michael J. Cima,John A. Smith,Robert B. Hallock,Michael P. Siegal,Julia M. Phillips +5 more
TL;DR: In this paper, a superconducting film of 70 nm thickness with zero-field critical current densities greater than 5×106 A/cm2 at 77 K and zero resistance at 92 K was prepared by annealing at 780 and 830 °C in 2.5 × 10−4−1 × 10 −3 atm oxygen furnace atmospheres.
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X-Ray Powder Diffraction Data for BaCu(C2O4)2·6H2O
TL;DR: An indexed powder diffraction pattern and related crystallographic data are reported for a new phase, BaCu(C 2 O 4 ) 2 ·6H 2 O, which was a major product in the coprecipitation of barium and copper oxalates as discussed by the authors.
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Ba2YCu3O7−x Thin Films with Jc>105 A/cm2 at 77 K Prepared by Metalorganic Deposition at Reduced Oxygen Pressure
TL;DR: In this paper, superconducting Ba2YCu3O7-x films 0.1-0.2 μm thick were prepared by spin coating a methanol solution of Ba, Y and Cu acrylates on (100)LaAlO3 and firing to 800°C in a total pressure of 1 mm O2.
1
Polyfunctional Carboxylic Acids as Coprecipitating Agents For Barium, Yttrium, and Copper
TL;DR: In this article, the suitability of several polyfunctional carboxylic acids as coprecipitating agents for Ba, Y, and Cu was investigated, and the amorphous precipitate formed under these conditions was composed of uniform particles about 50 nm in diameter.