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Topic Area: Nanomagnetics

Displaying records 151 to 160 of 218 records.
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151. Magnetism in Cr Thin Films on Fe(100)
Topic: Nanomagnetics
Published: 1/1/1992
Authors: John Unguris, Robert Celotta, Daniel Thornton Pierce
Abstract: The spin polarization of secondary electrons from a Cr film on Fe(100), measured with scanning electron microscopy with polarization analysis, oscillates as a function of Cr thickness with a period near two atomic layers, consistent with incommensura ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=620406

152. Correlations of Modulation Noise with Magnetic Microstructure and Intergranular Interactions for CoCrTa and CoNi Thin Film Media
Topic: Nanomagnetics
Published: 1/1/1991
Authors: Mahbub R. Khan, S Y. Lee, S L Duan, J L Pressesky, Neil Heiman, D E Speliotis, M Scheinfein
Abstract: This paper reports on two thin-film media alloys Co^d86^Cr^d12^Ta^d2^ and Co^d75^Ni^d25^ which have very different noise characteristics. The magnetic microstructure of these films was observed with scanning electron microscopy with polarization anal ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=620386

153. Magnetic Imaging via Scanning Electron Microscopy with Polarization Analysis
Topic: Nanomagnetics
Published: 1/1/1991
Authors: Robert Celotta, M Scheinfein, John Unguris, Daniel Thornton Pierce
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=620372

154. Micromagnetics of Domain Walls At Surfaces
Topic: Nanomagnetics
Published: 1/1/1991
Authors: M Scheinfein, John Unguris, J L. Blue, Kevin J Coakley, Daniel Thornton Pierce, Robert Celotta, P J Ryan
Abstract: High-spatial-resolution magnetization maps of ferromagnetic surfaces are generated with use of scanning electron microscopy with polarization analysis (SEMPA). The structure of surface Neel walls is measured by SEMPA and compared directly to the res ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=620362

155. Observation of Two Different Oscillation Periods in the Exchange Coupling of Fe/Cr/Fe(100)
Topic: Nanomagnetics
Published: 1/1/1991
Authors: John Unguris, Robert Celotta, Daniel Thornton Pierce
Abstract: Oscillations of ferromagnetic to antiferromagnetic exchange coupling between two Fe layers separated by a Cr spacer of linearly increasing thickness were investigated by imaging the magnetic domains with scanning electron microscopy with polarization ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=620385

156. Scanning Electron Microscopy with Polarization Analysis (SEMPA) Studies of Domains, Domain Walls and Magnetic Singularities at Surfaces and in Thin Films
Topic: Nanomagnetics
Published: 1/1/1991
Authors: M Scheinfein, John Unguris, M Aeschlimann, Daniel Thornton Pierce, Robert Celotta
Abstract: Scanning Electron Microscopy with Polarization Analysis (SEMPA) is used to investigate the surface magnetic microstructure of domain walls in thin permalloy films and the domain structure of magneto-optic TbFeCo alloys. Domain wall measurements conf ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=620373

157. Scanning Electron Microscopy with Polarization Analysis: An Update
Topic: Nanomagnetics
Published: 1/1/1991
Authors: John Unguris, M W Hart, Robert Celotta, Daniel Thornton Pierce
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=620383

158. 180{degree} Surface Domain Wall Magnetization Profiles: Comparisons Between Scanning Electron Microscopy with Polarization Analysis Measurements, Magneto-Optic Kerr Microscopy Measurements and Micromagnetic Models
Topic: Nanomagnetics
Published: 1/1/1990
Authors: M Scheinfein, P J Ryan, John Unguris, Daniel Thornton Pierce, Robert Celotta
Abstract: We compare measurements of magnetization profiles across a 180{degree} surface domain wall in a 0.24-{mu}m-thick of Permalloy (Ni^d81^Fe^d19^), obtained with scanning electron microscopy with polarization analysis (SEMPA) and longitudinal magneto-opt ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=620361

159. Correlations Between Magnetic Microstructure and Anisotropy with Noise Spectra for CoNi and CoCrTa Thin Film Media
Topic: Nanomagnetics
Published: 1/1/1990
Authors: M Scheinfein, John Unguris, Daniel Thornton Pierce, Robert Celotta
Abstract: This paper reports on two thin film media alloys co^d86^Cr^d12^Ta^d2^ and Co^d75^Ni^d25^ whcih have very different noise characteristics. The magnetic microstructure of thse films was observed with SEMPA. The anisotropy and teh rotational hysteresi ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=620369

160. High Spatial Resolution Quantitative Micromagnetics
Topic: Nanomagnetics
Published: 1/1/1990
Authors: M Scheinfein, John Unguris, Daniel Thornton Pierce, Robert Celotta
Abstract: Magnetization profiles at surfaces are observed with scanning electron microscopy with polarization analysis (SEMPA). This technique allows for quantitative analysis of the vector magnetization profile with 70 nm spatial resolution. Magnetization pr ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=620344



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