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Welcome to the website of Dr. A. de Visser. I am member of the Hard Condensed Matter group at the Van der Waals-Zeeman Institute for Experimental Physics, which is part of the Institute of Physics of the Faculty of Science, University of Amsterdam. My research field is Quantum Electron Matter, with a focus on strongly correlated electron phenomena, notably quantum criticality and unconventional superconductivity. On this site you will find a brief description of research projects, an outline of experimental facilities, group members and scientific output. Recent publications and theses are available as pdf files.

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Superconductivity in the doped topological insulator CuxBi2Se3 under high pressure: Phys. Rev. Lett. 108 (2012) 057001.
Anomalous spin distribution in the superconducting ferromagnet UCoGe studied by polarized neutron diffraction: Phys. Rev. B Rapid Comm. 81 (2010) 180407R.
Superconducting ferromagnets: In: Encyclopedia of Materials: Science and Technology, Eds K.H.J. Buschow et al. (Elsevier, Oxford, 2010), pp. 1-6.
FOM Press release 2009/26 (in Dutch): Hoge druk versterkt supergeleiding in ferromagneet.
Enhancement of superconductivity near the ferromagnetic quantum critical point in UCoGe: Phys. Rev. Lett. 103 (2009) 097003.
Muon spin rotation and relaxation in the superconducting ferromagnet UCoGe: Phys. Rev. Lett. 102 (2009) 167003.
New ferromagnetic superconductor UCoGe discovered.