Microwave-induced zero-current crossings in Bi2Sr2CaCu2O8+y intrinsic Josephson junctions

Takasada Shibauchi; Jun Hashimoto; Ken Ichi Fujita; Takao Watanabe; Azusa Matsuda; Minoru Suzuki

doi:10.1016/S0921-4534(02)02578-9

Microwave-induced zero-current crossings in Bi₂Sr₂CaCu₂O_8+y intrinsic Josephson junctions

Takasada Shibauchi^*, Jun Hashimoto, Ken Ichi Fujita, Takao Watanabe, Azusa Matsuda, Minoru Suzuki

^*Corresponding author for this work

Research output: Contribution to journal › Conference article › peer-review

1 Citation (Scopus)

Abstract

Current-voltage characteristics in mesa-structured Bi₂Sr₂CaCu₂O_8+y intrinsic junctions under in-plane magnetic fields reveal zero-current crossings (ZCCs) when microwave is applied. From measurements with controlled number of junctions (N = 5-14), we find that the number of ZCCs is just N in total of positive and negative bias sides; half of the 2N branches observed without microwave. Unlike Shapiro steps, the voltage step increases with microwave amplitude. Such features can be explained by considering the charging effect of superconducting layers and the pinning of triangular Josephson vortex lattice.

Original language	English
Pages (from-to)	461-462
Number of pages	2
Journal	Physica C: Superconductivity and its applications
Volume	388-389
DOIs	https://doi.org/10.1016/S0921-4534(02)02578-9
Publication status	Published - 2003 May
Externally published	Yes
Event	proceedings of the 23rd international conference on low temper - Hiroshima, Japan Duration: 2002 Aug 20 → 2002 Aug 27

Keywords

Current-voltage characteristics
Intrinsic tunneling
Josephson vortex
Shapiro step

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Energy Engineering and Power Technology
Electrical and Electronic Engineering

Access to Document

10.1016/S0921-4534(02)02578-9

Cite this

@article{796ac3d00f5d4226a319e560a13081f8,

title = "Microwave-induced zero-current crossings in Bi2Sr2CaCu2O8+y intrinsic Josephson junctions",

abstract = "Current-voltage characteristics in mesa-structured Bi2Sr2CaCu2O8+y intrinsic junctions under in-plane magnetic fields reveal zero-current crossings (ZCCs) when microwave is applied. From measurements with controlled number of junctions (N = 5-14), we find that the number of ZCCs is just N in total of positive and negative bias sides; half of the 2N branches observed without microwave. Unlike Shapiro steps, the voltage step increases with microwave amplitude. Such features can be explained by considering the charging effect of superconducting layers and the pinning of triangular Josephson vortex lattice.",

keywords = "Current-voltage characteristics, Intrinsic tunneling, Josephson vortex, Shapiro step",

author = "Takasada Shibauchi and Jun Hashimoto and Fujita, {Ken Ichi} and Takao Watanabe and Azusa Matsuda and Minoru Suzuki",

note = "Funding Information: This work was partly supported by the Mitsubishi foundation and by a Grant-in-Aid for Scientific Research from MEXT.; proceedings of the 23rd international conference on low temper ; Conference date: 20-08-2002 Through 27-08-2002",

year = "2003",

month = may,

doi = "10.1016/S0921-4534(02)02578-9",

language = "English",

volume = "388-389",

pages = "461--462",

journal = "Physica C: Superconductivity and its Applications",

issn = "0921-4534",

publisher = "Elsevier",

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TY - JOUR

T1 - Microwave-induced zero-current crossings in Bi2Sr2CaCu2O8+y intrinsic Josephson junctions

AU - Shibauchi, Takasada

AU - Hashimoto, Jun

AU - Fujita, Ken Ichi

AU - Watanabe, Takao

AU - Matsuda, Azusa

AU - Suzuki, Minoru

N1 - Funding Information: This work was partly supported by the Mitsubishi foundation and by a Grant-in-Aid for Scientific Research from MEXT.

PY - 2003/5

Y1 - 2003/5

N2 - Current-voltage characteristics in mesa-structured Bi2Sr2CaCu2O8+y intrinsic junctions under in-plane magnetic fields reveal zero-current crossings (ZCCs) when microwave is applied. From measurements with controlled number of junctions (N = 5-14), we find that the number of ZCCs is just N in total of positive and negative bias sides; half of the 2N branches observed without microwave. Unlike Shapiro steps, the voltage step increases with microwave amplitude. Such features can be explained by considering the charging effect of superconducting layers and the pinning of triangular Josephson vortex lattice.

AB - Current-voltage characteristics in mesa-structured Bi2Sr2CaCu2O8+y intrinsic junctions under in-plane magnetic fields reveal zero-current crossings (ZCCs) when microwave is applied. From measurements with controlled number of junctions (N = 5-14), we find that the number of ZCCs is just N in total of positive and negative bias sides; half of the 2N branches observed without microwave. Unlike Shapiro steps, the voltage step increases with microwave amplitude. Such features can be explained by considering the charging effect of superconducting layers and the pinning of triangular Josephson vortex lattice.

KW - Current-voltage characteristics

KW - Intrinsic tunneling

KW - Josephson vortex

KW - Shapiro step

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U2 - 10.1016/S0921-4534(02)02578-9

DO - 10.1016/S0921-4534(02)02578-9

M3 - Conference article

AN - SCOPUS:0038526421

SN - 0921-4534

VL - 388-389

SP - 461

EP - 462

JO - Physica C: Superconductivity and its Applications

JF - Physica C: Superconductivity and its Applications

T2 - proceedings of the 23rd international conference on low temper

Y2 - 20 August 2002 through 27 August 2002

ER -