Transverse modulation and uniform period in Bi1-xSrxMnO3

M. Nagao; K. Kimoto; Y. Matsui

doi:10.1016/j.physb.2009.12.067

Transverse modulation and uniform period in Bi_1-xSr_xMnO₃

M. Nagao, K. Kimoto, Y. Matsui

Research output: Contribution to journal › Article

1 Citation (Scopus)

Abstract

The crystal structures of the superstructure phases of the Bi-based manganite Bi_1-xSr_xMnO₃ have been studied by transmission electron microscopy. On the basis of the selected area electron diffraction patterns, our crystallographic analysis revealed that the modulations of Bi_1-xSr_xMnO₃ consist of only transverse modulation associated with the Pcnn-type symmetry, in contrast to the previously believed Ibmm-type symmetry. Moreover, our high-resolution transmission electron microscopy image indicated that a modulation with a noninteger-multiple period has a uniform period but not the mixed state of adjacent integer-multiple periods according to the lever rule.

Original language	English
Pages (from-to)	1686-1689
Number of pages	4
Journal	Physica B: Condensed Matter
Volume	405
Issue number	7
DOIs	https://doi.org/10.1016/j.physb.2009.12.067
Publication status	Published - 2010 Apr 1
Externally published	Yes

Keywords

Crystal structure
Manganites
Transmission electron microscopy

ASJC Scopus subject areas

Condensed Matter Physics
Electronic, Optical and Magnetic Materials
Electrical and Electronic Engineering

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Nagao, M., Kimoto, K., & Matsui, Y. (2010). Transverse modulation and uniform period in Bi_1-xSr_xMnO₃ Physica B: Condensed Matter, 405(7), 1686-1689. https://doi.org/10.1016/j.physb.2009.12.067

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AB - The crystal structures of the superstructure phases of the Bi-based manganite Bi1-xSrxMnO3 have been studied by transmission electron microscopy. On the basis of the selected area electron diffraction patterns, our crystallographic analysis revealed that the modulations of Bi1-xSrxMnO3 consist of only transverse modulation associated with the Pcnn-type symmetry, in contrast to the previously believed Ibmm-type symmetry. Moreover, our high-resolution transmission electron microscopy image indicated that a modulation with a noninteger-multiple period has a uniform period but not the mixed state of adjacent integer-multiple periods according to the lever rule.

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