INVESTIGATION OF SURFACE MAGNETIC STRUCTURE IN STEELS OF A SYSTEMFe–Mn–Al–CBY ATOMIC FORCE MICROSCOPY

G. L. Klimchitskaya (), R. Prioli, S. I. Zanette, A. O. Caride, O. Acselrad, I. S. Kalashnikov, E. M. Silva and R. A. Simão
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G. L. Klimchitskaya: Centro Brasileiro de Pesquisas Físicas, Rua Xavier Sigaud, 150, CEP 2220-900, RJ, Brazil
R. Prioli: Centro Brasileiro de Pesquisas Físicas, Rua Xavier Sigaud, 150, CEP 2220-900, RJ, Brazil
S. I. Zanette: Centro Brasileiro de Pesquisas Físicas, Rua Xavier Sigaud, 150, CEP 2220-900, RJ, Brazil
A. O. Caride: Centro Brasileiro de Pesquisas Físicas, Rua Xavier Sigaud, 150, CEP 2220-900, RJ, Brazil
O. Acselrad: Departamento de Programa de Engenharia Metalurgica e de Materialas, Universidade Federal de Rio de Janeiro, Ilha do Fundão, RJ, Brazil
I. S. Kalashnikov: Departamento de Programa de Engenharia Metalurgica e de Materialas, Universidade Federal de Rio de Janeiro, Ilha do Fundão, RJ, Brazil
E. M. Silva: Departamento de Programa de Engenharia Metalurgica e de Materialas, Universidade Federal de Rio de Janeiro, Ilha do Fundão, RJ, Brazil
R. A. Simão: Departamento de Programa de Engenharia Metalurgica e de Materialas, Universidade Federal de Rio de Janeiro, Ilha do Fundão, RJ, Brazil

Surface Review and Letters (SRL), 1999, vol. 06, issue 01, 115-125

Abstract: Magnetic force microscopy (MFM) is used to investigate the surface magnetic structure of steels Fe–28Mn–8.5Al–1C–1.4Si under the different regimes of isothermal aging. A theoretical model for the MFM imaging of such structures is developed. Calculation of van der Waals forces is performed in order to interpret the topography images. The lateral resolution in terms of the magnetic field dependence on the surface coordinates is investigated. Finally, conditions that should be fulfilled for a good imaging of the samples are formulated.

Date: 1999
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DOI: 10.1142/S0218625X99000147

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