Charge Ordered State in the Impurity-Doped Manganites

S. Mori, R. Shoji, N. Yamamoto, A. Machida, Y. Moritomo, Takuro Katsufuji

研究成果: Article

10 引用 (Scopus)

抄録

Impurity effect on the charge and orbital ordered (CO/OO) state in doped manganites has been studied by the transmission electron microscopy (TEM), in addition to the electric and magnetic measurements. In the Cr-doped manganites (Nd0.5Ca0.5Mn1-yCryO3), the CO/OO state characterized by the incommensurate wave vector is still realized as the microdomains with the size of 10-30 nm even at lower temperature of 20 K. On the other hand, the Sc-doped manganites (Nd 0.5Ca0.5Mn1-ySCy-O3) clearly show an incommensurate to commensurate structural phase transition accompanying the formation of the long-ranged CO/OO state around 60 K. From our experimental findings, it is suggested that the substituted Cr3+ and Sc3+ ions serve as the spin impurity and hole vacancy, respectively.

元の言語English
ページ(範囲)1280-1283
ページ数4
ジャーナルJournal of the Physical Society of Japan
71
発行部数5
DOI
出版物ステータスPublished - 2002 5
外部発表Yes

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impurities
magnetic measurement
orbitals
transmission electron microscopy
ions

ASJC Scopus subject areas

  • Physics and Astronomy(all)

これを引用

Charge Ordered State in the Impurity-Doped Manganites. / Mori, S.; Shoji, R.; Yamamoto, N.; Machida, A.; Moritomo, Y.; Katsufuji, Takuro.

:: Journal of the Physical Society of Japan, 巻 71, 番号 5, 05.2002, p. 1280-1283.

研究成果: Article

Mori, S, Shoji, R, Yamamoto, N, Machida, A, Moritomo, Y & Katsufuji, T 2002, 'Charge Ordered State in the Impurity-Doped Manganites', Journal of the Physical Society of Japan, 巻. 71, 番号 5, pp. 1280-1283. https://doi.org/10.1143/JPSJ.71.1280
Mori, S. ; Shoji, R. ; Yamamoto, N. ; Machida, A. ; Moritomo, Y. ; Katsufuji, Takuro. / Charge Ordered State in the Impurity-Doped Manganites. :: Journal of the Physical Society of Japan. 2002 ; 巻 71, 番号 5. pp. 1280-1283.
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AU - Mori, S.

AU - Shoji, R.

AU - Yamamoto, N.

AU - Machida, A.

AU - Moritomo, Y.

AU - Katsufuji, Takuro

PY - 2002/5

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N2 - Impurity effect on the charge and orbital ordered (CO/OO) state in doped manganites has been studied by the transmission electron microscopy (TEM), in addition to the electric and magnetic measurements. In the Cr-doped manganites (Nd0.5Ca0.5Mn1-yCryO3), the CO/OO state characterized by the incommensurate wave vector is still realized as the microdomains with the size of 10-30 nm even at lower temperature of 20 K. On the other hand, the Sc-doped manganites (Nd 0.5Ca0.5Mn1-ySCy-O3) clearly show an incommensurate to commensurate structural phase transition accompanying the formation of the long-ranged CO/OO state around 60 K. From our experimental findings, it is suggested that the substituted Cr3+ and Sc3+ ions serve as the spin impurity and hole vacancy, respectively.

AB - Impurity effect on the charge and orbital ordered (CO/OO) state in doped manganites has been studied by the transmission electron microscopy (TEM), in addition to the electric and magnetic measurements. In the Cr-doped manganites (Nd0.5Ca0.5Mn1-yCryO3), the CO/OO state characterized by the incommensurate wave vector is still realized as the microdomains with the size of 10-30 nm even at lower temperature of 20 K. On the other hand, the Sc-doped manganites (Nd 0.5Ca0.5Mn1-ySCy-O3) clearly show an incommensurate to commensurate structural phase transition accompanying the formation of the long-ranged CO/OO state around 60 K. From our experimental findings, it is suggested that the substituted Cr3+ and Sc3+ ions serve as the spin impurity and hole vacancy, respectively.

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KW - Perovskite manganites

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