Narelle J Hillier

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We study a ferrofluid in a horizontal Hele-Shaw geometry subjected to a vertical magnetic field. Specifically, we calculate the energy of a single ferrofluid finger using an idealized model for the finger. By minimizing this energy, we find the preferred finger width as a function of the applied field. Our model predicts a first order transition as the(More)
N. J. Hillier,1 N. Foroozani,1 D. A. Zocco,2,3 J. J. Hamlin,2,4 R. E. Baumbach,2,5 I. K. Lum,2 M. B. Maple,2 and J. S. Schilling1,* 1Department of Physics, Washington University, CB 1105, One Brookings Dr., St. Louis, Missouri 63130, USA 2Department of Physics, University of California, San Diego, 9500 Gilman Dr., La Jolla, California 92093, USA 3Karlsruhe(More)
H. Banks,1 N. J. Hillier,1 J. S. Schilling,1,* J. Rohrkamp,2 T. Lorenz,2 J. A. Mydosh,3 T. Fickenscher,4 and R. Pöttgen4 1Department of Physics, Washington University, CB 1105, One Brookings Dr, St. Louis, Missouri 63130, USA 2II. Physikalisches Institut, Universität zu Köln, Zülpicher Strasse 77, 50937 Köln, Germany 3Kamerlingh Onnes Laboratory, Leiden(More)
It is well known that the superconducting transition temperature (T(c)) of cuprate superconductors can be enhanced by varying certain structural and electronic parameters, such as the flatness of the CuO₂ planes or their doping level. We determine the uniaxial and hydrostatic pressure derivatives of T(c) in the structurally simple tetragonal compound(More)
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