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Bilayer manganites: polarons in the midst of a metallic breakdown

Abstract:

The exact nature of the low temperature electronic phase of the manganite materials family, and hence the origin of their colossal magnetoresistant (CMR) effect, is still under heavy debate. By combining new photoemission and tunneling data, we show that in La{2-2x}Sr{1+2x}Mn2O7 the polaronic degrees of freedom win out across the CMR region of the phase diagram. This means that the generic ground state is that of a system in which strong electron-lattice interactions result in vanishing coher...

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Publication status:
Published
Peer review status:
Peer reviewed
Version:
Accepted Manuscript

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Publisher copy:
10.1038/nphys2089

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Publisher:
Nature Publishing Group Publisher's website
Journal:
Nature Physics Journal website
Volume:
7
Issue:
12
Pages:
978-982
Publication date:
2011-09-05
DOI:
EISSN:
1745-2481
ISSN:
1745-2473
URN:
uuid:9e6eb9f1-a02b-4c8c-bcef-c485ea6c60a5
Source identifiers:
179772
Local pid:
pubs:179772
Language:
English
Keywords:

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