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Addendum to $lqlq Doping-Dependent Magnetic Structure of Tb$_{1-x}$$Ca$$_{x}$$MnO$$_{3}$$ rqrq

Machida, Akihiko; Moritomo, Yutaka*; Oyama, Kenji*

In order to investigate interrelation between the lattice structure and the magnetic structure, we have performed Rietveld structural analysis on the neutron powder patterns for Tb$$_{1-x}$$Ca$$_{x}$$MnO$$_3$$ at low temperature. In the concentration range of $$0.65 leq x leq 0.85$$, we observed the Bragg reflections due to the CE-like- and C-type structures. In this range, the powder patterns were reproduce by the two-phase model with $$Pnma$$ and $$P2_{1}/m$$ symmetries. The fractions of these phases change against concentration $$x$$. This variation of the fraction for the $$Pnma$$ phase is similar to the variation of the integrated intensities of the CE-like-type magnetic Bragg reflections. This indicates that the $$Pnma$$ phase is responsible for the CE-like spin-ordering. Furthermore, we discussed interrelation between the detailed lattice structure and magnetic structure.

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English

Journal

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Journal of the Physical Society of Japan

Volume

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72

Number

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5

Pages

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P. 1312

Publication Year/Month

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2003/05

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DOI for research data

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Keywords

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Perovskite-type Manganites; Neutron Powder Diffraction; Magnetic Structure; Lattice Structure

Research Facility

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Press Release

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Article of JAEA R&D Review

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Cooperating Institute

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Accesses

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- Accesses

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