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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Proceedings ArticleDOI
Ultrasonic attenuation measurements of the flux lattice phase transition in the heavy fermion superconductor UPt/sub 3/
Shireen Adenwalla,Z. Zhao,John B Ketterson,D. G. Hinks,A. Schenstrom,Y. Hong,M.-F. Xu,M. Levy,Bimal K. Sarma +8 more
TL;DR: In this paper, the authors show that longitudinal ultrasound in superconducting UPt/sub 3/ shows a peak, below H/sub c2/, that depends strongly on the orientation of the field relative to the c-axis.
Journal ArticleDOI
Magnetic-field-dependent sound attenuation in UPt3
A. Schenstrom,M. F. Xu,Y. Hong,Moises Levy,Bimal K. Sarma,Shireen Adenwalla,Z. Zhao,John B Ketterson,David G. Hinks +8 more
TL;DR: In this article, the authors measured the attenuation of transverse sound along the c axis of UPt 3 and showed that the peak in attenuation, which has previously been observed in longitudinal sound measurements vs. magnetic field in the superconducting state, is absent in the transversal sound measurements.
Journal ArticleDOI
High temperature ferromagnetism of Si/MnAs multilayers grown by molecular beam epitaxy
TL;DR: In this paper, high-temperature (>400 K) ferromagnetism in multilayers consisting of nonmagnetic Si and ferromagnetic MnAs, grown on GaAs by molecular beam epitaxy, was reported.
Journal ArticleDOI
Magnetization and sound velocity measurements near the antiferromagnetic transition in the heavy fermion system UPt3
S. Adenwallal,S. W. Line,Q. Z. Ran,Jia Qi Zheng,M. F. Xu,K. J. Sun,D. G. Hinks,John B Ketterson,Moises Levy,Bimal K. Sarma +9 more
TL;DR: In this article, the authors present measurements in the vicinity of the antiferromagnetic transition of both the sound velocity and magnetisation of UPt3 superconductor, and show that the superconducting transition at 0.5 K corresponds to an antiferrous transition at 5 K.
Journal ArticleDOI
Superconducting phase diagram of UPt3
TL;DR: In this paper, the authors present the first complete phase diagram of the heavy fermion superconductor UPt 3 based on a single measurement on a one sample, and show that there is a tetracritical point on the H c 2 curve.