Frequency and temperature dependence of complex conductance of ultrathin YBa2Cu3O7-x films: A study of vortex-antivortex pair unbinding

Vitaly A. Gasparov; I. E. Batov; Qi Li; C. Kwon

doi:10.1016/S0921-4526(99)02364-9

Frequency and temperature dependence of complex conductance of ultrathin YBa₂Cu₃O_7-x films: A study of vortex-antivortex pair unbinding

Vitaly A. Gasparov, I. E. Batov, Qi Li, C. Kwon

Physics

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

4 Scopus citations

Abstract

We have studied frequency and temperature dependences of complex sheet conductance of ultrathin (1-3 unit cell (UC) thick) YBa₂Cu₃O_7-x films using a radio frequency (1-20, 100-1000 MHz) sheet impedance and a microwave (30 GHz) loss measurements. We found the activated temperature dependence of the vortex diffusion constant and scaling behaviour of the universal ratio T_KTB^DC/L_k^-1(T_KTB) for 1UC, 2UC and 3UC YBCO films, in close agreement with theoretical prediction for vortex-antivortex unbinding transition.

Original language	English (US)
Pages (from-to)	1021-1022
Number of pages	2
Journal	Physica B: Condensed Matter
Volume	284-288
Issue number	PART I
DOIs	https://doi.org/10.1016/S0921-4526(99)02364-9
State	Published - 2000

All Science Journal Classification (ASJC) codes

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

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10.1016/S0921-4526(99)02364-9

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title = "Frequency and temperature dependence of complex conductance of ultrathin YBa2Cu3O7-x films: A study of vortex-antivortex pair unbinding",

abstract = "We have studied frequency and temperature dependences of complex sheet conductance of ultrathin (1-3 unit cell (UC) thick) YBa2Cu3O7-x films using a radio frequency (1-20, 100-1000 MHz) sheet impedance and a microwave (30 GHz) loss measurements. We found the activated temperature dependence of the vortex diffusion constant and scaling behaviour of the universal ratio TKTBDC/Lk-1(TKTB) for 1UC, 2UC and 3UC YBCO films, in close agreement with theoretical prediction for vortex-antivortex unbinding transition.",

author = "Gasparov, {Vitaly A.} and Batov, {I. E.} and Qi Li and C. Kwon",

note = "Funding Information: This work was partially supported by NSF Grant No. DMR-9876266, Russian Council on High-T c Superconductivity (Volna 4G), Civilian Research and Development Foundation (RE1-356), and National Research Council COBASE Program.",

year = "2000",

doi = "10.1016/S0921-4526(99)02364-9",

language = "English (US)",

volume = "284-288",

pages = "1021--1022",

journal = "Physica B: Condensed Matter",

issn = "0921-4526",

publisher = "Elsevier B.V.",

number = "PART I",

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TY - JOUR

T1 - Frequency and temperature dependence of complex conductance of ultrathin YBa2Cu3O7-x films

T2 - A study of vortex-antivortex pair unbinding

AU - Gasparov, Vitaly A.

AU - Batov, I. E.

AU - Li, Qi

AU - Kwon, C.

N1 - Funding Information: This work was partially supported by NSF Grant No. DMR-9876266, Russian Council on High-T c Superconductivity (Volna 4G), Civilian Research and Development Foundation (RE1-356), and National Research Council COBASE Program.

PY - 2000

Y1 - 2000

N2 - We have studied frequency and temperature dependences of complex sheet conductance of ultrathin (1-3 unit cell (UC) thick) YBa2Cu3O7-x films using a radio frequency (1-20, 100-1000 MHz) sheet impedance and a microwave (30 GHz) loss measurements. We found the activated temperature dependence of the vortex diffusion constant and scaling behaviour of the universal ratio TKTBDC/Lk-1(TKTB) for 1UC, 2UC and 3UC YBCO films, in close agreement with theoretical prediction for vortex-antivortex unbinding transition.

AB - We have studied frequency and temperature dependences of complex sheet conductance of ultrathin (1-3 unit cell (UC) thick) YBa2Cu3O7-x films using a radio frequency (1-20, 100-1000 MHz) sheet impedance and a microwave (30 GHz) loss measurements. We found the activated temperature dependence of the vortex diffusion constant and scaling behaviour of the universal ratio TKTBDC/Lk-1(TKTB) for 1UC, 2UC and 3UC YBCO films, in close agreement with theoretical prediction for vortex-antivortex unbinding transition.

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DO - 10.1016/S0921-4526(99)02364-9

M3 - Article

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SN - 0921-4526

VL - 284-288

SP - 1021

EP - 1022

JO - Physica B: Condensed Matter

JF - Physica B: Condensed Matter

IS - PART I

ER -

Frequency and temperature dependence of complex conductance of ultrathin YBa₂Cu₃O_7-x films: A study of vortex-antivortex pair unbinding

Abstract

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