Role of Spinon Excitations on KT Transition at Low Energies in d-Wave Superconductors
| Autor: | Jae-Gon Eom, Ki-Seok Kim, Sung-Sik Lee, Sung-Ho Suck Salk, Jae-Hyeon Eom, Young-Il Seo |
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| Rok vydání: | 2003 |
| Předmět: |
Condensed Matter::Quantum Gases
Physics Superconductivity Condensed matter physics Mott insulator Statistical and Nonlinear Physics Slave boson Condensed Matter Physics Spinon Vortex Massless particle symbols.namesake Mean field theory Dirac fermion Condensed Matter::Superconductivity Quantum electrodynamics symbols Condensed Matter::Strongly Correlated Electrons |
| Zdroj: | International Journal of Modern Physics B. 17:3319-3323 |
| ISSN: | 1793-6578 0217-9792 |
| DOI: | 10.1142/s0217979203020922 |
| Popis: | By using a low energy effective Lagrangian of the U(1) slave boson mean field theory we examine the vortex binding-unbinding transition (KT transition) from a doped Mott insulator at low temperatures in a d-wave superconductor. It is shown that the interaction potential between vortices is modified by a "Doppler energy shift" resulting in additional attractive interaction, as a consequence of supercurrent fluctuations coupled to the particle-hole excitations of the massless Dirac fermions. |
| Databáze: | OpenAIRE |
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