Stripe order of holes and spins in oxygen doped nickelates

Conference · Sat Nov 01 04:00:00 EST 1997

OSTI ID:548704

Wochner, P; Tranquada, J M ^[1]; Buttrey, D J; Sachan, V ^[2]

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1. Brookhaven National Lab., Upton, NY (United States). Physics Dept.
2. Univ. of Delaware, Newark, DE (United States). Dept. of Chemical Engineering

La{sub 2}NiO{sub 4} is a Mott-Hubbard insulator consisting of antiferromagnetic NiO{sub 2} planes alternating with La{sub 2}O{sub 2} layers. The NiO{sub 2} planes can be doped with holes. There is now considerable evidence that the insulating behavior occurs because the dopant-induced holes tend to order themselves in periodically spaced stripes. The authors present a detailed neutron scattering study of the ordering of spins and holes in oxygen doped La{sub 2}NiO{sub 4.133}. The temperature dependence of the stripe spacing, the width of the stripes and the extent of their pinning to the lattice are investigated.

• Research Organization: Brookhaven National Lab., Upton, NY (United States)
• Sponsoring Organization: USDOE Office of Energy Research, Washington, DC (United States)
• DOE Contract Number: AC02-76CH00016
• OSTI ID: 548704
• Report Number(s): BNL--64814; CONF-970814--; ON: DE98001168; BR: KC0202010
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
66 PHYSICS
ANTIFERROMAGNETISM
CRYSTAL LATTICES
CRYSTAL STRUCTURE
DOPED MATERIALS
LANTHANUM COMPOUNDS
MAGNETIC PROPERTIES
NEUTRONS
NICKELATES
ORDER PARAMETERS
TEMPERATURE DEPENDENCE