Weak links and DC SQUIDS on artificial nonsymmetric grain boundaries in YBa 2Cu 3O 7-delta

Z. G. Ivanov; P. A. Nilsson; D. Winkler; J. A. Alarco; T. Claeson; E. A. Stepantsov; Alexander Tzalenchuk

Weak links and DC SQUIDS on artificial nonsymmetric grain boundaries in YBa 2Cu 3O 7-delta

Z. G. Ivanov, P. A. Nilsson, D. Winkler, J. A. Alarco, T. Claeson, E. A. Stepantsov, Alexander Tzalenchuk

Department of Physics

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

Abstract

The authors have studied weak links and DC-SQUIDs made from pulsed laser deposited YBa 2Cu 3O 7-delta thin films on Y-ZrO 2 bicrystal substrates. The transport properties of the weak links were studied as a function of the misorientation angle (thetas) between the two halves of the bicrystal and an exponential dependence of the weak link critical current density was observed for angles up to 40deg at 77 K. Josephson effects with clear microwave and magnetic field responses were observed. An optimum DC-SQUID performance at 77 K was obtained for thetas=32deg. At this temperature, the authors achieved a periodic magnetic field response with a modulation depth of 12 muV

Original language	English
Pages (from-to)	3030
Journal	Applied Physics Letters
Volume	59
Issue number	23
Publication status	Published - 1991

Cite this

@article{e64df903c0b844b6a5cb78f25335d563,

title = "Weak links and DC SQUIDS on artificial nonsymmetric grain boundaries in YBa 2Cu 3O 7-delta",

abstract = "The authors have studied weak links and DC-SQUIDs made from pulsed laser deposited YBa 2Cu 3O 7-delta thin films on Y-ZrO 2 bicrystal substrates. The transport properties of the weak links were studied as a function of the misorientation angle (thetas) between the two halves of the bicrystal and an exponential dependence of the weak link critical current density was observed for angles up to 40deg at 77 K. Josephson effects with clear microwave and magnetic field responses were observed. An optimum DC-SQUID performance at 77 K was obtained for thetas=32deg. At this temperature, the authors achieved a periodic magnetic field response with a modulation depth of 12 muV",

author = "Ivanov, {Z. G.} and Nilsson, {P. A.} and D. Winkler and Alarco, {J. A.} and T. Claeson and Stepantsov, {E. A.} and Alexander Tzalenchuk",

year = "1991",

language = "English",

volume = "59",

pages = "3030",

journal = "Applied Physics Letters",

issn = "1077-3118",

publisher = "American Institute of Physics Publising LLC",

number = "23",

}

TY - JOUR

T1 - Weak links and DC SQUIDS on artificial nonsymmetric grain boundaries in YBa 2Cu 3O 7-delta

AU - Ivanov, Z. G.

AU - Nilsson, P. A.

AU - Winkler, D.

AU - Alarco, J. A.

AU - Claeson, T.

AU - Stepantsov, E. A.

AU - Tzalenchuk, Alexander

PY - 1991

Y1 - 1991

N2 - The authors have studied weak links and DC-SQUIDs made from pulsed laser deposited YBa 2Cu 3O 7-delta thin films on Y-ZrO 2 bicrystal substrates. The transport properties of the weak links were studied as a function of the misorientation angle (thetas) between the two halves of the bicrystal and an exponential dependence of the weak link critical current density was observed for angles up to 40deg at 77 K. Josephson effects with clear microwave and magnetic field responses were observed. An optimum DC-SQUID performance at 77 K was obtained for thetas=32deg. At this temperature, the authors achieved a periodic magnetic field response with a modulation depth of 12 muV

AB - The authors have studied weak links and DC-SQUIDs made from pulsed laser deposited YBa 2Cu 3O 7-delta thin films on Y-ZrO 2 bicrystal substrates. The transport properties of the weak links were studied as a function of the misorientation angle (thetas) between the two halves of the bicrystal and an exponential dependence of the weak link critical current density was observed for angles up to 40deg at 77 K. Josephson effects with clear microwave and magnetic field responses were observed. An optimum DC-SQUID performance at 77 K was obtained for thetas=32deg. At this temperature, the authors achieved a periodic magnetic field response with a modulation depth of 12 muV

M3 - Article

SN - 1077-3118

VL - 59

SP - 3030

JO - Applied Physics Letters

JF - Applied Physics Letters

IS - 23

ER -