Journal
JOURNAL OF CRYSTAL GROWTH
Volume 344, Issue 1, Pages 65-68Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.jcrysgro.2012.01.053
Keywords
Crystal structure; X-ray diffraction; Growth from high temperature solutions; Single crystal growth; Oxides; Magnetic materials
Funding
- National Research Foundation of Korea (NRF)
- Ministry of Education, Science and Technology [2009-0071286, 2007-2000879, 2010-0014523]
- National Research Foundation of Korea [2010-0014523, 2009-0071286] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
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Single crystals of cubic and tetragonal spinel Co3-xMnxO4 (x=1.0 and 1.5) were successfully grown using a solvent evaporation method with PbF2 flux. Single crystals in octahedral shape with a size of about 4 mm on edge were obtained from 100 cm(3) Pt crucibles. Ferrimagnetic transitions were detected at 170 K and 160 K from the measurements of temperature dependent magnetization and specific heat of Co(2)Mna(4) and Co1.5Mn1.5O4, respectively. Low temperature field-dependent magnetization curves give a strong indication of the non-collinear spin structure, offering an insulating Co3-xMnxO4 system as a possible candidate for examining the multiferroicity. (C) 2012 Elsevier B.V. All rights reserved.
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