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Scholarly Works, Institute for Critical Technology and Applied Science (ICTAS)

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https://hdl.handle.net/10919/24353
Research articles, presentations, and other scholarship

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Browsing Scholarly Works, Institute for Critical Technology and Applied Science (ICTAS) by Author "Bhattacharyya, Somnath"

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    Nanodispersed DO(3)-phase nanostructures observed in magnetostrictive Fe-19% Ga Galfenol alloys
    Bhattacharyya, Somnath; Jinschek, J. R.; Khachaturyan, Armen G.; Cao, Hu; Li, Jiefang; Viehland, Dwight D. (American Physical Society, 2008-03-10)
    Few nanometer large (<2 nm) inclusions of DO(3)-phase structure have been identified in the A2 matrix of highly magnetostrictive Fe-19% Ga alloys by high-resolution transmission electron microscopy (HRTEM). In addition, we have found that these nanostructures include a high density of {100} line defects with a Burgers vector of a(bcc)/2 < 100 >. This dispersion of DO(3)-phase nanostructures formed within the main A2 matrix and the lifting of their coherency by defects are consistent with a recent theory for the structure and properties of magnetostrictive Fe-Ga and Fe-Al alloys.