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Observation of Andreev surface bound states in the 3-K phase region of Sr2RuO4 | | Z Q Mao
; K D Nelson
; R Jin
; Y Liu
; Y Maeno
; | | Date: |
16 Jul 2001 | | Journal: | Phys Rev Lett, 87 (3), 037003 | | Abstract: | The tunneling spectrum of the superconducting phase with Tc approximately 3.0 K has been measured in the Ru-embedded region of Sr2RuO4 using cleaved junctions. A sharp zero-bias conductance peak (ZBCP) has been observed below 3 K. All characteristics of this ZBCP suggest that it originates from Andreev surface bound states, indicating that the pairing in the 3-K phase is also non- s-wave. Below the bulk Tc of Sr2RuO4 (approximately 1.5 K), a crossover from sharp to bell-shaped ZBCP was found. This supports the theory that there is a phase transition in the 3-K phase region near the bulk Tc. | | Source: | PubMed, pmid11461583 | | Services: | Forum | Review | Favorites | |
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