Evidence of a s-wave subdominant order parameter in YBa₂Cu₃O₇₋δ from break-junction tunneling spectra

dc.contributor.author	Akimenko, A.I.
dc.contributor.author	Bobba, F.
dc.contributor.author	Giubileo, F.
dc.contributor.author	Gudimenko, V.A.
dc.contributor.author	Piano, S.
dc.contributor.author	Cucolo, A.M.
dc.date.accessioned	2017-05-18T05:31:48Z
dc.date.available	2017-05-18T05:31:48Z
dc.date.issued	2010
dc.identifier.citation	Evidence of a s-wave subdominant order parameter in YBa₂Cu₃O₇₋δ from break-junction tunneling spectra / A.I. Akimenko, F. Bobba, F. Giubileo, V.A. Gudimenko, S. Piano, A.M. Cucolo // Физика низких температур. — 2010. — Т. 36, № 2. — С. 212-216. — Бібліогр.: 30 назв. — англ.	uk_UA
dc.identifier.issn	0132-6414
dc.identifier.other	PACS: 74.72.–h, 74.20.Rp, 74.50.+r.
dc.identifier.uri	http://dspace.nbuv.gov.ua/handle/123456789/116897
dc.description.abstract	The tunneling spectra of YBa₂Cu₃O₇₋δ break-junctions have been investigated for the tunneling direction close to the node one. The behavior of the zero-bias conductance peak (ZBCP) and Josephson current have been studied with temperature and magnetic field. The observed deep splitting of ZBCP which starts at TS<20–30 K is in agreement with the theory for the dx²–y²± is order parameter [Y. Tanuma, Y. Tanaka, and S. Kashiwaya, Phys. Rev. B64, 214519 (2001)]. We also observed that a low (0.04 T) magnetic field significantly depresses such splitting. The 1/T temperature dependence of maximum Josephson current that goes to saturation at T<TS also confirms the mixed order parameter formation.	uk_UA
dc.language.iso	en	uk_UA
dc.publisher	Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України	uk_UA
dc.relation.ispartof	Физика низких температур
dc.subject	Свеpхпpоводимость, в том числе высокотемпеpатуpная	uk_UA
dc.title	Evidence of a s-wave subdominant order parameter in YBa₂Cu₃O₇₋δ from break-junction tunneling spectra	uk_UA
dc.type	Article	uk_UA
dc.status	published earlier	uk_UA