Exchange-spring behavior in epitaxial hard/soft magnetic bilayers
EE Fullerton, JS Jiang, M Grimsditch, CH Sowers… - Physical Review B, 1998 - APS
We present results on the magnetic reversal process in epitaxial Sm-Co (11 00)/TM (TM= Fe,
Co) bilayer films prepared via magnetron sputtering. The magnetically hard Sm-Co films
have 20-T uniaxial anisotropy and coercivities> 3 T at room temperature, that double on
cooling, as determined by magnetometry. The TM layers are exchange coupled to the Sm-
Co layer and exhibit reversible demagnetization curves expected for an exchange-spring
magnet. We also present numerical solutions of a one-dimensional model that provide the …
Co) bilayer films prepared via magnetron sputtering. The magnetically hard Sm-Co films
have 20-T uniaxial anisotropy and coercivities> 3 T at room temperature, that double on
cooling, as determined by magnetometry. The TM layers are exchange coupled to the Sm-
Co layer and exhibit reversible demagnetization curves expected for an exchange-spring
magnet. We also present numerical solutions of a one-dimensional model that provide the …
[引用][C] Exchange-Spring Behavior in Epitaxial Hard/Soft Magnetic Bilayers
JS Jiang, EE Fullerton, M Grimsditch… - 1998 IEEE …, 1998 - ieeexplore.ieee.org
We present results on the magnetic reversal process in epitaxial Sm-Co (1 100)/TM (TM= Fe,
CO) bilayer films prepared via magnetron sputtering. The Sm-Co layers are hexagonal h-
axis oriented due to growth on MgO (110) buffered with Cr (21 I). The Sm-Co layers are
magnetically hard; they have a 20-T uniaxial anisotropy and coercivities> 3 T at room
temperature, that double on cooling, as determined by magnetometry. As expected for an
exchange-spring magnet, the magnetization of the soft TM layer is fully reversible before the …
CO) bilayer films prepared via magnetron sputtering. The Sm-Co layers are hexagonal h-
axis oriented due to growth on MgO (110) buffered with Cr (21 I). The Sm-Co layers are
magnetically hard; they have a 20-T uniaxial anisotropy and coercivities> 3 T at room
temperature, that double on cooling, as determined by magnetometry. As expected for an
exchange-spring magnet, the magnetization of the soft TM layer is fully reversible before the …
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