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Journal article

Valence Electronic-Structure of Thallium-Compound High-Temperature Superconductors

We used photoemission spectroscopy with synchrotron radiation to investigate the electronic structure of eight different thallium cuprates: pure Tl2.2Ba2CuO(y), Ce-doped Tl2.2Ba(2-x)Ce(x)CuO(y) (x = 0.1, 0.15, 0.2) and Tl2Ba2CeCu3O(y), and Zr-doped Tl2Ba(2-x)Zr(x)CuO(y) (x = 0.005, 0.05). The material are high-temperature superconductors, except one of the Tl2.2Ba2CuO(y) samples. The study included an investigation of the valence-electron density of states, and a detailed analysis of the Fermi edge at room temperature. No departures from the Fermi-liquid picture were observed.

    Keywords: CA-CU-O ; SINGLE-CRYSTALS ; BOND STATE ; PHOTOEMISSION ; GAP ; SPECTROSCOPY

    Note:

    Univ wisconsin,ctr synchrotron radiat,madison,wi 53706. ecole polytech fed lausanne,inst phys appl,ecublens,switzerland. univ colorado,dept phys,golden,co. Hwu, y, univ wisconsin,dept phys,madison,wi 53706.

    ISI Document Delivery No.: EP753

    Reference

    Record created on 2006-10-03, modified on 2016-08-08

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