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Allen M. Hermann
Researcher at University of Arkansas
Publications - 54
Citations - 3798
Allen M. Hermann is an academic researcher from University of Arkansas. The author has contributed to research in topics: Superconductivity & High-temperature superconductivity. The author has an hindex of 21, co-authored 54 publications receiving 3721 citations. Previous affiliations of Allen M. Hermann include MRIGlobal & University of Arkansas at Little Rock.
Papers
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Journal ArticleDOI
Magnetization of the 120-K Tl-Ca-Ba-Cu-O superconductor.
Patent
High temperature T1-Ba-Ca-Cu-O and T1-Sr-Cu-O superconductor
Allen M. Hermann,Z.Z. Sheng +1 more
TL;DR: In this article, a new high temperature superconductor with transition temperature above 120 K was proposed, which is known as T1RBaCuO, where R is chosen from Group 2A elements excluding Ba.
Journal ArticleDOI
Bulk Superconductivity at 120 K in the Tl‐Ca/Ba‐Cu‐O System.
Z.Z. Sheng,Allen M. Hermann +1 more
TL;DR: In this paper, stable and reproducible bulk superconductivity with an onset at 120 K and zero resistance above 100 K in the Tl-Ca/Ba-Cu-O system was reported.
Journal ArticleDOI
Effect of Cu deficiency on the defect levels of Cu0.86In1.09Se2.05 determined by spectroscopic ellipsometry
TL;DR: In this article, the authors measured the defect levels of off-stoichiometric or heavily doped semiconductors by spectroscopic ellipsometry at room temperature and found that shallow defect states are found in the subband-gap region.
Patent
Melt-produced high temperature rare earth barium copper oxide superconductor and processes for making same
Allen M. Hermann,Z.Z. Sheng +1 more
TL;DR: In this article, a process for the fabrication of high temperature superconductors of arbitrary shape is described, which is based on the reaction between molten barium-copper oxides and solid rare earth oxides, rare earth barium oxides or rare earth copper oxides.