U.S.-Argentina Cooperative Research:  Theoretical Models forRadiation-Enhanced Diffusion During Ion Implantation
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This award supports cooperative research in condensed                           matter theory to be carried out by Diana Farkas of the                          Virginia Polytechnic Institute and E.J. Savino of the                           Atomic Energy Commission in Buenos Aires.  Theoretical                          models will be developed for transport mechanisms that                          occur during ion implantation alloying and ion beam                             mixing.  The collaboration began with concentrating on                          phenomenological models and it is now proposed to study the                     particular transport mechanisms that occur during                               irradiation.  Starting with Monte Carlo simulation of                           collisional mixing, including dynamic compositional                             changes, the study will proceed to look at segregation                          effects during implantation due to point defects and                            investigate ion beam mixing in layered structures.                                                                                                              The collaboration has been productive, resulting in several                     papers in good journals.  Both the P.I.'s are recognized as                     experts in theoretical analysis of radiation effects and                        impurity defect interactions.  The research area has wide                       application in ceramics and semiconductors as well as in                        metals and alloys.
{'FirstName': 'Diana', 'LastName': 'Farkas', 'PI_MID_INIT': None, 'PI_SUFX_NAME': None, 'PI_FULL_NAME': 'Diana Farkas', 'EmailAddress': 'diana@vt.edu', 'NSF_ID': '000237794', 'StartDate': '02/15/1989', 'EndDate': None, 'RoleCode': 'Principal Investigator'}
{'Name': 'Virginia Polytechnic Institute and State University', 'CityName': 'BLACKSBURG', 'ZipCode': '240603359', 'PhoneNumber': '5402315281', 'StreetAddress': '300 TURNER ST NW', 'StreetAddress2': 'STE 4200', 'CountryName': 'United States', 'StateName': 'Virginia', 'StateCode': 'VA', 'CONGRESSDISTRICT': '09', 'CONGRESS_DISTRICT_ORG': 'VA09', 'ORG_UEI_NUM': 'QDE5UHE5XD16', 'ORG_LGL_BUS_NAME': 'VIRGINIA POLYTECHNIC INSTITUTE & STATE UNIVERSITY', 'ORG_PRNT_UEI_NUM': 'X6KEFGLHSJX7'}
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{'Code': '5911', 'Text': 'ARGENTINA'}
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