Preparation of (TiTe 2) 3(Sb 2Te 3) y(TiTe 2) 3(Bi 2Te 3) z superlattices using the Modulated Elemental Reactants (MER) technique

C. Mortensen, B. Matelich, R. Rostek, B. Schmid, D. C. Johnson

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Difficulty in preparing (Bi 2Te 3) x(Sb 2Te 3) y superlattices due to interdiffusion of Sb and Bi led to the study of interduffusion barriers. TiTe 2 has been explored as an interdiffusion barrier to minimize the interdiffusion of Sb and Bi, as TiTe 2 is not soluble in either Bi 2Te 3 or Sb 2Te 3. Preparation of (TiTe 2) 3(Sb 2Te 3) y(TiTe 2) 3(Bi 2Te 3) z superlattices has been achieved with varying x, y and z. The formation of the superlattices was studied as a function of annealing temperature and time. TOF-SIMS depth profiles were used to study the extent of interdiffusion in the samples. Unit cell control was achieved allowing for the preparation of an array of superlattices with varying periods with very good reproducibility.

Original languageEnglish (US)
Title of host publicationMaterials Research Society Symposium Proceedings
Pages115-120
Number of pages6
StatePublished - May 8 2006
Event2005 Materials Research Society Fall Meeting - Boston, MA, United States
Duration: Nov 28 2005Dec 2 2005

Publication series

NameMaterials Research Society Symposium Proceedings
Volume886
ISSN (Print)0272-9172

Other

Other2005 Materials Research Society Fall Meeting
CountryUnited States
CityBoston, MA
Period11/28/0512/2/05

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