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ab-Plane surface impedance of the single-layer cuprate Tl2Ba2CuO6+δ

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Citation

Broun, D., Morgan, D., Ormeno, R., Lee, S., Mackenzie, A. P., Tyler, A., et al. (1997). ab-Plane surface impedance of the single-layer cuprate Tl2Ba2CuO6+δ. Physica C-Superconductivity and its Applications, 282-287, 1467-1468. doi:10.1016/S0921-4534(97)00838-1.


Cite as: http://hdl.handle.net/11858/00-001M-0000-0018-EB7D-7
Abstract
The ab-plane surface impedance of Tl2Ba2CuO6+δ (Tl-2201) has been measured at 14.4, 24.8 and 35.9 GHz using cavity perturbation techniques. The result of these measurements is a picture of the superconducting electrodynamics of Tl-2201 that closely resembles those of YBa2Cu3O7−δ and Bi2Sr2CaCu2O8. Here we describe the main features of our measurements; in particular, we see a linear temperature dependence of the in-plane penetration depth at low temperature, consistent with an unconventional pairing state with line nodes. The simple crystal structure of Tl-2201 (tetragonal, with a single CuO2 plane/unit cell) makes this an interesting addition to our knowledge of cuprate electrodynamics.