Experimental evidence of quantum tunneling of 2D vortices up to 10 K in bulk Tl2Ba2Ca2Cu3O10 superconductor

X. X. Zhang; A. García; J. Tejada; Y. Xin; K. W. Wong

doi:10.1016/0921-4534(94)90299-2

Experimental evidence of quantum tunneling of 2D vortices up to 10 K in bulk Tl₂Ba₂Ca₂Cu₃O₁₀ superconductor

X. X. Zhang^*, A. García, J. Tejada, Y. Xin, K. W. Wong

^*Corresponding author for this work

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

8 Scopus citations

Abstract

Low-temperature magnetic relaxation measurements have been performed in a sintered Tl₂Ba₂Ca₂Cu₃O₁₀ bulk high-T_c superconductor, with an applied magnetic field of 50 Oe. A temperature-independent normalized magnetic relaxation rate below 10 K is observed. The transition from the thermally activated vortex motion regime to the quantum tunneling regime is found to be very sharp, indicating the absence of dissipation in this magnetic field. The observed behaviour is explained in terms of single 2D vortex motion in the Cu-O layers.

Original language	English (US)
Pages (from-to)	99-103
Number of pages	5
Journal	Physica C: Superconductivity and its applications
Volume	232
Issue number	1-2
DOIs	https://doi.org/10.1016/0921-4534(94)90299-2
State	Published - Oct 15 1994
Externally published	Yes

ASJC Scopus subject areas

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

Access to Document

10.1016/0921-4534(94)90299-2

Cite this

@article{c724bcbcb4e74bb58841783639579937,

title = "Experimental evidence of quantum tunneling of 2D vortices up to 10 K in bulk Tl2Ba2Ca2Cu3O10 superconductor",

abstract = "Low-temperature magnetic relaxation measurements have been performed in a sintered Tl2Ba2Ca2Cu3O10 bulk high-Tc superconductor, with an applied magnetic field of 50 Oe. A temperature-independent normalized magnetic relaxation rate below 10 K is observed. The transition from the thermally activated vortex motion regime to the quantum tunneling regime is found to be very sharp, indicating the absence of dissipation in this magnetic field. The observed behaviour is explained in terms of single 2D vortex motion in the Cu-O layers.",

author = "Zhang, {X. X.} and A. Garc{\'i}a and J. Tejada and Y. Xin and Wong, {K. W.}",

year = "1994",

month = oct,

day = "15",

doi = "10.1016/0921-4534(94)90299-2",

language = "English (US)",

volume = "232",

pages = "99--103",

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

issn = "0921-4534",

publisher = "Elsevier B.V.",

number = "1-2",

}

TY - JOUR

T1 - Experimental evidence of quantum tunneling of 2D vortices up to 10 K in bulk Tl2Ba2Ca2Cu3O10 superconductor

AU - Zhang, X. X.

AU - García, A.

AU - Tejada, J.

AU - Xin, Y.

AU - Wong, K. W.

PY - 1994/10/15

Y1 - 1994/10/15

N2 - Low-temperature magnetic relaxation measurements have been performed in a sintered Tl2Ba2Ca2Cu3O10 bulk high-Tc superconductor, with an applied magnetic field of 50 Oe. A temperature-independent normalized magnetic relaxation rate below 10 K is observed. The transition from the thermally activated vortex motion regime to the quantum tunneling regime is found to be very sharp, indicating the absence of dissipation in this magnetic field. The observed behaviour is explained in terms of single 2D vortex motion in the Cu-O layers.

AB - Low-temperature magnetic relaxation measurements have been performed in a sintered Tl2Ba2Ca2Cu3O10 bulk high-Tc superconductor, with an applied magnetic field of 50 Oe. A temperature-independent normalized magnetic relaxation rate below 10 K is observed. The transition from the thermally activated vortex motion regime to the quantum tunneling regime is found to be very sharp, indicating the absence of dissipation in this magnetic field. The observed behaviour is explained in terms of single 2D vortex motion in the Cu-O layers.

UR - http://www.scopus.com/inward/record.url?scp=0028529672&partnerID=8YFLogxK

U2 - 10.1016/0921-4534(94)90299-2

DO - 10.1016/0921-4534(94)90299-2

M3 - Article

AN - SCOPUS:0028529672

SN - 0921-4534

VL - 232

SP - 99

EP - 103

JO - Physica C: Superconductivity and its applications

JF - Physica C: Superconductivity and its applications

IS - 1-2

ER -

Experimental evidence of quantum tunneling of 2D vortices up to 10 K in bulk Tl₂Ba₂Ca₂Cu₃O₁₀ superconductor

Abstract

ASJC Scopus subject areas

Access to Document

Other files and links

Fingerprint

Cite this