TITLE

Highly asymmetric magnetic behavior in exchange biased systems induced by noncollinear field cooling

AUTHOR(S)
Jiménez, E.; Camarero, J.; Sort, J.; Nogués, J.; Hoffmann, A.; Teran, F. J.; Perna, P.; García-Martín, J. M.; Dieny, B.; Miranda, R.
PUB. DATE
September 2009
SOURCE
Applied Physics Letters;9/21/2009, Vol. 95 Issue 12, p122508
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
A detailed study of the angular dependence of the magnetization reversal in polycrystalline ferromagnetic (FM)/antiferromagnetic Co/IrMn bilayers with noncollinear FM and unidirectional anisotropies shows a peculiar asymmetric magnetic behavior. The anisotropy configuration is set via a field cooling (FC) procedure with the magnetic field misaligned with respect to the easy magnetization direction of the FM layer. Different magnetization reversal modes are observed for either positive or negative angles with respect to the FC direction. The angular dependence of both coercivity and exchange bias also clearly displays the broken symmetry of the induced noncollinearity. Our findings are reproduced with a modified Stoner–Wohlfarth model including the induced anisotropy configuration. Our results highlight the importance of the relative angle between anisotropies in exchange bias systems, opening a new path for the tailoring of their magnetic properties.
ACCESSION #
44374711

 

Related Articles

  • Plutonium gives up its secrets. Aron, Jacob // New Scientist;5/26/2012, Vol. 214 Issue 2866, p17 

    The article reports on research published in "Science" by physicist Georgios Koutroulakis and team on the reduction of the magnetic properties of plutonium-239 by cooling the substance to near absolute zero, which allows for the measurement of its chemical signature.

  • Micromagnetic analysis of remanence and coercivity of nanocrystalline Pr–Fe–B magnets. Suess, D.; Dahlgren, M.; Schrefl, T.; Gro¨ssinger, R.; Fidler, J. // Journal of Applied Physics;5/1/2000, Vol. 87 Issue 9, p6573 

    Nanocrystalline exchange coupled Pr[sub 11.76]Fe[sub 82.36]B[sub 5.88] single-phase and Pr[sub 9]Fe[sub 85]B[sub 6] two-phase magnets containing 20 vol % α-Fe were produced using mechanical alloying. Micromagnetic finite element simulations were used to analyze the temperature dependence of...

  • Spin-dependent electron transport in manganite bicrystal junctions. Petrzhik, A.; Demidov, V.; Ovsyannikov, G.; Borisenko, I.; Shadrin, A. // Journal of Experimental & Theoretical Physics;Nov2012, Vol. 115 Issue 5, p876 

    Magnetic bicrystal films and junctions of magnetic LaSrMnO (LSMO) and LaCaMnO (LCMO) films epitaxially grown on NdGaO substrates with the (110) planes of their two parts misoriented (tilted) at angles of 12°, 22°, 28°, and 38° are investigated. For comparison, bicrystal boundaries...

  • Magnetoplastic effect upon twinning of bismuth single crystals. Ostrikov, O. M. // Journal of Applied Mechanics & Technical Physics;May/Jun2001, Vol. 42 Issue 3, p516 

    The effect of the magnetic field on the twinning of bismuth single crystals is studied. It is shown that a 1 T magnetic field contributes to an about twofold increase in the length and number of twins that appear near an external–stress concentrator.

  • Investigation of the elastic properties of UNI[sub 2] Si[sub 2] as a function of temperature, magnetic field, and pressure. Quirion, G.; Kelly, A.; Newbury, S.; Razavi, F.S.; Garrett, J.D. // Canadian Journal of Physics;Jun2003, Vol. 81 Issue 6, p797 

    It is now well-established that the strong anisotropy in the magnetic properties of the intermetallic compounds UT2Si2, where T stands for a transition metal, is responsible for their rich magnetic phase diagram. However, within that series of compounds, UNi2Si2 is one that shows an unusual...

  • Measuring low alternating magnetic fields by means of Bi-containing rare-earth ferrite-garnet films with planar anisotropy. Vetoshko, Peter M.; Volkovoy, Vadim B.; Zalogin, Vladimir N.; Toporov, Andrey Yu. // Journal of Applied Physics;11/15/1991, Vol. 70 Issue 10, p6298 

    Focuses on a study which measured the low alternating magnetic fields of bismuth-containing rare-earth ferrite-garnet films with planar anisotropy. Experimental procedures; Description of the magnetic fields; Results and discussion.

  • Magnetohydrodynamic Effects on Insulating Bubbles and Inclusions in the Continuous Casting of Steel. Haverkort, J.W.; Peeters, T.W.J. // Metallurgical & Materials Transactions. Part B;Dec2010, Vol. 41 Issue 6, p1240 

    The magnetohydrodynamic effects associated with a magnetic field perpendicular to the movement of insulating inclusions or bubbles in a conducting liquid are investigated in this article. An increase in drag coefficient as a result of the presence of a magnetic field is argued to have a...

  • Direct Measurements of Magneto-caloric Effect of GdSiGe Alloys in Low Magnetic Field. Zeng, Hong; Zhang, Jiuxing; Kuang, Chunjiang; Yue, Ming // Journal of Superconductivity & Novel Magnetism;Apr2012, Vol. 25 Issue 2, p487 

    Direct measurements of the magneto-caloric effect of GdSiGe alloys under heat treatment conditions are investigated by measuring adiabatic temperature change (Δ T) in a magnetic field of 1.5 T using a homemade magnetocaloric effect measuring apparatus. The crystal structure, microstructure...

  • Recent high-resolution neutron inelastic scattering studies of magnetic systems (invited). Stirling, W. G. // Journal of Applied Physics;4/15/1985, Vol. 57 Issue 8, p3778 

    Presents high-resolution neutron inelastic scattering studies of magnetic systems. Introduction to conventional neutron scattering instrumentation; Discussion on critical scattering in antiferromagnetic USb; Magnetic excitations in the light rare-earth elements, praseodymium and neodymium.

Share

Read the Article

Courtesy of VIRGINIA BEACH PUBLIC LIBRARY AND SYSTEM

Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics