Bulletin of the American Physical Society
APS March Meeting 2010
Volume 55, Number 2
Monday–Friday, March 15–19, 2010; Portland, Oregon
Session A3: New Developments in Strontium Ruthenates
8:00 AM–11:00 AM,
Monday, March 15, 2010
Room: Oregon Ballroom 203
Sponsoring Unit: DCMP
Chair: Victor Yakovenko, University of Maryland
Abstract ID: BAPS.2010.MAR.A3.4
Abstract: A3.00004 : Spontaneous Supercurrents in a Chiral p-Wave Superconductor*
9:48 AM–10:24 AM
Preview Abstract Abstract
In a chiral p-wave superconductor, spontaneous equilibrium supercurrents are expected to flow at the sample edges and at domain walls, separating the two chiralities. MuSR experiments on Sr2RuO4 have been interpreted as evidence for such supercurrents in the bulk and these, as well as many other experiments, are taken as evidence for chiral p-wave superconductivity in Sr2RuO4. However, scanning SQUID and scanning Hall bar measurements failed to see evidence for such currents and put stringent limits on the size of these currents. These currents are not topologically protected, although they are connected to the protected zero energy modes and to the macroscopic angular momentum of the chiral p-wave state. I will discuss Ginzburg-Landau and Boglioubov-de Gennes calculations which explore the conditions under which these currents can be substantially suppressed, while maintaining chiral p-wave order.
*Supported by NSERC and CIFAR.
To cite this abstract, use the following reference: http://meetings.aps.org/link/BAPS.2010.MAR.A3.4
The American Physical Society (APS) is a non-profit membership organization working to advance the knowledge of physics.
1 Physics Ellipse, College Park, MD 20740-3844
Editorial Office 1 Research Road, Ridge, NY 11961-2701 (631) 591-4000
Office of Public Affairs 529 14th St NW, Suite 1050, Washington, D.C. 20045-2001 (202) 662-8700