Results from full profile analysis of powder neutron diffraction patterns (
lambda = 1.05 Angstrom and lambda = 2.475 Angstrom) taken at room temperatu
re are presented. The refinements in space group R (3) over bar yielded con
siderably better reliability factors than those obtained in group R (3) ove
r bar m as suggested in previous X-ray diffraction works. (C) 2000 Elsevier
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