Electrical Transport in Ferromagnetic Alloys and Glasses
{'Code': '03070003', 'Directorate': {'Abbreviation': 'MPS', 'LongName': 'Direct For Mathematical & Physical Scien'}, 'Division': {'Abbreviation': 'DMR', 'LongName': 'Division Of Materials Research'}}
{'SignBlockName': 'Carol A. Savory-Heflin', 'PO_EMAI': None, 'PO_PHON': None}
They will measure the s-d exchange forces between magnetic domain               walls and electric currents in nickel-iron thin films, in a large               range of film thickness.  The dependence of the force on the                    Neel, Bloch, or cross-tie structure of the wall and on the                      electron mean free path will be studied.  The motion of Bloch                   lines under the influence of current-induced gyroscopic forces                  will be investigated, in nickel-iron films or in amorphous                      cobalt-zirconium films.  The current-induced motion of walls                    containing such mobile Bloch lines will also be studied.                        Similarly, the motion of bubble domains in directions transverse                to a current, in gadolinium-cobalt films.  The gyroscopic forces                responsible for these phenomena arise from the s-d exchange                     interaction.  Finally, the d.c. voltage, predicted to exist                     across a magnetic domain wall when the wall moment is precessing,               will be looked for.  The purpose of the proposed measurements is                to increase the understanding of interactions between electronic                and magnetic degrees of freedom, mediated by exchange and spin-                 orbit energies in metallic ferromagnets.
{'FirstName': 'Luc', 'LastName': 'Berger', 'PI_MID_INIT': None, 'PI_SUFX_NAME': None, 'PI_FULL_NAME': 'Luc Berger', 'EmailAddress': None, 'NSF_ID': '000226571', 'StartDate': '09/01/1988', 'EndDate': None, 'RoleCode': 'Principal Investigator'}
{'Name': 'Carnegie-Mellon University', 'CityName': 'PITTSBURGH', 'ZipCode': '152133815', 'PhoneNumber': '4122688746', 'StreetAddress': '5000 FORBES AVE', 'StreetAddress2': None, 'CountryName': 'United States', 'StateName': 'Pennsylvania', 'StateCode': 'PA', 'CONGRESSDISTRICT': '18', 'CONGRESS_DISTRICT_ORG': 'PA18', 'ORG_UEI_NUM': 'U3NKNFLNQ613', 'ORG_LGL_BUS_NAME': 'CARNEGIE MELLON UNIVERSITY', 'ORG_PRNT_UEI_NUM': 'U3NKNFLNQ613'}
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{'Code': '1761', 'Text': 'SOLID STATE PHYSICS'}
{'url': 'https://www.nsf.gov/awardsearch/download?DownloadFileName=1988&All=true', 'xml': '8803632.xml'}