Weak charge-lattice coupling requires reinterpretation of stripes of charge order in La1-xCaxMnO3

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dc.creatorLoudon, J. C.
dc.creatorCox, S.
dc.creatorWilliams, A. J.
dc.creatorAttfield, J. P.
dc.creatorLittlewood, P. B.
dc.creatorMidgley, P. A.
dc.creatorMathur, N. D.
dc.date2003-08-27
dc.date2005-01-26
dc.date.accessioned2026-07-07T02:53:09Z
dc.date.available2026-07-07T02:53:09Z
dc.descriptionModulations in manganites attributed to stripes of charge/orbital/spin order are thought to result from strong electron-lattice interactions that lock the superlattice and parent lattice periodicities. Surprisingly in La1-xCaxMnO3(x>0.5, 90 K), convergent beam (3.6 nm spot) electron diffraction patterns rule out charge stacking faults and indicate a superlattice with uniform periodicity. Moreover, large area electron diffraction peaks are sharper than simulations with stacking faults. Since the electron-lattice coupling does not lock the two periodicities (to yield stripes) it may be too weak to strongly localise charge.
dc.descriptionAnalysis and interpretation are improved and presented better
dc.identifierhttps://arxiv.org/abs/cond-mat/0308581
dc.identifierhttp://arxiv.org/abs/cond-mat/0308581
dc.identifierPhys. Rev. Lett. 94 (2005) 097202
dc.identifierdoi:10.1103/PhysRevLett.94.097202
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/22102
dc.subjectStrongly Correlated Electrons
dc.titleWeak charge-lattice coupling requires reinterpretation of stripes of charge order in La1-xCaxMnO3
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