Surface Crystallography by Low-Energy Ion Scattering
{'Code': '03070003', 'Directorate': {'Abbreviation': 'MPS', 'LongName': 'Direct For Mathematical & Physical Scien'}, 'Division': {'Abbreviation': 'DMR', 'LongName': 'Division Of Materials Research'}}
{'SignBlockName': 'H. Hollis Wickman', 'PO_EMAI': None, 'PO_PHON': None}
The objectives  of this research are to determine the structures                of the surfaces of various thin-film electronic materials using                 the techniques of low-energy ion scattering (LEIS) and scanning                 tunneling microscopy (STM).  Systems to be studied include:                     monolayer films of ferromagnetic iron and nickel on silver(001)                 surfaces, thin heteroepitaxial films of copper-chlorine on                      silicon(111), the chemical interaction of gold atoms with                       gallium-arsenic(110), and the gold-catalyzed oxidation of silicon               surfaces.  The two complementary techniques will be employed to                 construct accurate atomic resolution models of these systems and                the substrates on which they are supported.  A new mathematical                 algorithm will be developed for calculating the angular                         distributions of low-energy particles scattered from solid                      surfaces.  The ion scattering apparatus will be modified to                     permit time-of-flight detection of scattered ions and neutrals.                 This will facilitate study of charge exchange mechanisms on an                  attosecond time scale between ions and surfaces.
{'FirstName': 'R. Stanley', 'LastName': 'Williams', 'PI_MID_INIT': None, 'PI_SUFX_NAME': None, 'PI_FULL_NAME': 'R. Stanley Williams', 'EmailAddress': 'stan_williams@hp.com', 'NSF_ID': '000377085', 'StartDate': '06/15/1989', 'EndDate': None, 'RoleCode': 'Principal Investigator'}
{'Name': 'University of California-Los Angeles', 'CityName': 'LOS ANGELES', 'ZipCode': '900244200', 'PhoneNumber': '3107940102', 'StreetAddress': '10889 WILSHIRE BLVD STE 700', 'StreetAddress2': None, 'CountryName': 'United States', 'StateName': 'California', 'StateCode': 'CA', 'CONGRESSDISTRICT': '36', 'CONGRESS_DISTRICT_ORG': 'CA36', 'ORG_UEI_NUM': 'RN64EPNH8JC6', 'ORG_LGL_BUS_NAME': 'UNIVERSITY OF CALIFORNIA, LOS ANGELES', 'ORG_PRNT_UEI_NUM': None}
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[{'Code': '1761', 'Text': 'SOLID STATE PHYSICS'}, {'Code': '1972', 'Text': 'ELECTROCHEMISTRY & SURFACE CHE'}]
{'url': 'https://www.nsf.gov/awardsearch/download?DownloadFileName=1988&All=true', 'xml': '8820391.xml'}