Phase Transformations in Lanthanide Calcium Manganese Oxide: Charge Ordering and Phase Competition
Tao, Jing
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https://hdl.handle.net/2142/82765
Description
Title
Phase Transformations in Lanthanide Calcium Manganese Oxide: Charge Ordering and Phase Competition
Author(s)
Tao, Jing
Issue Date
2005
Doctoral Committee Chair(s)
Jian-Min (Jim) Zuo
Department of Study
Materials Science and Engineering
Discipline
Materials Science and Engineering
Degree Granting Institution
University of Illinois at Urbana-Champaign
Degree Name
Ph.D.
Degree Level
Dissertation
Keyword(s)
Physics, Condensed Matter
Language
eng
Abstract
Charge ordering (CO) phase transformations in La1-xCa xMnO3 were studied at Ca doping levels x = 0.33, 0.50, 0.67, 0.75 and 0.77. Temperature-controlled in-situ electron diffraction and high resolution dark field images were carried out to investigate the phase competitions between CO and other phases during the phase transformations. Different scenario of phase transformations were found in differently doped La1-x CaxMnO3. Correlations between the structures and physical property measurements were also studied in La1-xCa xMnO3.
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