| Autor: |
Zou, Bo, MacDonald, Allan H. |
| Rok vydání: |
2024 |
| Předmět: |
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| Druh dokumentu: |
Working Paper |
| Popis: |
We show that the ground state of a weakly charged two-dimensional electron-hole fluid in a strong magnetic field is a broken translational symmetry state with interpenetrating lattices of localized vortices and antivortices in the electron-hole-pair field. The vortices and antivortices carry fractional charges of equal sign but unequal magnitude and have a honeycomb lattice structure that contrasts with the triangular lattices of superconducting electron-electron-pair vortex lattices. We predict that increasing charge density and weakening magnetic fields drive vortex delocalization transitions signaled experimentally by abrupt increases in counterflow transport resistance. |
| Databáze: |
arXiv |
| Externí odkaz: |
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