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.
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Controlling the Suhl instability: a numerical study
TL;DR: In this article, the authors show that the Suhl instability can be suppressed by choosing the applied field and/or sphere diameter in such a way that the frequencies of the modes that can be excited through non-linear processes are off-resonance.
Journal ArticleDOI
Ultrasonic measurements in sinter-forged high T/sub c/ superconductor YBa/sub 2/Cu/sub 3/O/sub 7- delta /
M.F. Xu,A. Schenstrom,Y. Hong,D. Bein,B.K. Sarma,M. Levy,Z. Zhao,Shireen Adenwalla,André Moreau,Q. Robinson,D. L. Johnson,Shiou-Jyh Hwu,K.R. Poeppelmeier,John B Ketterson +13 more
TL;DR: In this paper, both attenuation and velocity as a function of temperature from 4.2 K to room temperature were measured on sinter-forged samples of YBa/sub 2/Cu/sub 3/O/sub 7- delta /, which have more than 80% alignment of the c-axis of the grains parallel to the forging axis.
Book
Superconductivity in nanostructures, high-T[c] and novel superconductors, organic superconductors
K H Bennemann,John B Ketterson +1 more
TL;DR: In this article, the authors present an overview of the history of superconductivity in high-temperature superconductors and their application in the field of superfluid 3He and Cuprate Superconductors.
Journal ArticleDOI
Current–voltage characteristics of Nb–carbon–Nb junctions
TL;DR: In this paper, the authors report on properties of Nb(/Ti)-carbon-Nb junctions fabricated on graphite flakes using e-beam lithography at temperatures above 1.8 K where a Josephson current was not observed.
Journal ArticleDOI
Demagnetization experiments on some promising new compounds for very low-temperature refrigeration
TL;DR: In this paper, the magnetic properties of demagnetized powders of four different compounds, including pure and lanthanum-diluted cerium magnesium nitrate (CMN) and triphenyl phosphine oxide (PHO), were investigated.