Browsing by Author "Ross, A."

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    Structural studies of Fe0.81Ga0.19 by reciprocal space mapping
    Viehland, Dwight D.; Li, Jiefang; Lograsso, Thomas A.; Ross, A.; Wuttig, Manfred (AIP Publishing, 2002-10-01)
    Reciprocal lattice mapping has been performed on Fe0.81Ga0.19 crystals by omega-omega/2theta, Psi-phi, and omega-phi scans. A strong elongation of the <001>(c) peak was found along the <110>(c) direction. omega scans revealed short lateral correlation lengths xi along <110>(c) and strong diffuse scattering along the <001>(c). Multiple domains with monoclinic symmetry (angle similar to190degrees) were observed by Psi-phi and omega-phi scans on the (001)(c) face, and were also tilted with respect to each other. The results show an average cubic structure with orthorhombic structural modulations, and two structural domain states that result in a limiting monoclinic symmetry. (C) 2002 American Institute of Physics.