Spin and orbital effects of Cooper pairs coupled to a single magnetic impurity

Details Spin and orbital effects of Cooper pairs coupled to a single magnetic impurity Spin and orbital effects of Cooper pairs coupled to a single magnetic impurity

2001-09-27

arxiv.org/abs/cond-mat/0109513v2

Physics

Condensed Matter

Strongly Correlated Electrons

7 pages, 6 figures, RevTex, to be published in Phys. Rev. B

Scientific paper

10.1103/PhysRevB.65.094434

The Kondo effect strongly depends on spin and orbital degrees of freedom of unconventional superconductivity. We focus on the Kondo effect in the $p_x + i p_y$-wave and $d_{x^2 - y^2} + i d_{xy}$-wave superconductors to compare the magnetic properties of the spin-triplet and spin-singlet Cooper pairs. The difference appears when both of the paired electrons couple to a local spin directly. For the $p_x + i p_y$-wave, the ground state is always a spin doublet for a $S_{\rm imp} = 1/2$ local spin, and it is always a spin singlet for $S_{\rm imp} = 1$. The latter is due to uniaxial spin anisotropy of the triplet Cooper pair. For the $d_{x^2 - y^2} + i d_{xy}$-wave, the interchange of ground states occurs, which resembles a competition between the Kondo effect and the superconducting energy gap in s-wave superconductors. Thus the internal degrees of freedom of Cooper pairs give a variety to the Kondo effect.

Affiliated with

Also associated with

No associations

Rating

Spin and orbital effects of Cooper pairs coupled to a single magnetic impurity 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 Spin and orbital effects of Cooper pairs coupled to a single magnetic impurity, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Spin and orbital effects of Cooper pairs coupled to a single magnetic impurity will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-513932