Observation of an hexatic vortex glass in flux lattices of the high-Tc superconductor Bi2.1Sr1.9Ca0.9Cu2O8+δ

D. J. Bishop; P. L. Gammel; C. A. Murray; D. B. Mitzi; A. Kapitulnik

doi:10.1016/0921-4526(91)90210-6

Observation of an hexatic vortex glass in flux lattices of the high-T_c superconductor Bi_2.1Sr_1.9Ca_0.9Cu₂O_8+δ

D. J. Bishop, P. L. Gammel, C. A. Murray, D. B. Mitzi, A. Kapitulnik

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

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Abstract

We report observation of hexatic order in Abrikosov flux lattices in very clean crystals of the high-T_c superconductor Bi_2.1Sr_1.9Ca_0.9Cu₂O_8+δ (BSCCO). Our experiments consist of in situ magnetic decoration of the flux lattice at 4.2 K. Analysis of the decoration images shows that the positional order decays exponentially with a correlation length of a few lattice constants while the orientational order persists for hundreds of lattice constants and decays algebraically with an exponent η₆ = 0.6 ± 0.01. Our results confirm recent theoretical speculation that the positional order should be far more sensitive to disorder than the orientational order and that the low-temperature ordered phase of the flux lines in these systems might be an hexatic glass.

Original language	English (US)
Pages (from-to)	72-79
Number of pages	8
Journal	Physica B: Physics of Condensed Matter
Volume	169
Issue number	1-4
DOIs	https://doi.org/10.1016/0921-4526(91)90210-6
State	Published - Feb 2 1991
Externally published	Yes

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Electrical and Electronic Engineering

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title = "Observation of an hexatic vortex glass in flux lattices of the high-Tc superconductor Bi2.1Sr1.9Ca0.9Cu2O8+δ",

abstract = "We report observation of hexatic order in Abrikosov flux lattices in very clean crystals of the high-Tc superconductor Bi2.1Sr1.9Ca0.9Cu2O8+δ (BSCCO). Our experiments consist of in situ magnetic decoration of the flux lattice at 4.2 K. Analysis of the decoration images shows that the positional order decays exponentially with a correlation length of a few lattice constants while the orientational order persists for hundreds of lattice constants and decays algebraically with an exponent η6 = 0.6 ± 0.01. Our results confirm recent theoretical speculation that the positional order should be far more sensitive to disorder than the orientational order and that the low-temperature ordered phase of the flux lines in these systems might be an hexatic glass.",

author = "Bishop, {D. J.} and Gammel, {P. L.} and Murray, {C. A.} and Mitzi, {D. B.} and A. Kapitulnik",

note = "Funding Information: The authors would like to thank G.J. Dolan, D. Fisher, M.P.A. Fisher, D. Huse, P. Little-wood and D. Nelson for many stimulating discussions. Two of the authors would like to acknowledge support received from AT&T (D.B.M) and the NSF (A.K). This work was supported in part by the Joint Services Electronic Program under grant No. N00014-84-K-0327 and by the Stanford Center for Materials Research through the NSF Department of Materials Research.",

year = "1991",

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doi = "10.1016/0921-4526(91)90210-6",

language = "English (US)",

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T1 - Observation of an hexatic vortex glass in flux lattices of the high-Tc superconductor Bi2.1Sr1.9Ca0.9Cu2O8+δ

AU - Bishop, D. J.

AU - Gammel, P. L.

AU - Murray, C. A.

AU - Mitzi, D. B.

AU - Kapitulnik, A.

N1 - Funding Information: The authors would like to thank G.J. Dolan, D. Fisher, M.P.A. Fisher, D. Huse, P. Little-wood and D. Nelson for many stimulating discussions. Two of the authors would like to acknowledge support received from AT&T (D.B.M) and the NSF (A.K). This work was supported in part by the Joint Services Electronic Program under grant No. N00014-84-K-0327 and by the Stanford Center for Materials Research through the NSF Department of Materials Research.

PY - 1991/2/2

Y1 - 1991/2/2

N2 - We report observation of hexatic order in Abrikosov flux lattices in very clean crystals of the high-Tc superconductor Bi2.1Sr1.9Ca0.9Cu2O8+δ (BSCCO). Our experiments consist of in situ magnetic decoration of the flux lattice at 4.2 K. Analysis of the decoration images shows that the positional order decays exponentially with a correlation length of a few lattice constants while the orientational order persists for hundreds of lattice constants and decays algebraically with an exponent η6 = 0.6 ± 0.01. Our results confirm recent theoretical speculation that the positional order should be far more sensitive to disorder than the orientational order and that the low-temperature ordered phase of the flux lines in these systems might be an hexatic glass.

AB - We report observation of hexatic order in Abrikosov flux lattices in very clean crystals of the high-Tc superconductor Bi2.1Sr1.9Ca0.9Cu2O8+δ (BSCCO). Our experiments consist of in situ magnetic decoration of the flux lattice at 4.2 K. Analysis of the decoration images shows that the positional order decays exponentially with a correlation length of a few lattice constants while the orientational order persists for hundreds of lattice constants and decays algebraically with an exponent η6 = 0.6 ± 0.01. Our results confirm recent theoretical speculation that the positional order should be far more sensitive to disorder than the orientational order and that the low-temperature ordered phase of the flux lines in these systems might be an hexatic glass.

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Observation of an hexatic vortex glass in flux lattices of the high-T_c superconductor Bi_2.1Sr_1.9Ca_0.9Cu₂O_8+δ

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