Quasiparticle Excitations outside the Vortex Cores in MgB$_2$ Probed by Muon Spin Rotation

Details Quasiparticle Excitations outside the Vortex Cores in MgB$_2$ Probed by Muon Spin Rotation Quasiparticle Excitations outside the Vortex Cores in MgB$_2$ Probed by Muon Spin Rotation

2002-12-02

arxiv.org/abs/cond-mat/0212022v1

Physics

Condensed Matter

Superconductivity

4 pages, 3 figures included. to be published in J. Phys. Soc. Jpn

Scientific paper

10.1143/JPSJ.72.29

The magnetic penetration depth $\lambda$ in the mixed state of MgB$_2$ has been determined microscopically from the field distribution around magnetic vortices probed by muon spin rotation. Both the temperature and magnetic field dependence of $\lambda$ strongly suggest the presence of delocalized quasiparticles around the vortex cores. In particular, the effect of Doppler shift has been clearly observed as a finite gradient of the field dependence of $\lambda$, strongly suggesting an anisotropic order parameter with the region of a vanishingly small energy gap.

Affiliated with

Also associated with

No associations

Rating

Quasiparticle Excitations outside the Vortex Cores in MgB$_2$ Probed by Muon Spin Rotation does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Quasiparticle Excitations outside the Vortex Cores in MgB$_2$ Probed by Muon Spin Rotation, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Quasiparticle Excitations outside the Vortex Cores in MgB$_2$ Probed by Muon Spin Rotation will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-602400