International Business Machines Corporation

Kathryn Jessica Pooley

Hongwen Yan

Gerald Warren Gibson, Jr

Techniques and methods to form smooth metal layers deposited onto selected surfaces of Josephson junction devices are provided. For example, one or more embodiments described herein can comprise depositing a layer of a first material comprising metal atom species on a selected surface of a device layer; depositing a layer of a second material on a surface of the layer of first material; and performing plasma etching on the layer of second material and the layer of first material to form an etched surface of the layer of first material that is smoother than the surface of the layer of first material, as deposited.

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Croton on Hudson, NY, United States of America

Kathryn Jessica Pooley