Microwave and sub-millimeter wave measurements of Y1-xCaxBa2Cu3O7-delta flims: Evidence of time-reversal symmetry breaking

E. Farber; N. Bachar

doi:10.1016/j.physc.2007.03.273

Microwave and sub-millimeter wave measurements of Y1-xCaxBa2Cu3O7-delta flims: Evidence of time-reversal symmetry breaking

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Abstract

In the present report we show the evolution of the order parameter with doping for Y_1-xCa_xBa₂Cu₃O _7-δ thin films. The penetration depth results for overdoped Y_0.9Ca_0.1Ba₂Cu₃O_{7- δ} films are well fitted to a complex order parameter of the form Δ d_{x2 - y2} + i δ d_xy, while the underdoped films yield a pure d_{x2 - y2}-wave. The complex order parameter indicates broken time-reversal symmetry.

Original language	English
Pages (from-to)	912-913
Number of pages	2
Journal	Physica C: Superconductivity and its Applications
Volume	460-462 II
Issue number	SPEC. ISS.
DOIs	https://doi.org/10.1016/j.physc.2007.03.273
State	Published - 1 Sep 2007

Keywords

Order parameter
Overdoped superconductors
Penetration depth

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10.1016/j.physc.2007.03.273

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title = "Microwave and sub-millimeter wave measurements of Y1-xCaxBa2Cu3O7-delta flims: Evidence of time-reversal symmetry breaking",

abstract = "In the present report we show the evolution of the order parameter with doping for Y1-xCaxBa2Cu3O 7-δ thin films. The penetration depth results for overdoped Y0.9Ca0.1Ba2Cu3O7- δ films are well fitted to a complex order parameter of the form Δ dx2 - y2 + i δ dxy, while the underdoped films yield a pure dx2 - y2-wave. The complex order parameter indicates broken time-reversal symmetry.",

keywords = "Order parameter, Overdoped superconductors, Penetration depth",

author = "E. Farber and N. Bachar",

note = "Funding Information: This research was supported in part by the Israeli Ministry of National Infrastructures, and by the Israeli Ministry of Defense. ",

year = "2007",

month = sep,

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doi = "10.1016/j.physc.2007.03.273",

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T1 - Microwave and sub-millimeter wave measurements of Y1-xCaxBa2Cu3O7-delta flims

T2 - Evidence of time-reversal symmetry breaking

AU - Farber, E.

AU - Bachar, N.

N1 - Funding Information: This research was supported in part by the Israeli Ministry of National Infrastructures, and by the Israeli Ministry of Defense.

PY - 2007/9/1

Y1 - 2007/9/1

N2 - In the present report we show the evolution of the order parameter with doping for Y1-xCaxBa2Cu3O 7-δ thin films. The penetration depth results for overdoped Y0.9Ca0.1Ba2Cu3O7- δ films are well fitted to a complex order parameter of the form Δ dx2 - y2 + i δ dxy, while the underdoped films yield a pure dx2 - y2-wave. The complex order parameter indicates broken time-reversal symmetry.

AB - In the present report we show the evolution of the order parameter with doping for Y1-xCaxBa2Cu3O 7-δ thin films. The penetration depth results for overdoped Y0.9Ca0.1Ba2Cu3O7- δ films are well fitted to a complex order parameter of the form Δ dx2 - y2 + i δ dxy, while the underdoped films yield a pure dx2 - y2-wave. The complex order parameter indicates broken time-reversal symmetry.

KW - Order parameter

KW - Overdoped superconductors

KW - Penetration depth

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SN - 0921-4534

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JO - Physica C: Superconductivity and its Applications

JF - Physica C: Superconductivity and its Applications

IS - SPEC. ISS.

ER -

Microwave and sub-millimeter wave measurements of Y1-xCaxBa2Cu3O7-delta flims: Evidence of time-reversal symmetry breaking

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Keywords

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