Pairing Symmetry and Flux Quantization in a Tricrystal Superconducting Ring of<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi mathvariant="normal">Y</mml:mi><mml:mrow><mml:msub><mml:mrow><mml:mi mathvariant="normal">Ba</mml:mi></mml:mrow><mml:mrow><mml:mn>2</mml:mn></mml:mrow></mml:msub></mml:mrow><mml:mrow><mml:msub><mml:mrow><mml:mi mathvariant="normal">Cu</mml:mi></mml:mrow><mml:mrow><mml:mn>3</mml:mn></mml:mrow></mml:msub></mml:mrow><mml:mrow><mml:msub><mml:mrow><mml:m

Tsuei, C. C.; Kirtley, J. R.; C., C.; Yu-Jahnes, Lock See; Gupta, A.; Shaw, T. M.; Sun, Jian; Ketchen, M. B.

doi:10.1103/physrevlett.73.593

Cited by 1,011 publications

(520 citation statements)

References 12 publications

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“…1,7,8,9 Tricrystal ( It was claimed that an odd number of π-junctions was observed only for tricrystal (a). 1,10 In the case of Bi2212, only results for tricrystal (a) were shown.…”

Section: Discussionmentioning

confidence: 99%

“…Assuming only a d x 2 −y 2 -wave OP, 7 On the other hand, the ARPES FS, while only slightly different from FS2, leads to very different conclusions with regard to the agreement with the tricrystal experiments. For specular GB tunneling, the ARPES FS is in complete agreement with the observations of the three tricrystal experiments.…”

Section: Discussionmentioning

confidence: 99%

“…15 CuO 4+δ (NCCO), and tetracrystal films of YBCO and La 2−x Ce x CuO 4−y (LCCO) suggested that these materials had a dominant d x 2 −y 2 -wave OP. 1,7,8,9,10,11,12 Very different results were obtained for c-axis junctions. Low temperature T c-axis Josephson junctions between Pb and YBCO, Bi2212, and NCCO suggested varying amounts of an s-wave OP component.…”

Section: Introductionmentioning

confidence: 98%

“…1. GL treatments of the Josephson current I for a d x 2 −y 2 -wave OP yielded for ideal (non-reconstructed) and faceted GB's, 7,22 …”

Section: Introductionmentioning

confidence: 99%

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Josephson (001) tilt grain boundary junctions of high-temperature superconductors

Arnold

Klemm

2006

Philosophical Magazine

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We calculate the Josephson critical current Ic across in-plane (001) tilt grain boundary junctions of high temperature superconductors. We solve for the electronic states corresponding to the electrondoped cuprates, two slightly different hole-doped cuprates, and an extremely underdoped holedoped cuprate in each half-space, and weakly connect the two half-spaces by either specular or random Josephson tunneling. We treat symmetric, straight, and fully asymmetric junctions with s-, extended-s, or d x 2 −y 2 -wave order parameters. For symmetric junctions with random grain boundary tunneling, our results are generally in agreement with the Sigrist-Rice form for ideal junctions that has been used to interpret "phase-sensitive" experiments consisting of such in-plane grain boundary junctions. For specular grain boundary tunneling across symmetric junctions, our results depend upon the Fermi surface topology, but are usually rather consistent with the random facet model of Tsuei et al. [Phys. Rev. Lett. 73, 593 (1994)]. Our results for asymmetric junctions of electrondoped cuprates are in agreement with the Sigrist-Rice form. However, our results for asymmetric junctions of hole-doped cuprates show that the details of the Fermi surface topology and of the tunneling processes are both very important, so that the "phase-sensitive" experiments based upon in-plane Josephson junctions are less definitive than has generally been thought.

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“…1,7,8,9 Tricrystal ( It was claimed that an odd number of π-junctions was observed only for tricrystal (a). 1,10 In the case of Bi2212, only results for tricrystal (a) were shown.…”

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 98%

“…1. GL treatments of the Josephson current I for a d x 2 −y 2 -wave OP yielded for ideal (non-reconstructed) and faceted GB's, 7,22 …”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Josephson (001) tilt grain boundary junctions of high-temperature superconductors

Arnold

Klemm

2006

Philosophical Magazine

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“…1 I acknowledge support by EPSRC grant EP/C518365/1 ing gap consistent with d-wave symmetry [3], any theory implicating phonons as the mechanism must be able to explain the unconventional order.…”

Section: Introductionmentioning

confidence: 99%

Kinks and d-waves from phonons: The intermediate coupling story

Hague¹

2008

Journal of Physics and Chemistry of Solids

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I present results from an approach that extends the Eliashberg theory by systematic expansion in the vertex function; an essential extension at large phonon frequencies, even for weak coupling. In order to deal with computationally expensive double sums over momenta, a dynamical cluster approximation (DCA) approach is used to incorporate momentum dependence into the Eliashberg equations. First, I consider the effects of introducing partial momentum dependence on the standard Eliashberg theory using a quasi-local approximation; which I use to demonstrate that it is essential to include corrections beyond the standard theory when investigating d-wave states. Using the extended theory with vertex corrections, I compute electron and phonon spectral functions. A kink in the electronic dispersion is found in the normal state along the major symmetry directions, similar to that found in photo-emission from cuprates. The phonon spectral function shows that for weak coupling W λ < ω0, the dispersion for phonons has weak momentum dependence, with consequences for the theory of optical phonon mediated d-wave superconductivity, which is shown to be 2nd order in λ. In particular, examination of the order parameter vs. filling shows that vertex corrections lead to d-wave superconductivity mediated via simple optical phonons. I map out the order parameters in detail, showing that there is significant induced anisotropy in the superconducting pairing in quasi-2D systems.

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Superconductivity, High‐Temperature

Chu

2003

Digital Encyclopedia of Applied Physics

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Pairing Symmetry and Flux Quantization in a Tricrystal Superconducting Ring ofYBa2Cu3

Cited by 1,011 publications

References 12 publications

Josephson (001) tilt grain boundary junctions of high-temperature superconductors

Josephson (001) tilt grain boundary junctions of high-temperature superconductors

Kinks and d-waves from phonons: The intermediate coupling story

Superconductivity, High‐Temperature

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