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Understanding the insulating phase in CMR manganites: Shortening of the Jahn-Teller long-bond across the phase diagram of La_{1-x} Ca_x Mn O_3

Abstract:

The detailed evolution of the magnitude of the local Jahn-Teller (JT) distortion in La_{1-x} Ca_x Mn O_3 is obtained across the phase diagram for 0 < x < 0.5 from high quality neutron diffraction data using the atomic pair distribution function (PDF) 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 cont...

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Publication date:
2006-09-19
Keywords:
Pubs id:
pubs:90420
UUID:
uuid:069631a0-b5ba-4a4b-b4d4-7b59664aa9bb
Local pid:
pubs:90420
Source identifiers:
90420
Deposit date:
2012-12-19

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