Cu-deficiency induced structural transition of Cu2−xTe. Issue 14 (14th April 2015)

• Record Type: Journal Article
• Authors: Yu, Lei; Luo, Kun; Chen, Shiyou; Duan, Chun-Gang
• Is Part Of: CrystEngComm. Volume 17:Issue 14(2015)
• Page Start: 2878
• Page End: 2885
• Publication Date: 2015-04-14
• Subjects: Crystals -- Periodicals; Crystal growth -- Periodicals; Crystallography -- Periodicals; Cristaux -- Périodiques; Cristaux -- Croissance -- Périodiques; Cristallographie -- Périodiques; 548
• DOI: 10.1039/c4ce02370f
• Languages: English
• ISSNs: 1466-8033

Abstract

<abstract abstract-type="toc"> <title> <x xml:space="preserve">Abstract</x> </title> <p> <graphic position="anchor" id="ga" xlink:href="ark:/27927/pgjjkph0hb" xlink:type="simple" xmlns:xlink="http://www.w3.org/1999/xlink" />All the reported structures of Cu₂Te are found to be metastable with respect to the phase separation Cu₂Te → Cu_{2−<italic>x</italic>}Te + <italic>x</italic>Cu, which causes a structural transition of Cu_{2−<italic>x</italic>}Te from the monoclinic structure (stable when <italic>x</italic> = 0) to the trigonal structure (0.125 ≤ <italic>x</italic> ≤ 0.625). The experimental XRD peaks of Cu_{2−<italic>x</italic>}Te samples should be attributed to the trigonal structure.</p> </abstract>