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John Beamish

Cursus :

John Beamish began studying solid helium and dislocations as a graduate student at the University of Alberta, where he received his Ph.D. in 1982. His interest in quantum solids continued while he was a post-doctoral fellow at Brown University, a faculty member at the University of Delaware, and after he returned to the University of Alberta in 1991, where he is now a professor of physics. He also spent time as a visiting professor at the Pennsylvania State University and at Cornell University. In addition to supersolidity and quantum solids, his research interests include acoustics, freezing, and other phase transitions in confined liquids, superfluidity, and the low-temperature properties of aerogels and other porous glasses.

Publications :

- Low Temperature Shear Modulus Changes in Solid 4He and Connection to Supersolidity. J. Day and J.R. Beamish, Nature

- Role of Shear Modulus and Statistics in the Supersolidity of Helium. J.T. West, O. Syshchenko, J. Beamish and M.H.W. Chan. Nature Physics

- Nonlinear Elastic Behavior in Solid Helium: Critical Velocity or Strain? J. Day, O. Syshchenko and J. Beamish. Phys.

- Frequency Dependence and Dissipation in the Dynamics of Solid Helium. O. Syshchenko, J. Day and J. Beamish. Phys.

- Pressure-driven Flow of Solid Helium. J. Day and J.R. Beamish. Phys. Rev.

Affiliation : University of Alberta, Canada - Department of physics

Statut : Professeur

Liens :

   - University of Alberta, Canada - Department of physics
   - Page personnelle de John Beamish sur le site du département de physique de l'université Alberta Canada

Exposé(s) :
Solid Helium : Supersolidity or Quantum Plasticity ?
John Beamish

"Helium is a quantum material. Its zero point motion prevents it from freezing and liquid helium becomes a superfluid at temperatures below 2 K. It can be frozen by applying pressure but it is a very quantum mechanical solid. Over 40 years ago, i...
Mots-clés : Colloquium / Séminaire général du département de physique , fluide , mécanique des solides