Journal
MATERIALS LETTERS
Volume 63, Issue 6-7, Pages 589-591Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.matlet.2008.11.040
Keywords
Microstructure; Characterization methods; Ferroelectrics; Magnetic material
Funding
- State Key Development Program for Basic Research of China [2009CB623305]
- National High Technology Research and Development Program for Advanced Materials of China [2007AA03Z330, 2006AA03Z430]
- Foundation for Innovative Research Groups of the National Natural Science Foundation of China [50821004]
- National Science Foundation of China [10774113]
- Nanotechnology Project of Shanghai Science and Technology Committee [0852nmO6900]
- Innovation Project of the Shanghai Institute of Ceramics [SCX-0612]
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The ferroelectric/magnetic domain structure in a magnetoelectric binding BaTiO(3)/Fe(81)Ga(19) and the ferroelectric/ crystallographic domain structure in a magnetoelectric binding PMN-34PT/Mn(50)Ni(28)Ga(22) were observed successfully by scanning electron acoustic microscopy (SEAM). Both the stripe ferroelectric domains in single crystals and the stripe magnetic domain's in polycrystalline grains are obtained simultaneously, which exhibits that the scanning electron acoustic microscopy is a unique imaging technique. In addition, the experimental results show that the SEAM technique may be used in multiferroics to character two or more ferroic domains simultaneously. The imaging mechanisms of ferroelectric domains, magnetic domains, and crystallographic domains are attributed to piezoelectric coupling mechanism, magneto-elastic coupling mechanism, and thermo-wave coupling mechanism, respectively. (C) 2008 Elsevier B.V. All rights reserved.
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