A superconducting film of DyBa2Cu3O7−x was examined below 30 K with a scanning tunneling spectroscopy, i.e. scanning tunneling microscope (STM) images and tunneling data were obtained over the same area. Images were observed and some I-V's showed charging effects.
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*Supported in part by Materials Research Grou~ Program under Grant NSF/DMR-8908094 and Department of Administration of the State of MInnesota.