Electron Beam Induced Oxygen Disordering in Yba2cu307-X Superconductors Academic Article

abstract

• ABSTRACTThin foils of bulk YBa2Cu3O7x (YBCO) superconductors were subjected to electron irradiation in a Transmission Electron Microscope (TEM). The resulting disordering of the oxygen atoms and vacancies in the Cu-0 planes was monitored by measuring the splitting of the (110) diffraction spots in the [001] diffraction pattern. Samples were irradiated at 83K with 100, 150, 200 and 300kV electrons. The 100kV electrons did not cause any disordering, even after prolonged irradiation. The results of the higher energy irradiations showed an excellent fit to a disordering model, indicating a lack of radiation assisted reordering at 83K. This was further confirmed by the insensitivity of the disordering to the dose rate of 300kV electrons at 83K. However, at 300K, an increase in the dose rate of 300kV electrons increased the disordering rate, indicating that radiation assisted reordering was occuring at that temperature.

authors

• Nastasi, Michael

published proceedings

• MRS Advances

author list (cited authors)

• Basu, S. N., Roy, T., Mitchell, T. E., & Nastasi, M.

citation count

• 0

publication date

• 1989

publisher

• Springer Nature  Publisher

published in

• MRS Advances  Journal

keywords

• 34 Chemical Sciences
• 3403 Macromolecular And Materials Chemistry
• 40 Engineering
• 4016 Materials Engineering
• 4018 Nanotechnology

Digital Object Identifier (DOI)

• 10.1557/proc-157-581

start page

• 581

volume

• 157

URL

• http://dx.doi.org/10.1557/proc-157-581