Search for complex order parameters in grain boundary junctions

W. K. Neils; D. J. Van Harlingen

doi:10.1016/S0921-4526(99)02211-5

Search for complex order parameters in grain boundary junctions

W. K. Neils, D. J. Van Harlingen

Physics

Research output: Contribution to journal › Article › peer-review

Abstract

We are measuring the critical current of grain boundary Josephson junctions fabricated from pure and magnetically doped cuprate films to search for the onset of subdominant superconducting phases. Complex order parameters d_x2-y2 + is or d_x2-y2 + id_xy are predicted to arise near interfaces and magnetic impurities due to a suppression of the d-wave state by Andreev reflection from the strongly anisotropic order parameter. Simulations indicate that this should significantly alter the variation of the critical current with temperature and magnetic field.

Original language	English (US)
Pages (from-to)	587-588
Number of pages	2
Journal	Physica B: Condensed Matter
Volume	284-288
Issue number	PART I
DOIs	https://doi.org/10.1016/S0921-4526(99)02211-5
State	Published - 2000

Keywords

Grain boundaries
Josephson junctions
Order parameter
YBaCuO patterned

ASJC Scopus subject areas

General Materials Science
Condensed Matter Physics

Online availability

10.1016/S0921-4526(99)02211-5

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title = "Search for complex order parameters in grain boundary junctions",

abstract = "We are measuring the critical current of grain boundary Josephson junctions fabricated from pure and magnetically doped cuprate films to search for the onset of subdominant superconducting phases. Complex order parameters dx2-y2 + is or dx2-y2 + idxy are predicted to arise near interfaces and magnetic impurities due to a suppression of the d-wave state by Andreev reflection from the strongly anisotropic order parameter. Simulations indicate that this should significantly alter the variation of the critical current with temperature and magnetic field.",

keywords = "Grain boundaries, Josephson junctions, Order parameter, YBaCuO patterned",

author = "Neils, {W. K.} and {Van Harlingen}, {D. J.}",

note = "Funding Information: Work was supported by the Department of Energy through the Frederick Seitz Materials Research Laboratory, grant DEFG02-96-ER45439.",

year = "2000",

doi = "10.1016/S0921-4526(99)02211-5",

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volume = "284-288",

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T1 - Search for complex order parameters in grain boundary junctions

AU - Neils, W. K.

AU - Van Harlingen, D. J.

N1 - Funding Information: Work was supported by the Department of Energy through the Frederick Seitz Materials Research Laboratory, grant DEFG02-96-ER45439.

PY - 2000

Y1 - 2000

N2 - We are measuring the critical current of grain boundary Josephson junctions fabricated from pure and magnetically doped cuprate films to search for the onset of subdominant superconducting phases. Complex order parameters dx2-y2 + is or dx2-y2 + idxy are predicted to arise near interfaces and magnetic impurities due to a suppression of the d-wave state by Andreev reflection from the strongly anisotropic order parameter. Simulations indicate that this should significantly alter the variation of the critical current with temperature and magnetic field.

AB - We are measuring the critical current of grain boundary Josephson junctions fabricated from pure and magnetically doped cuprate films to search for the onset of subdominant superconducting phases. Complex order parameters dx2-y2 + is or dx2-y2 + idxy are predicted to arise near interfaces and magnetic impurities due to a suppression of the d-wave state by Andreev reflection from the strongly anisotropic order parameter. Simulations indicate that this should significantly alter the variation of the critical current with temperature and magnetic field.

KW - Grain boundaries

KW - Josephson junctions

KW - Order parameter

KW - YBaCuO patterned

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DO - 10.1016/S0921-4526(99)02211-5

M3 - Article

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SN - 0921-4526

VL - 284-288

SP - 587

EP - 588

JO - Physica B: Condensed Matter

JF - Physica B: Condensed Matter

IS - PART I

ER -

Search for complex order parameters in grain boundary junctions

Abstract

Keywords

ASJC Scopus subject areas

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