Evidence for linelike vortex liquid phase in Tl2Ba2CaCu2O8 probed by the Josephson plasma resonance

V. K. Thorsmølle; R. D. Averitt; M. P. Maley; M. F. Hundley; A. E. Koshelev; L. N. Bulaevskii; A. J. Taylor

doi:10.1103/PhysRevB.66.012519

Evidence for linelike vortex liquid phase in Tl₂Ba₂CaCu₂O₈ probed by the Josephson plasma resonance

V. K. Thorsmølle
, R. D. Averitt
, M. P. Maley
, M. F. Hundley
, A. E. Koshelev
, L. N. Bulaevskii
, A. J. Taylor

Los Alamos National Laboratory

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

20 Scopus citations

Abstract

We measured the Josephson plasma resonance (JPR) in optimally doped Tl₂Ba₂CaCu₂O_8+δ thin films using terahertz time-domain spectroscopy in transmission. The temperature and magnetic field dependence of the JPR frequency shows that the c-axis correlations of pancake vortices remain intact at the transition from the vortex solid to the liquid phase. In this respect Tl₂Ba₂CaCu₂O_{8 + δ} films, with anisotropy parameter γ≈ 150, are similar to the less anisotropic YBa₂Cu₃O_7-δ (γ≈ 8) rather than to the most anisotropic Bi₂Sr₂CaCu₂O_8+δ single crystals (γ≥ 500).

Original language	English
Article number	012519
Pages (from-to)	125191-125194
Number of pages	4
Journal	Physical Review B - Condensed Matter and Materials Physics
Volume	66
Issue number	1
DOIs	https://doi.org/10.1103/PhysRevB.66.012519
State	Published - Jul 1 2002

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10.1103/PhysRevB.66.012519

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title = "Evidence for linelike vortex liquid phase in Tl2Ba2CaCu2O8 probed by the Josephson plasma resonance",

abstract = "We measured the Josephson plasma resonance (JPR) in optimally doped Tl2Ba2CaCu2O8+δ thin films using terahertz time-domain spectroscopy in transmission. The temperature and magnetic field dependence of the JPR frequency shows that the c-axis correlations of pancake vortices remain intact at the transition from the vortex solid to the liquid phase. In this respect Tl2Ba2CaCu2O8 + δ films, with anisotropy parameter γ≈ 150, are similar to the less anisotropic YBa2Cu3O7-δ (γ≈ 8) rather than to the most anisotropic Bi2Sr2CaCu2O8+δ single crystals (γ≥ 500).",

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year = "2002",

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doi = "10.1103/PhysRevB.66.012519",

language = "English",

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T1 - Evidence for linelike vortex liquid phase in Tl2Ba2CaCu2O8 probed by the Josephson plasma resonance

AU - Thorsmølle, V. K.

AU - Averitt, R. D.

AU - Maley, M. P.

AU - Hundley, M. F.

AU - Koshelev, A. E.

AU - Bulaevskii, L. N.

AU - Taylor, A. J.

PY - 2002/7/1

Y1 - 2002/7/1

N2 - We measured the Josephson plasma resonance (JPR) in optimally doped Tl2Ba2CaCu2O8+δ thin films using terahertz time-domain spectroscopy in transmission. The temperature and magnetic field dependence of the JPR frequency shows that the c-axis correlations of pancake vortices remain intact at the transition from the vortex solid to the liquid phase. In this respect Tl2Ba2CaCu2O8 + δ films, with anisotropy parameter γ≈ 150, are similar to the less anisotropic YBa2Cu3O7-δ (γ≈ 8) rather than to the most anisotropic Bi2Sr2CaCu2O8+δ single crystals (γ≥ 500).

AB - We measured the Josephson plasma resonance (JPR) in optimally doped Tl2Ba2CaCu2O8+δ thin films using terahertz time-domain spectroscopy in transmission. The temperature and magnetic field dependence of the JPR frequency shows that the c-axis correlations of pancake vortices remain intact at the transition from the vortex solid to the liquid phase. In this respect Tl2Ba2CaCu2O8 + δ films, with anisotropy parameter γ≈ 150, are similar to the less anisotropic YBa2Cu3O7-δ (γ≈ 8) rather than to the most anisotropic Bi2Sr2CaCu2O8+δ single crystals (γ≥ 500).

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U2 - 10.1103/PhysRevB.66.012519

DO - 10.1103/PhysRevB.66.012519

M3 - Article

SN - 1098-0121

VL - 66

SP - 125191

EP - 125194

JO - Physical Review B - Condensed Matter and Materials Physics

JF - Physical Review B - Condensed Matter and Materials Physics

IS - 1

M1 - 012519

ER -

Evidence for linelike vortex liquid phase in Tl2Ba2CaCu2O8 probed by the Josephson plasma resonance

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Evidence for linelike vortex liquid phase in Tl₂Ba₂CaCu₂O₈ probed by the Josephson plasma resonance