X-ray Diffraction Study of Cd0.8Zn0.2Te Under High Pressure and Temperature
Source: International Journal of High Pressure Research, Volume 22, Number 2, 1 January 2002 , pp. 403-406(4)
Publisher: Taylor and Francis Ltd
Abstract:Energy dispersive X-ray diffraction using synchrotron radiation has been used to study phase transformations of Cd0.8Zn0.2Te under high pressure and temperature. We confirm the presence of a cinnabar phase between the zinc-blende and rock-salt phases. But contrary to the results in CdTe, this intermediate phase is found to be stable only on pressure decrease and in a narrower pressure and temperature range. Single-phase cinnabar patterns are obtained only at 300 and 373 K. At 673 K and above, even on pressure decrease, no evidence of the cinnabar phase is found. In this temperature range, a phase segregation phenomenon is observed in the zinc-blende phase during the zinc-blende transition in both upstroke and downstroke, and the retrieved sample at ambient conditions presents a double pattern corresponding to two different Zn contents.
Document Type: Research article
Affiliations: 1: CMUV, Ed. Investigación, pl. 1, Dr. Moliner, 50, 46100-Burjassot, Valencia, Spain Tel.: (34) 96 3 86 46 17; Fax: (34) 96 3 98 31 4; E-mail: firstname.lastname@example.org 2: PMC, Université P. et M. Curie, T13, E4, B77, 4 Place Jussieu, 75252-Paris, France 3: LURE, Bat. 209D, Centre Universitaire Paris-Sud, 91405-Orsay, France
Publication date: 2002-01-01