Browsing by Author "M.R. Chandrachood"

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    Investigations on the formation of new structural phases through stoichiometric deviations on Y sublattice in Y1Ba2Cu3O7±
    (1989) I.S. Mulla; A.P.B. Sinha; M.R. Chandrachood; C.C. Tripathi; K. Ramakrishna; A.K. Singh; O.N. Srivastava
    Attempts have been made to form new structural phases by introducing Y deficiency in YBa2Cu3O7± structure and to see if the vacancies can be ordered to give new superstructures. Y0.5Ba2Cu3O7± and Y.66Ba2Cu3O7± have been successfully prepared with structure isomorphous to 1:2:3. These compounds are superconducting with Tc between 90-92K. No ordering is, however, observed; instead Ba and Cu ions move and occupy the vacant Y sites. © 1989.
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