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Observation of Andreev Surface Bound States in the 3-K phase Region of Sr_2RuO_4 | Z. Q. Mao
; K. D. Nelson
; R. Jin
; Y. Liu
; Y. Maeno
; | Date: |
26 Dec 2000 | Subject: | Superconductivity; Strongly Correlated Electrons | cond-mat.supr-con cond-mat.str-el | Abstract: | The tunneling spectrum of the superconducting phase with T_c ~ 3.0 K has been measured in the Ru-embedded region of Sr_2RuO_4 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 T_c of Sr_2RuO_4 (~1.5 K), a bell-shaped ZBCP was found. This supports that there is a phase transition in the 3-K phase region near the bulk T_c. | Source: | arXiv, cond-mat/0101410 | Services: | Forum | Review | PDF | Favorites |
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