Display options
Cite
Bobkova IV, Hirschfeld PJ, Barash YS. Spin-dependent quasiparticle reflection and bound States at interfaces with itinerant antiferromagnets. Phys Rev Lett. 2005;94(3):037005doi: 10.1103/PhysRevLett.94.037005.
Bobkova, I. V., Hirschfeld, P. J., & Barash, Y. S. (2005). Spin-dependent quasiparticle reflection and bound States at interfaces with itinerant antiferromagnets. Physical review letters, 94(3), 037005. https://doi.org/10.1103/PhysRevLett.94.037005
Bobkova, I V, et al. "Spin-dependent quasiparticle reflection and bound States at interfaces with itinerant antiferromagnets." Physical review letters vol. 94,3 (2005): 037005. doi: https://doi.org/10.1103/PhysRevLett.94.037005
Bobkova IV, Hirschfeld PJ, Barash YS. Spin-dependent quasiparticle reflection and bound States at interfaces with itinerant antiferromagnets. Phys Rev Lett. 2005 Jan 28;94(3):037005. doi: 10.1103/PhysRevLett.94.037005. Epub 2005 Jan 26. PMID: 15698311.
Copy Download .nbib Format: NLM
Share it on

Phys Rev Lett. 2005 Jan 28;94(3):037005. doi: 10.1103/PhysRevLett.94.037005. Epub 2005 Jan 26.

Spin-dependent quasiparticle reflection and bound States at interfaces with itinerant antiferromagnets.

Physical review letters

I V Bobkova, P J Hirschfeld, Yu S Barash

Affiliations

  1. Institute of Solid State Physics, Chernogolovka, Moscow reg., 142432 Russia.

PMID: 15698311 DOI: 10.1103/PhysRevLett.94.037005

Abstract

We find a novel channel of quasiparticle reflection from the simplest two-sublattice antiferromagnet (AF) on a bipartite lattice. Low-energy quasiparticles in a normal metal (N) experience spin-dependent retroreflection at AF/N interfaces. As a combined effect of antiferromagnetic and Andreev reflections, subgap Andreev states arise at an AF/superconductor (SC) interface. When the antiferromagnetic reflection dominates the specular one, Andreev bound states have almost zero energy on AF/s-wave superconductor (sSC) interfaces, whereas there are no low-energy subgap states on AF/d-wave superconductor (dSC) boundaries. For an sSC/AF/sSC junction, the bound states are found to split, due to the finite width of the AF interlayer, and carry the supercurrent. The theory developed in the present Letter is based on a novel quasiclassical approach, which applies to interfaces involving itinerant antiferromagnets.

Publication Types