Exchange Coupling and Exchange Bias in FM/AFM Bilayers for a Fully Compensated AFM Interface
نویسندگان
چکیده
منابع مشابه
Positive exchange bias in FeF2-Fe bilayers.
We have discovered a positive unidirectional exchange anisotropy in antiferromagnetic (FeF2) and ferromagnetic (Fe) bilayers cooled through the antiferromagnetic critical temperature TN in large magnetic fields. For low positive cooling fields, the ferromagnet’s magnetization (M-H) loop center shifts to negative fields, as is normally observed in other systems. In contrast, large cooling fields...
متن کاملDynamic exchange coupling in magnetic bilayers.
A long-range dynamic interaction between ferromagnetic films separated by normal-metal spacers is reported, which is communicated by nonequilibrium spin currents. It is measured by ferromagnetic resonance and explained by an adiabatic spin-pump theory. In such a resonance the spin-pump mechanism of spatially separated magnetic moments leads to an appreciable increase in the resonant linewidth w...
متن کاملExchange coupling and exchange bias in La0.7Sr0.3MnO3-SrRuO3 superlattices.
La(0.7)Sr(0.3)MnO(3)-SrRuO(3) superlattices with and without nanometrically thin SrTiO(3), BaTiO(3) and Ba(0.7)Sr(0.3)TiO(3) interlayers were grown by pulsed laser deposition. Transmission electron microscopy studies showed coherent growth of La(0.7)Sr(0.3)MnO(3), SrRuO(3) and SrTiO(3) layers with atomically sharp interfaces, even if individual layers were as thin as one or two unit cells. In c...
متن کاملLarge exchange bias and its connection to interface structure in FeF2–Fe bilayers
Large exchange bias effects (DE;1.1 erg/cm) were observed in antiferromagnetic ~FeF2) –ferromagnetic ~Fe! bilayers grown on MgO. The FeF2 grows along the spin-compensated ~110! direction. The FeF2–Fe interface roughness was characterized using specular and diffuse x-ray diffraction and atomic force microscopy. The magnitude of the exchange bias field HE increases as the interface roughness decr...
متن کاملExchange biasing and interface structure in MnNiÕFe„Mo... bilayers
The role of magnetic, structural, and chemical roughness on the origin of exchange biasing in polycrystalline Mn52Ni48 /Fe92~Mo8) bilayers has been investigated by transmission x-ray magnetic circular dichroism ~XMCD!, vibrating sample magnetometry ~VSM!, and transmission electron microscopy ~TEM!. Three bilayer samples of MnNi~22 nm!/Fe~Mo! ~6 nm! were grown by molecular beam epitaxy under ult...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Acta Physica Polonica A
سال: 2009
ISSN: 0587-4246,1898-794X
DOI: 10.12693/aphyspola.115.25