J
John B Ketterson
Researcher at Northwestern University
Publications - 823
Citations - 18004
John B Ketterson is an academic researcher from Northwestern University. The author has contributed to research in topics: Thin film & Superconductivity. The author has an hindex of 60, co-authored 814 publications receiving 16929 citations. Previous affiliations of John B Ketterson include University of Virginia & University of California, Los Angeles.
Papers
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Infrared-pump electronic-probe of methylammonium lead iodide reveals electronically decoupled organic and inorganic sublattices
Peijun Guo,Arun Mannodi-Kanakkithodi,Jue Gong,Yi Xia,Constantinos C. Stoumpos,Duyen H. Cao,Benjamin T. Diroll,John B Ketterson,Gary P. Wiederrecht,Tao Xu,Maria K. Y. Chan,Mercouri G. Kanatzidis,Richard D. Schaller,Richard D. Schaller +13 more
TL;DR: The results suggest that the attractive optoelectronic properties of CH3NH3PbI3 mainly derive from the inorganic lead-halide framework, and employ infrared-pump electronic-probe spectroscopy to show that pump-induced atomic motions of the organic cations do not substantially alter optoelection properties.
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Ferromagnetic resonance study of eightfold artificial ferromagnetic quasicrystals
V. S. Bhat,Joseph Sklenar,Barry Farmer,Justin Woods,John B Ketterson,Jeffrey Todd Hastings,L. E. De Long +6 more
TL;DR: In this paper, the authors performed broadband and narrowband FMR measurements on permalloy thin films patterned with quasiperiodic Ammann tilings having eightfold rotational symmetry.
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Contact angle of lead stearate-covered water on mica during the deposition of Langmuir-Blodgett assemblies
TL;DR: In this paper, the dynamic and static contact angles between the monolayer-covered water surface and a mica substrate during the deposition of successive monolayers of lead stearate were measured from the output of the balance.
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Very low temperature search for superconductivity in Pd, Pt, and Rh
TL;DR: In this article, a search for superconductivity in high-purity specimens of Pd, Pt, and Rh at temperatures down to ∼1.7mK and for fields less than 1.7 mG was made.
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Near-field and far-field electric dipole radiation in the vicinity of a planar dielectric half space
TL;DR: In this paper, the authors used the full Sommerfeld integral formalism as well as an asymptotic formalism to study the near and far-field radiation patterns of an electric dipole in the vicinity of a planar dielectric half space.