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Diffuse x-ray scattering from La[sub 2[minus][ital x]]Sr[sub [ital x]]NiO[sub 4] and La[sub 2[minus][ital y]]Sr[sub [ital y]]CuO[sub 4]

Journal Article · · Physical Review Letters; (United States)
; ; ; ; ;  [1]
  1. AT T Bell Laboratories, 600 Mountain Ave, Murray Hill, New Jersey 07974 (United States) Oak Ridge Insitute for Science and Education, Brookhaven National Laboratory , Upton, New York 11973 (United States) Department of Chemical Engineering, Colburn Laboratory, University of Delaware, Newark, Delaware 19716 (United States)

We use synchrotron x-ray scattering from La[sub 1.8]Sr[sub 0.2]NiO[sub 4] and La[sub 1.925]Sr[sub 0.075]CuO[sub 4] to establish a direct relationship between carriers due to Sr doping and strong diffuse scattering. In the nickelate the scattering is peaked at the fourfold symmetric satellite positions ([plus minus][delta],[plus minus][delta],[ital l]), where the basal-plane coordinate [delta] varies with the out-of-plane coordinate [ital l] of the momentum transfer. A similar scattering pattern is observed in the cuprate but with smaller values for [delta].

DOE Contract Number:
AC05-84OR21400
OSTI ID:
7205505
Journal Information:
Physical Review Letters; (United States), Journal Name: Physical Review Letters; (United States) Vol. 72:21; ISSN 0031-9007; ISSN PRLTAO
Country of Publication:
United States
Language:
English