Spin–lattice correlations in Pr 0.55 Sr 0.45 MnO 3  studied by electron paramagnetic resonance | Zendy

Fan Jiyu | Zendy; Tong Wei | Zendy; Zhang Lei | Zendy; Shi Yangguang | Zendy; Zhu Yan | Zendy; Hu Dazhi | Zendy; Zhang Weichun | Zendy; Ying Yao | Zendy; Ling Langsheng | Zendy; Pi Li | Zendy; Zhang Yuheng | Zendy

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Spin–lattice correlations in Pr 0.55 Sr 0.45 MnO 3 studied by electron paramagnetic resonance

Author(s) -

Fan Jiyu,

Tong Wei,

Zhang Lei,

Shi Yangguang,

Zhu Yan,

Hu Dazhi,

Zhang Weichun,

Ying Yao,

Ling Langsheng,

Pi Li,

Zhang Yuheng

Publication year - 2012

Publication title -

physica status solidi (b)

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.51

H-Index - 109

eISSN - 1521-3951

pISSN - 0370-1972

DOI - 10.1002/pssb.201248192

Subject(s) - manganite , electron paramagnetic resonance , laser linewidth , condensed matter physics , paramagnetism , polaron , lattice (music) , materials science , chemistry , nuclear magnetic resonance , electron , ferromagnetism , physics , laser , quantum mechanics , acoustics , optics

Electron paramagnetic resonance studies have been performed on the perovskite manganite Pr 0.55 Sr 0.45 MnO 3 . The various spectrum parameters including line width, effective g ‐value and double‐integrated intensities have been analyzed in detail. The changes of g ‐value and linewidth are indicative of the presence of strong spin–lattice interaction in the paramagnetic regime. The lattice distortion causes the appearance of localized carriers and the formation of a small polaron. Therefore, the large activation energy obtained from two different methods implies that a strong spin–lattice correlation exists in Pr 0.55 Sr 0.45 MnO 3 .

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