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Article: Supercurrent and quasiparticle interference between two d-wave superconductors coupled by a normal metal or insulator
Title | Supercurrent and quasiparticle interference between two d-wave superconductors coupled by a normal metal or insulator |
---|---|
Authors | |
Keywords | Physics |
Issue Date | 1996 |
Publisher | American Physical Society. The Journal's web site is located at http://prb.aps.org/ |
Citation | Physical Review B (Condensed Matter), 1996, v. 54 n. 17, p. 12509-12516 How to Cite? |
Abstract | In the presence of an elastic barrier at both interfaces of a mesoscopic d-wave superconductor-normalmetal-d-wave superconductor (DND junction), the Josephson current at zero temperature is studied by using a simple matrix method. As a limiting case, the tunneling between two d-wave superconductors coupled by a insulator barrier (DID structure) is particularly addressed. The effects of sign change and anisotropic gap structure of the d x2-y2 superconductor are carefully considered in the Andreev reflection. The coupling of forward-moving quasiparticles and backward-moving quasiparticles with different pair potentials leads to contrasting Andreev spectra in different motion angle regions, which is specific to our model. Unlike conventional superconducting point-contact junctions, the conduction crossing the Fermi surface plays an important role in determining the critical current. Our theoritical results suggest that the dependence of the critical current on the grain boundary tilt angle provides a clue to identify the pairing symmetry of high-T c. superconductors. |
Persistent Identifier | http://hdl.handle.net/10722/43177 |
ISSN | |
ISI Accession Number ID | |
References |
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Tang, HX | en_HK |
dc.contributor.author | Wang, ZD | en_HK |
dc.contributor.author | Zhu, JX | en_HK |
dc.date.accessioned | 2007-03-23T04:40:45Z | - |
dc.date.available | 2007-03-23T04:40:45Z | - |
dc.date.issued | 1996 | en_HK |
dc.identifier.citation | Physical Review B (Condensed Matter), 1996, v. 54 n. 17, p. 12509-12516 | - |
dc.identifier.issn | 0163-1829 | en_HK |
dc.identifier.uri | http://hdl.handle.net/10722/43177 | - |
dc.description.abstract | In the presence of an elastic barrier at both interfaces of a mesoscopic d-wave superconductor-normalmetal-d-wave superconductor (DND junction), the Josephson current at zero temperature is studied by using a simple matrix method. As a limiting case, the tunneling between two d-wave superconductors coupled by a insulator barrier (DID structure) is particularly addressed. The effects of sign change and anisotropic gap structure of the d x2-y2 superconductor are carefully considered in the Andreev reflection. The coupling of forward-moving quasiparticles and backward-moving quasiparticles with different pair potentials leads to contrasting Andreev spectra in different motion angle regions, which is specific to our model. Unlike conventional superconducting point-contact junctions, the conduction crossing the Fermi surface plays an important role in determining the critical current. Our theoritical results suggest that the dependence of the critical current on the grain boundary tilt angle provides a clue to identify the pairing symmetry of high-T c. superconductors. | en_HK |
dc.format.extent | 172407 bytes | - |
dc.format.extent | 45056 bytes | - |
dc.format.mimetype | application/pdf | - |
dc.format.mimetype | application/msword | - |
dc.language | eng | en_HK |
dc.publisher | American Physical Society. The Journal's web site is located at http://prb.aps.org/ | en_HK |
dc.relation.ispartof | Physical Review B (Condensed Matter) | - |
dc.rights | Copyright 1996 by The American Physical Society. This article is available online at https://doi.org/10.1103/PhysRevB.54.12509 | - |
dc.subject | Physics | en_HK |
dc.title | Supercurrent and quasiparticle interference between two d-wave superconductors coupled by a normal metal or insulator | en_HK |
dc.type | Article | en_HK |
dc.identifier.openurl | http://library.hku.hk:4550/resserv?sid=HKU:IR&issn=0163-1829&volume=54&issue=17&spage=12509&epage=12516&date=1996&atitle=Supercurrent+and+quasiparticle+interference+between+two+d-wave+superconductors+coupled+by+a+normal+metal+or+insulator | en_HK |
dc.identifier.email | Wang, ZD: zwang@hkucc.hku.hk | en_HK |
dc.identifier.authority | Wang, ZD=rp00802 | en_HK |
dc.description.nature | published_or_final_version | en_HK |
dc.identifier.doi | 10.1103/PhysRevB.54.12509 | en_HK |
dc.identifier.scopus | eid_2-s2.0-0007342140 | en_HK |
dc.identifier.hkuros | 21078 | - |
dc.relation.references | http://www.scopus.com/mlt/select.url?eid=2-s2.0-0007342140&selection=ref&src=s&origin=recordpage | en_HK |
dc.identifier.volume | 54 | en_HK |
dc.identifier.issue | 17 | en_HK |
dc.identifier.spage | 12509 | en_HK |
dc.identifier.epage | 12516 | en_HK |
dc.identifier.isi | WOS:A1996VT68100104 | - |
dc.publisher.place | United States | en_HK |
dc.identifier.scopusauthorid | Tang, HX=7403125308 | en_HK |
dc.identifier.scopusauthorid | Wang, ZD=14828459100 | en_HK |
dc.identifier.scopusauthorid | Zhu, JX=7405688302 | en_HK |
dc.identifier.issnl | 0163-1829 | - |