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X-Ray Diffraction Study of Heteroepitaxy of MOCVD Grown TiO2 and VO2 Films on Sapphire Single Crystals

Conference · · MRS Proceedings
DOI:https://doi.org/10.1557/proc-221-181· OSTI ID:5554626
 [1];  [1];  [1];  [1]
  1. Argonne National Laboratory (ANL), Argonne, IL (United States)

A four-circle diffractometry technique is used to determine the heteroepitaxial relations of VO2 and TiO2 thin films grown by an MOCVD technique on sapphire ($0001$) and ($$11\overline{2}0$$) surfaces. The use of a reflective geometry eliminates special sample preparation of the sample for the x-ray diffraction measurements. The distribution of epitaxial domains is found to depend strongly on the symmetry of the underlying substrate.

Research Organization:
Argonne National Laboratory (ANL), Argonne, IL (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES). Materials Sciences & Engineering Division (MSE)
DOE Contract Number:
W-31109-ENG-38
OSTI ID:
5554626
Report Number(s):
ANL/CP--73159; CONF-910406--18; ON: DE91013764
Journal Information:
MRS Proceedings, Journal Name: MRS Proceedings Vol. 221; ISSN 1946-4274
Publisher:
Springer Nature
Country of Publication:
United States
Language:
English

References (2)

Four-circle angle calculations for surface diffraction journal February 1988
Substrate-induced strain and orientational ordering in adsorbed monolayers journal May 1979