Accession Number : ADA327341

Title :   High Resolution Photoemission Studies of Interfaces in High-Tc Superconductors.

Descriptive Note : Rept. for 1 Mar 95-28 Feb 98,

Corporate Author : STANFORD UNIV CA DEPT OF APPLIED PHYSICS

Personal Author(s) : Shen, Z. X.

PDF Url : ADA327341

Report Date : MAY 1996

Pagination or Media Count : 9

Abstract : Our research has involved using angle-resolved photoemission spectroscopy (ARPES) as a nano-scale probe of the electronic structure of surfaces and interfaces of high-temperature superconductors. Photoemission has provided unique and valuable information because of its surface sensitivity, excellent energy resolution, and ability to detect core-level chemical shifts. The information has strong implications for a fundamental understanding of the electronic structure of the cuprates as well as the construction of practical devices such as Josephson junctions. We will focus on: (1) description of custom-designed thin film samples of high temperature superconductors (HTSC) and the development of methods to study them with ARPES, (2) electronic structure measurements using ARPES, including the measurement of energy gaps, (3) the implications for characteristics of devices using HTSC, and (4) proximity effect searches.

Descriptors :   *INTERFACES, *SURFACES, *PHOTOELECTRIC EMISSION, *HIGH TEMPERATURE SUPERCONDUCTORS, ELECTRONICS, MEASUREMENT, DETECTION, THIN FILMS, ENERGY GAPS, HIGH RESOLUTION, ELECTRONS, SURFACE PROPERTIES, OXIDES, COPPER COMPOUNDS, SAMPLING, JOSEPHSON JUNCTIONS, CHEMICAL SHIFTS.

Subject Categories : Inorganic Chemistry
      Electrooptical and Optoelectronic Devices
      Electricity and Magnetism

Distribution Statement : APPROVED FOR PUBLIC RELEASE