Quantum relaxation of vortices in a sintered Tl-2223 high-Tc superconductor

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

doi:10.1016/0921-4534(94)91005-7

Quantum relaxation of vortices in a sintered Tl-2223 high-T_c superconductor

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

^*Corresponding author for this work

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

9 Scopus citations

Abstract

The time relaxation of the zero-field cooled magnetization of a sintered Tl₂Ba₂Ca₂Cu₃O₁₀ (Tl-2223) high-T_c superconductor (HTSC) (T_co ≅ 110 K) has been measured as a function of temperature at low (50 Oe) and moderate applied magnetic fields (3 and 6 kOe). It is found that the two-dimensional vortices relax thermally and quantum mechanically at high and low temperatures, respectively, for all applied magnetic fields. It is also found that the crossover temperature between the thermal and the quantum regime changes from 2.2 K to 10 K, as the applied field decreases.

Original language	English (US)
Pages (from-to)	2957-2958
Number of pages	2
Journal	Physica C: Superconductivity and its applications
Volume	235-240
Issue number	PART 5
DOIs	https://doi.org/10.1016/0921-4534(94)91005-7
State	Published - Dec 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

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title = "Quantum relaxation of vortices in a sintered Tl-2223 high-Tc superconductor",

abstract = "The time relaxation of the zero-field cooled magnetization of a sintered Tl2Ba2Ca2Cu3O10 (Tl-2223) high-Tc superconductor (HTSC) (Tco ≅ 110 K) has been measured as a function of temperature at low (50 Oe) and moderate applied magnetic fields (3 and 6 kOe). It is found that the two-dimensional vortices relax thermally and quantum mechanically at high and low temperatures, respectively, for all applied magnetic fields. It is also found that the crossover temperature between the thermal and the quantum regime changes from 2.2 K to 10 K, as the applied field decreases.",

author = "Zhang, {X. X.} and A. Garcia and J. Tejada and Y. Xin and Wong, {K. W.}",

year = "1994",

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doi = "10.1016/0921-4534(94)91005-7",

language = "English (US)",

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

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T1 - Quantum relaxation of vortices in a sintered Tl-2223 high-Tc superconductor

AU - Zhang, X. X.

AU - Garcia, A.

AU - Tejada, J.

AU - Xin, Y.

AU - Wong, K. W.

PY - 1994/12

Y1 - 1994/12

N2 - The time relaxation of the zero-field cooled magnetization of a sintered Tl2Ba2Ca2Cu3O10 (Tl-2223) high-Tc superconductor (HTSC) (Tco ≅ 110 K) has been measured as a function of temperature at low (50 Oe) and moderate applied magnetic fields (3 and 6 kOe). It is found that the two-dimensional vortices relax thermally and quantum mechanically at high and low temperatures, respectively, for all applied magnetic fields. It is also found that the crossover temperature between the thermal and the quantum regime changes from 2.2 K to 10 K, as the applied field decreases.

AB - The time relaxation of the zero-field cooled magnetization of a sintered Tl2Ba2Ca2Cu3O10 (Tl-2223) high-Tc superconductor (HTSC) (Tco ≅ 110 K) has been measured as a function of temperature at low (50 Oe) and moderate applied magnetic fields (3 and 6 kOe). It is found that the two-dimensional vortices relax thermally and quantum mechanically at high and low temperatures, respectively, for all applied magnetic fields. It is also found that the crossover temperature between the thermal and the quantum regime changes from 2.2 K to 10 K, as the applied field decreases.

UR - http://www.scopus.com/inward/record.url?scp=0000711505&partnerID=8YFLogxK

U2 - 10.1016/0921-4534(94)91005-7

DO - 10.1016/0921-4534(94)91005-7

M3 - Article

AN - SCOPUS:0000711505

SN - 0921-4534

VL - 235-240

SP - 2957

EP - 2958

JO - Physica C: Superconductivity and its applications

JF - Physica C: Superconductivity and its applications

IS - PART 5

ER -

Quantum relaxation of vortices in a sintered Tl-2223 high-T_c superconductor

Abstract

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