Exploiting B-site disorder for phase control in the manganites
نویسندگان
چکیده
منابع مشابه
Exploiting B Site Disorder for Phase Control in the Manganites
Disorder on the active d element site is usually very disruptive for conduction and long range order in perovskite transition metal oxides. However, in the background of phase competition such ‘B site’ dopants also act to promote one ordered phase at the expense of another. This occurs either through valence change of the transition metal or via creation of ‘defects’ in the parent magnetic stat...
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We study the possibility of nanoscale phase separation in manganites in the framework of the double exchange model. The homogeneous canted state of this model is proved to be unstable toward the formation of small ferromagnetic droplets inside an antiferromagnetic insulating matrix. For the ferromagnetic polaronic state we analyze the quantum effects related to the tails of electronic wave func...
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Sanjeev Kumar1,2 and Arno P. Kampf3 1Faculty of Science and Technology, University of Twente, P.O. Box 217, 7500 AE Enschede, The Netherlands 2Instituut-Lorentz for Theoretical Physics, Leiden University, P.O. Box 9506, 2300 RA Leiden, The Netherlands 3Theoretical Physics III, Center for Electronic Correlations and Magnetism, Institute of Physics, University of Augsburg, D-86135 Augsburg, Germa...
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ژورنال
عنوان ژورنال: EPL (Europhysics Letters)
سال: 2008
ISSN: 0295-5075,1286-4854
DOI: 10.1209/0295-5075/84/37007