Understanding the insulating phase in colossal magnetoresistance manganites: Shortening of the Jahn-Teller long-bond across the phase diagram of La1-xCaxMnO3

E. S. Božin; M. Schmidt; A. J. Deconinck; G. Paglia; J. F. Mitchell; T. Chatterji; P. G. Radaelli; Th Proffen; S. J.L. Billinge

doi:10.1103/PhysRevLett.98.137203

Understanding the insulating phase in colossal magnetoresistance manganites: Shortening of the Jahn-Teller long-bond across the phase diagram of La1-xCaxMnO3

E. S. Božin
, M. Schmidt
, A. J. Deconinck
, G. Paglia
, J. F. Mitchell
, T. Chatterji
, P. G. Radaelli
, Th Proffen
, S. J.L. Billinge

Research output: Contribution to journal › Article › peer-review

68 Scopus citations

Abstract

The detailed evolution of the magnitude of the local Jahn-Teller (JT) distortion in La1-xCaxMnO3 is obtained across the phase diagram for 0≤x≤0.5 from high-quality neutron diffraction data using the atomic pair distribution function method. A local JT distortion is observed in the insulating phase for all Ca concentrations studied. However, in contrast with earlier local structure studies, its magnitude is not constant, but decreases continuously with increasing Ca content. This observation is at odds with a simple small-polaron picture for the insulating state.

Original language	English
Article number	137203
Journal	Physical Review Letters
Volume	98
Issue number	13
DOIs	https://doi.org/10.1103/PhysRevLett.98.137203
State	Published - Mar 27 2007
Externally published	Yes

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10.1103/PhysRevLett.98.137203

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Božin, E. S., Schmidt, M., Deconinck, A. J., Paglia, G., Mitchell, J. F., Chatterji, T., Radaelli, P. G., Proffen, T., & Billinge, S. J. L. (2007). Understanding the insulating phase in colossal magnetoresistance manganites: Shortening of the Jahn-Teller long-bond across the phase diagram of La1-xCaxMnO3. Physical Review Letters, 98(13), Article 137203. https://doi.org/10.1103/PhysRevLett.98.137203

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title = "Understanding the insulating phase in colossal magnetoresistance manganites: Shortening of the Jahn-Teller long-bond across the phase diagram of La1-xCaxMnO3",

abstract = "The detailed evolution of the magnitude of the local Jahn-Teller (JT) distortion in La1-xCaxMnO3 is obtained across the phase diagram for 0≤x≤0.5 from high-quality neutron diffraction data using the atomic pair distribution function method. A local JT distortion is observed in the insulating phase for all Ca concentrations studied. However, in contrast with earlier local structure studies, its magnitude is not constant, but decreases continuously with increasing Ca content. This observation is at odds with a simple small-polaron picture for the insulating state.",

author = "Bo{\v z}in, \{E. S.\} and M. Schmidt and Deconinck, \{A. J.\} and G. Paglia and Mitchell, \{J. F.\} and T. Chatterji and Radaelli, \{P. G.\} and Th Proffen and Billinge, \{S. J.L.\}",

year = "2007",

month = mar,

day = "27",

doi = "10.1103/PhysRevLett.98.137203",

language = "English",

volume = "98",

journal = "Physical Review Letters",

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number = "13",

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Božin, ES, Schmidt, M, Deconinck, AJ, Paglia, G, Mitchell, JF, Chatterji, T, Radaelli, PG, Proffen, T & Billinge, SJL 2007, 'Understanding the insulating phase in colossal magnetoresistance manganites: Shortening of the Jahn-Teller long-bond across the phase diagram of La1-xCaxMnO3', Physical Review Letters, vol. 98, no. 13, 137203. https://doi.org/10.1103/PhysRevLett.98.137203

TY - JOUR

T1 - Understanding the insulating phase in colossal magnetoresistance manganites

T2 - Shortening of the Jahn-Teller long-bond across the phase diagram of La1-xCaxMnO3

AU - Božin, E. S.

AU - Schmidt, M.

AU - Deconinck, A. J.

AU - Paglia, G.

AU - Mitchell, J. F.

AU - Chatterji, T.

AU - Radaelli, P. G.

AU - Proffen, Th

AU - Billinge, S. J.L.

PY - 2007/3/27

Y1 - 2007/3/27

N2 - The detailed evolution of the magnitude of the local Jahn-Teller (JT) distortion in La1-xCaxMnO3 is obtained across the phase diagram for 0≤x≤0.5 from high-quality neutron diffraction data using the atomic pair distribution function method. A local JT distortion is observed in the insulating phase for all Ca concentrations studied. However, in contrast with earlier local structure studies, its magnitude is not constant, but decreases continuously with increasing Ca content. This observation is at odds with a simple small-polaron picture for the insulating state.

AB - The detailed evolution of the magnitude of the local Jahn-Teller (JT) distortion in La1-xCaxMnO3 is obtained across the phase diagram for 0≤x≤0.5 from high-quality neutron diffraction data using the atomic pair distribution function method. A local JT distortion is observed in the insulating phase for all Ca concentrations studied. However, in contrast with earlier local structure studies, its magnitude is not constant, but decreases continuously with increasing Ca content. This observation is at odds with a simple small-polaron picture for the insulating state.

UR - https://www.scopus.com/pages/publications/33947614833

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DO - 10.1103/PhysRevLett.98.137203

M3 - Article

AN - SCOPUS:33947614833

SN - 0031-9007

VL - 98

JO - Physical Review Letters

JF - Physical Review Letters

IS - 13

M1 - 137203

ER -

Understanding the insulating phase in colossal magnetoresistance manganites: Shortening of the Jahn-Teller long-bond across the phase diagram of La1-xCaxMnO3

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