Anisotropy of non-equilibrium quasi-particle dynamics in single-crystal YBa2Cu3O7-δ
We report measurements of non-equilibrium quasi-particle dynamics in detwinned single-crystals of YBCO using femtosecond time-resolved reflectance. Distinct contributions arising from the a- and b-axis response are separately identified for the first time using polarised light. The a-axis component...
| Autori principali: | , , , , |
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| Natura: | Journal article |
| Lingua: | English |
| Pubblicazione: |
Elsevier
2000
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| Riassunto: | We report measurements of non-equilibrium quasi-particle dynamics in detwinned single-crystals of YBCO using femtosecond time-resolved reflectance. Distinct contributions arising from the a- and b-axis response are separately identified for the first time using polarised light. The a-axis component is sensitive to carrier correlation in the superconducting state, and appears to be a common feature of many high-Tc superconductors; the b-axis component exhibits distinctive pseudogap behaviour. |
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