RUI: New Application of the Thomas-Fermi Theory to          Electronic Screening of Point Charge Impurities in          Insulators (Materials Research)
{'Code': '03070005', 'Directorate': {'Abbreviation': 'MPS', 'LongName': 'Direct For Mathematical & Physical Scien'}, 'Division': {'Abbreviation': 'DMR', 'LongName': 'Division Of Materials Research'}}
{'SignBlockName': 'Ben Coleman', 'PO_EMAI': None, 'PO_PHON': None}
Development of a new application of the Thomas-Fermi theory to                  the study of electronic screening of charged point impurities in                insulators will be continued.  This new approach takes                          account of the insulator-type band structure (within a simple                   model): specifically, the gap is directly taken into account at                 the outset in the formation of the functional giving the electron               density in terms of the electrostatic potential.  Previous                      studies of this problem have been based upon various adaptations                of metallic band structures for modeling the insulator.                         As the case of the positive point charge at temperature T=0 has                 recently been analyzed using this new method, (with the                         interesting result of intrinsic nonlinear long range screening)                 they will first examine the problem of a negatively charged point               impurity at T=0.  This is nontrivially different from the                       positive impurity case, e.g., it involves a "Coulomb hole."                     Next, the above study will be extended to nonzero temperatures.                 Finally they expect to begin investigation of exchange effects in               the above framework.
{'FirstName': 'Joseph', 'LastName': 'Oliva', 'PI_MID_INIT': None, 'PI_SUFX_NAME': None, 'PI_FULL_NAME': 'Joseph Oliva', 'EmailAddress': None, 'NSF_ID': '000460191', 'StartDate': '08/15/1987', 'EndDate': None, 'RoleCode': 'Principal Investigator'}
{'Name': 'California State University-Long Beach', 'CityName': 'LONG BEACH', 'ZipCode': '908154670', 'PhoneNumber': '5629855314', 'StreetAddress': '6300 E STATE UNIVERSITY DR STE 3', 'StreetAddress2': None, 'CountryName': 'United States', 'StateName': 'California', 'StateCode': 'CA', 'CONGRESSDISTRICT': '42', 'CONGRESS_DISTRICT_ORG': 'CA42', 'ORG_UEI_NUM': 'P2TDH1JCJD31', 'ORG_LGL_BUS_NAME': 'CALIFORNIA STATE UNIVERSITY LONG BEACH RESEARCH FOUNDATION', 'ORG_PRNT_UEI_NUM': None}
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{'Code': '174300', 'Text': 'NATIONAL FACILITIES'}
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