Abstract
Concept of the topological order is useful to characterize anisotropic superconductivities. The spin Hall conductance distinguishes superconductivities with the same symmetry. The Chern number for the spin Hall conductance is given by the covering degree of a closed surface around the Dirac monopole. It gives a clear illustration for the on-critical condition for the dx2-y2 superconductivitiy with non-zero chemical potential. Non-trivial topological orders on the triangular lattice are also presented and demonstrated by the topological objects.
Original language | English (US) |
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Pages (from-to) | 78-79 |
Number of pages | 2 |
Journal | Physica C: Superconductivity and its applications |
Volume | 388-389 |
DOIs | |
State | Published - May 2003 |
Externally published | Yes |
Event | proceedings of the 23rd international conference on low temper - Hiroshima, Japan Duration: Aug 20 2002 → Aug 27 2002 |
All Science Journal Classification (ASJC) codes
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics
- Energy Engineering and Power Technology
- Electrical and Electronic Engineering
Keywords
- Dirac monopole
- Spin Hall conductance
- The Chern number
- Topological invariant