DOI: 10.1126/science.1133239. Dynamical Superconducting Order Parameter Domains in Sr <sub>2</sub> RuO <sub>4</sub>

Dynamical Superconducting Order Parameter Domains in Sr 2 RuO 4

10.1126/science.1133239

Crossref journal-article

American Association for the Advancement of Science (AAAS)

Science (221)

Abstract

We present direct evidence for complex p-wave order parameter symmetry and the presence of dynamical chiral order parameter domains of the form p x ± ip y in the ruthenate superconductor Sr 2 RuO 4 . The domain structure creates differences in the magnetic field modulation of the critical current of Josephson junctions fabricated on orthogonal faces of Sr 2 RuO 4 single crystals. Transitions between the chiral states of a domain or the motion of domain walls separating them generates telegraph noise in the critical current as a function of magnetic field or time and is responsible for hysteresis observed in field sweeps of the critical current. The presence of such domains confirms the p-wave triplet spin and complex (broken time-reversal symmetry) nature of the superconducting pairing state in Sr 2 RuO 4 .

Bibliography

Kidwingira, F., Strand, J. D., Van Harlingen, D. J., & Maeno, Y. (2006). Dynamical Superconducting Order Parameter Domains in Sr 2 RuO 4. Science, 314(5803), 1267â1271.

Authors 4

Francoise Kidwingira (first)
J. D. Strand (additional)
D. J. Van Harlingen (additional)
Yoshiteru Maeno (additional)

References 29 Referenced 180

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A. C. Mota, E. Dumont, A. Amann, Y. Maeno, Physica B (Amsterdam)259, 934 (1999). / Physica B (Amsterdam) (1999)
P. G. Björnsson, Y. Maeno, M. E. Huber, K. A. Moler, Phys. Rev. B72, 012504 (2005). / Phys. Rev. B (2005)
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G. E. Volovik, L. P. Gor'kov, JETP Lett.39, 674 (1984). / JETP Lett. (1984)
G. E. Volovik, L. P. Gor'kov, Sov. Phys. JETP61, 843 (1985). / Sov. Phys. JETP (1985)
10.1103/PhysRevLett.97.167002
We thank Z. Mao and H. Yaguchi for preparation of the crystals used in this experiment and D. Agterberg M. Sigrist and Y. Liu for useful discussions. Supported by the NSF grant DMR-01-07253; Department of Energy Office of Basic Energy Sciences grant DEFG02-91-ER45439 through the Frederick Seitz Materials Research Laboratory at the University of Illinois at Urbana-Champaign; the Japan Society for the Promotion of Science; and the Japan Ministry of Education Culture Sports Science and Technology.

Dates

Type	When
Created	18 years, 10 months ago (Oct. 26, 2006, 9:11 p.m.)
Deposited	1 year, 7 months ago (Jan. 10, 2024, 4:20 a.m.)
Indexed	1 week, 5 days ago (Aug. 19, 2025, 6:10 a.m.)
Issued	18 years, 9 months ago (Nov. 24, 2006)
Published	18 years, 9 months ago (Nov. 24, 2006)
Published Print	18 years, 9 months ago (Nov. 24, 2006)

Funders 0

None

BibTeX

@article{Kidwingira_2006, title={Dynamical Superconducting Order Parameter Domains in Sr 2 RuO 4}, volume={314}, ISSN={1095-9203}, url={http://dx.doi.org/10.1126/science.1133239}, DOI={10.1126/science.1133239}, number={5803}, journal={Science}, publisher={American Association for the Advancement of Science (AAAS)}, author={Kidwingira, Francoise and Strand, J. D. and Van Harlingen, D. J. and Maeno, Yoshiteru}, year={2006}, month=nov, pages={1267–1271} }

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