The temperature dependence of the 4-eV optical transition in YBa2Cu3O6

Marcel E. Bijlsma; Herbert Wormeester; Dave H.A. Blank; Edward Span; Arend van Silfhout; Horst Rogalla

doi:10.1103/PhysRevB.57.13418

The temperature dependence of the 4-eV optical transition in YBa₂Cu₃O₆

Marcel E. Bijlsma, Herbert Wormeester, Dave H.A. Blank, Edward Span, Arend van Silfhout, Horst Rogalla

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Abstract

With spectroscopic ellipsometry the optical properties of high quality YBa₂Cu₃O₆ thin films deposited by off-axis magnetron sputtering were investigated in situ. The optical transition at 4 eV of these films that were not exposed to atmospheric condition shows a two times higher magnitude than reported previously and can be described by a single Lorentz oscillator in the complete temperature range of 20 °C–700 °C. The width of the Lorentz oscillator is remarkably small. Combined with the temperature-independent strength of one electron per unit cell of the 4-eV transition, it is an indication that this optical transition takes place between a quite isolated occupied and unoccupied level of the electronic structure.

Original language	English
Pages (from-to)	13418-13421
Number of pages	4
Journal	Physical review B: Condensed matter and materials physics
Volume	1998
Issue number	57
DOIs	https://doi.org/10.1103/PhysRevB.57.13418
Publication status	Published - 1998

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10.1103/PhysRevB.57.13418

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title = "The temperature dependence of the 4-eV optical transition in YBa2Cu3O6",

abstract = "With spectroscopic ellipsometry the optical properties of high quality YBa2Cu3O6 thin films deposited by off-axis magnetron sputtering were investigated in situ. The optical transition at 4 eV of these films that were not exposed to atmospheric condition shows a two times higher magnitude than reported previously and can be described by a single Lorentz oscillator in the complete temperature range of 20 °C–700 °C. The width of the Lorentz oscillator is remarkably small. Combined with the temperature-independent strength of one electron per unit cell of the 4-eV transition, it is an indication that this optical transition takes place between a quite isolated occupied and unoccupied level of the electronic structure.",

author = "Bijlsma, {Marcel E.} and Herbert Wormeester and Blank, {Dave H.A.} and Edward Span and {van Silfhout}, Arend and Horst Rogalla",

year = "1998",

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T1 - The temperature dependence of the 4-eV optical transition in YBa2Cu3O6

AU - Bijlsma, Marcel E.

AU - Wormeester, Herbert

AU - Blank, Dave H.A.

AU - Span, Edward

AU - van Silfhout, Arend

AU - Rogalla, Horst

PY - 1998

Y1 - 1998

N2 - With spectroscopic ellipsometry the optical properties of high quality YBa2Cu3O6 thin films deposited by off-axis magnetron sputtering were investigated in situ. The optical transition at 4 eV of these films that were not exposed to atmospheric condition shows a two times higher magnitude than reported previously and can be described by a single Lorentz oscillator in the complete temperature range of 20 °C–700 °C. The width of the Lorentz oscillator is remarkably small. Combined with the temperature-independent strength of one electron per unit cell of the 4-eV transition, it is an indication that this optical transition takes place between a quite isolated occupied and unoccupied level of the electronic structure.

AB - With spectroscopic ellipsometry the optical properties of high quality YBa2Cu3O6 thin films deposited by off-axis magnetron sputtering were investigated in situ. The optical transition at 4 eV of these films that were not exposed to atmospheric condition shows a two times higher magnitude than reported previously and can be described by a single Lorentz oscillator in the complete temperature range of 20 °C–700 °C. The width of the Lorentz oscillator is remarkably small. Combined with the temperature-independent strength of one electron per unit cell of the 4-eV transition, it is an indication that this optical transition takes place between a quite isolated occupied and unoccupied level of the electronic structure.

U2 - 10.1103/PhysRevB.57.13418

DO - 10.1103/PhysRevB.57.13418

M3 - Article

SN - 1098-0121

VL - 1998

SP - 13418

EP - 13421

JO - Physical review B: Condensed matter and materials physics

JF - Physical review B: Condensed matter and materials physics

IS - 57

ER -

The temperature dependence of the 4-eV optical transition in YBa2Cu3O6

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The temperature dependence of the 4-eV optical transition in YBa₂Cu₃O₆