Analytical Formulation of the Local Density of States around a Vortex Core in Unconventional Superconductors

Yuki Nagai, Yosuke Ueno, Yusuke Kato, Nobuhiko Hayashi
2006 Journal of the Physical Society of Japan  
On the basis of the quasiclassical theory of superconductivity, we obtain a formula for the local density of states (LDOS) around a vortex core of superconductors with anisotropic pair-potential and Fermi surface in arbitrary directions of magnetic fields. Earlier results on the LDOS of d-wave superconductors and NbSe_2 are naturally interpreted within our theory geometrically; the region with high intensity of the LDOS observed in numerical calculations turns out to the enveloping curve of the
more » ... trajectory of Andreev bound states. We discuss experimental results on YNi_2B_2C within the quasiclassical theory of superconductivity.
doi:10.1143/jpsj.75.104701 fatcat:3zbutk2crfampl4m626vmyaocm