Thallium superconductors, electron

In the field of electronics, thalhum oxysulfide is used in the so-called Thalofide cell , which has sensitivity for low-intensity, long-wavelength light better than that of the selenium cell, and thus has important military and research applications. Thallium-activated Nal or NaCl crystals are used in the photomultiplier tubes present in some scintillation counters. Future uses of thalhum in this field can be expected because of its incorporation in thallium-based high-temperature superconductors. 

With the recent discovery of the new high temperature ceramic superconductors based on both bismuth (1,2) and thallium (3 4), there is renewed interest in the electronic states of these materials and, in particular, the charge transfer to and from the Cu-0 planes vis-a-vis the YBa2Cu20 family. With no Cu-0 chains... 

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