Crystallographic features of the A-type and CE-type antiferromagnetic states in the simple-perovskite manganite system Sr 1-xNd xMnO 3

Yusuke Onezawa, Yasuhide Inoue, Masazumi Arao, Yasumasa Koyama

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    Abstract

    The electronic states of Sr 1-xNd xMnO 3 with the simple perovskite structure are characterized by a three-dimensional highly-correlated electronic system. To understand the detailed features of the A- and CE-type antiferromagnetic states in this system, their crystallographic features for x = 0.47, 0.48, and 0.50 have been investigated mainly by both x-ray powder diffraction and transmission electron microscopy. It was found at room temperature that the crystal structure for x = 0.47 was determined to have the monoclinic C2/m symmetry, while the orthorhombic Imma structure was confirmed for x = 0.48 and 0.50. The in-situ observation for x = 0.47 indicated that, in the heating process from room temperature, the C2/m-to-Imma transition occurred in the paramagnetic state, and that the A-type antiferromagnetic state appeared below about 200 K on cooling. In addition, the cooling from room temperature for x = 0.48 and 0.50 resulted in the direct transitions from the orthorhombic Imma state to the A- and CE-type antiferromagnetic states, respectively. Based on these features, we simply discussed the physical origin of the appearance of the paramagnetic state with the monoclinic symmetry for x = 0.47.

    Original languageEnglish
    Title of host publicationAdvanced Materials Research
    Pages532-537
    Number of pages6
    Volume409
    DOIs
    Publication statusPublished - 2012
    Event7th International Conference on Processing and Manufacturing of Advanced Materials, THERMEC'2011 - Quebec City, QC
    Duration: 2011 Aug 12011 Aug 5

    Publication series

    NameAdvanced Materials Research
    Volume409
    ISSN (Print)10226680

    Other

    Other7th International Conference on Processing and Manufacturing of Advanced Materials, THERMEC'2011
    CityQuebec City, QC
    Period11/8/111/8/5

    Fingerprint

    Perovskite
    Cooling
    Industrial heating
    Electronic states
    Temperature
    Crystal structure
    Transmission electron microscopy
    X rays
    Powder Diffraction

    Keywords

    • A-type antiferromagnetic state
    • Manganite
    • Simple perovskite
    • Transmission electron microscopy

    ASJC Scopus subject areas

    • Engineering(all)

    Cite this

    Onezawa, Y., Inoue, Y., Arao, M., & Koyama, Y. (2012). Crystallographic features of the A-type and CE-type antiferromagnetic states in the simple-perovskite manganite system Sr 1-xNd xMnO 3 In Advanced Materials Research (Vol. 409, pp. 532-537). (Advanced Materials Research; Vol. 409). https://doi.org/10.4028/www.scientific.net/AMR.409.532

    Crystallographic features of the A-type and CE-type antiferromagnetic states in the simple-perovskite manganite system Sr 1-xNd xMnO 3 . / Onezawa, Yusuke; Inoue, Yasuhide; Arao, Masazumi; Koyama, Yasumasa.

    Advanced Materials Research. Vol. 409 2012. p. 532-537 (Advanced Materials Research; Vol. 409).

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    Onezawa, Y, Inoue, Y, Arao, M & Koyama, Y 2012, Crystallographic features of the A-type and CE-type antiferromagnetic states in the simple-perovskite manganite system Sr 1-xNd xMnO 3 in Advanced Materials Research. vol. 409, Advanced Materials Research, vol. 409, pp. 532-537, 7th International Conference on Processing and Manufacturing of Advanced Materials, THERMEC'2011, Quebec City, QC, 11/8/1. https://doi.org/10.4028/www.scientific.net/AMR.409.532
    Onezawa, Yusuke ; Inoue, Yasuhide ; Arao, Masazumi ; Koyama, Yasumasa. / Crystallographic features of the A-type and CE-type antiferromagnetic states in the simple-perovskite manganite system Sr 1-xNd xMnO 3 Advanced Materials Research. Vol. 409 2012. pp. 532-537 (Advanced Materials Research).
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    AB - The electronic states of Sr 1-xNd xMnO 3 with the simple perovskite structure are characterized by a three-dimensional highly-correlated electronic system. To understand the detailed features of the A- and CE-type antiferromagnetic states in this system, their crystallographic features for x = 0.47, 0.48, and 0.50 have been investigated mainly by both x-ray powder diffraction and transmission electron microscopy. It was found at room temperature that the crystal structure for x = 0.47 was determined to have the monoclinic C2/m symmetry, while the orthorhombic Imma structure was confirmed for x = 0.48 and 0.50. The in-situ observation for x = 0.47 indicated that, in the heating process from room temperature, the C2/m-to-Imma transition occurred in the paramagnetic state, and that the A-type antiferromagnetic state appeared below about 200 K on cooling. In addition, the cooling from room temperature for x = 0.48 and 0.50 resulted in the direct transitions from the orthorhombic Imma state to the A- and CE-type antiferromagnetic states, respectively. Based on these features, we simply discussed the physical origin of the appearance of the paramagnetic state with the monoclinic symmetry for x = 0.47.

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