標題: | 3D DIRAC SEMI-METAL IN THE TRIPLET SUPERCONDUCTING STATE |
作者: | Rosenstein, B. Shapiro, B. Ya. Shapiro, I. 交大名義發表 National Chiao Tung University |
公開日期: | 1-一月-2015 |
摘要: | It was recently shown that conventional phonon-electron interactions may induce a triplet pairing state in time-reversal invariant 3D Dirac semi - metals. Starting from the microscopic model of the isotropic Dirac semi-metal, the Ginzburg-Landau equations for the vector order parameter is derived using the Gorkov technique. The time dependent Ginzburg - Landau model in the presence of external fields is used to investigate some optical and magnetic properties of such superconductors. The AC conductivity of a clean sample depends on the orientation of the order parameter. It is demonstrated that the difference between the penetration depths results in rotation of the polarization vector of microwave passing a slab made of this material. The upper critical magnetic field H-c2 was found. It turns out that at fields close to H-c2 the order parameter orients itself perpendicular to the field direction. In certain range of parameters the triplet superconducting phase persists at arbitrarily high magnetic field like in some p wave superconductors. |
URI: | http://hdl.handle.net/11536/155018 |
ISBN: | 978-965-7632-03-1 |
期刊: | OPTIMIZATION OF THE COMPOSITION, STRUCTURE AND PROPERTIES OF METALS, OXIDES, COMPOSITES, NANO AND AMORPHOUS MATERIALS |
起始頁: | 197 |
結束頁: | 206 |
顯示於類別: | 會議論文 |