✦ LIBER ✦

Structure and Physical Properties of BaCu2Te2

✍ Scribed by Ying C. Wang; Francis J. DiSalvo

Publisher: Elsevier Science
Year: 2001
Tongue: English
Weight: 312 KB
Volume: 156
Category: Article
ISSN: 0022-4596
DOI: 10.1006/jssc.2000.8956

No coin nor oath required. For personal study only.

✦ Synopsis

BaCu 2 Te 2 was synthesized at 6903C and its structure was determined via the Rietveld re5nement method using powder X-ray di4raction with R p /wR p (%) ‫؍‬ 4.01/5.36. BaCu 2 Te 2 crystallizes in the orthorhombic space group Pnma (No. 62) with Z ‫؍‬ 4 and a ‫؍‬ 10.1244(5) A > , b ‫؍‬ 4.4577(3) A > , c ‫؍‬ 11.4642(6) A > , V ‫؍‬ 517.85(5) A > 3 . It adopts the same structure type as -BaCu 2 S 2 /BaCu 2 Se 2 /BaZn 2 Sb 2 . In BaCu 2 Te 2 , distorted CuTe 4 tetrahedra connect with one another by edge-sharing and cornersharing to build up a three-dimensional framework. There is no structural resemblance between BaCu 2 Te 2 and Cu 2 Te (P6/ mmm), but remarkably, the BaCu 2 Te 2 framework is topologically identical to the net found in the mineral feldspar. Electrical property measurements on a sintered pellet indicate that it is a p-type degenerate semiconductor. An anomaly was observed in the variation of electrical resistivity as a function of temperature near 65 K.

📜 SIMILAR VOLUMES

ChemInform Abstract: Structure and Physi

ChemInform Abstract: Structure and Physical Properties of the New Telluride BaAg2Te2 and Its Quaternary Variants BaCuδAg2-δTe2.

✍ Abdeljalil Assoud; Yanjie Cui; Stephanie Thomas; Brodie Sutherland; Holger Klein 📂 Article 📅 2008 🏛 John Wiley and Sons ⚖ 19 KB 👁 1 views

## Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable v

ChemInform Abstract: Transport and Optic

ChemInform Abstract: Transport and Optical Properties of Heavily Hole-Doped Semiconductors BaCu2Se2 and BaCu2Te2.

✍ Michael A. McGuire; Andrew F. May; David J. Singh; Mao-Hua Du; Gerald E. Jelliso 📂 Article 📅 2011 🏛 John Wiley and Sons ⚖ 19 KB 👁 2 views

Crystal Structure and Magnetic Propertie

Crystal Structure and Magnetic Properties of BaCu2(PO4)2 Phosphate

✍ A. Moqine; A. Boukhari; J. Darriet 📂 Article 📅 1993 🏛 Elsevier Science 🌐 English ⚖ 207 KB

The crystal structure of \(\mathrm{BaCu}_{2}\left(\mathrm{PO}_{4}\right)_{2}\) has been determined from X-Ray single crystal data. The crystal symmetry is triclinic, space group \(P \overline{1}\), with unit celt constants \(a=9.226(1) \AA, b=9.271(1) \AA, c=\) 10.516(1) \(\AA, \alpha=106.76(5)^{\ci

Thermoelectric Properties of β-BaCu2S2.

✍ Ken Kurosaki; Hironori Uneda; Hiroaki Muta; Shinsuke Yamanaka 📂 Article 📅 2005 🏛 John Wiley and Sons ⚖ 16 KB

Electrical Properties of β-BaCu2S2.

✍ Ken Kurosaki; Hironori Uneda; Hiroaki Muta; Shinsuke Yamanaka 📂 Article 📅 2005 🏛 John Wiley and Sons ⚖ 9 KB

ChemInform Abstract: Preparation, Crysta

ChemInform Abstract: Preparation, Crystal Structure, Physical Properties and Electronic Band Structure of TlScQ2 (Q: S, Se and Te).

✍ Christoph L. Teske; Wolfgang Bensch; Sergey Mankovsky; Hubert Ebert 📂 Article 📅 2008 🏛 John Wiley and Sons ⚖ 27 KB 👁 1 views