Rearrangement of the charge ordering from checkerboard-type to stripe-type in La1.5Sr0.5NiO4

Preprint

18 February 2002

preprint
Published by arXiv in arXiv

Abstract

The charge ordering in La1.5Sr0.5NiO4 has been studied with neutron diffraction technique. An interesting rearrangement of the charge ordering was observed as a function of temperature. With decreasing temperature, a checkerboard-type charge order is formed below T{CO-C} ~ 480 K. It is, however, taken over by the stripe-type charge order with an incommensurability twice as large as that of the spin order below T{CO-IC} ~ 180 K. Surprisingly, the stripe phase persists up to x = 0.7 for the highly hole-doped samples of Nd{2-x}Sr{x}NiO{4} with 0.45 < x < 0.7.

Keywords

OBSERVED AS A FUNCTION
NEUTRON DIFFRACTION
CHECKERBOARD TYPE
CHARGE ORDERING
REARRANGEMENT
STRIPE TYPE
SPIN ORDER
NIO

All Related Versions

Version 1, 2002-02-18, ArXiv
Version 2, 2002-11-12, ArXiv
Published version: Physical Review B, 67 (1), 014511.

This publication has 0 references indexed in Scilit: