Hysteresis of two interacting magnetic pairs with inequivalent perpendicular anisotropy Academic Article

abstract

• We consider a model for magnetic memory that consists of strongly coupled dipolar or antiferromagnetic (AF) pairs with inequivalent perpendicular anisotropy K 1 and K 2 . For appropriate parameter values, determined in this work, they have two inequivalent storage states with zero net magnetic moment. Both analytical and numerical calculations are performed, in some cases yielding different results because of relaxation effects (i.e., a dependence on the damping parameter ). Hysteresis loops for a wide variety of parameter values are obtained, both for the AF case and the dipole case. An Appendix gives analytic results for slightly non-collinear spins in an applied field, which were used to test the numerical results. 2006 Elsevier B.V. All rights reserved.

authors

• Saslow, Wayne

published proceedings

• JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS

author list (cited authors)

• King, B. T., Saslow, W. M., & Kayali, M. A.

citation count

• 1

complete list of authors

• King, Benjamin T||Saslow, Wayne M||Kayali, M Amin

publication date

• February 2007

publisher

• Elsevier  Publisher

published in

• Journal of Magnetism and Magnetic Materials  Journal

keywords

• Hysteresis
• Magnetic Memory
• Magnetics

Digital Object Identifier (DOI)

• 10.1016/j.jmmm.2006.07.005

start page

• 229

end page

• 236

volume

• 309

issue

• 2

URL

• http://dx.doi.org/10.1016/j.jmmm.2006.07.005