Positive exchange biasing inGdFe∕NiCoObilayers with antiferromagnetic coupling

Positive exchange biasing in GdFe/NiCoO bilayers with antiferromagnetic coupling

D. Z. Yang,1,4 J. Du,2,3 L. Sun,3 X. S. Wu,3 X. X. Zhang,2 and S. M. Zhou1,3,* 1Surface Physics Laboratory (National Key Laboratory) and Department of Physics, Fudan University, Shanghai 200433, People’s Republic of China 2Department of Physics, Hong Kong University of Science & Technology, Kowloon, Hong Kong, People’s Republic of China 3State Key Laboratory of Solid State Microstructures, Nanj...

Antiferromagnetic s-d exchange coupling in GaMnAs.

Measurements of coherent electron spin dynamics in Ga1-xMnxAs/Al0.4Ga0.6As quantum wells with 0.0006%<x<0.03% show an antiferromagnetic (negative) exchange between s-like conduction band electrons and electrons localized in the d shell of the Mn2+ impurities. The magnitude of the s-d exchange parameter, N0alpha, varies as a function of well width indicative of a large and negative contribution ...

Interfacial Co nanolayers for enhancing interlayer exchange coupling in antiferromagnetic interlayer exchange coupling media

Significant enhancement of the interlayer coupling strength has been achieved by depositing Co nanolayers on both sides of the Ru layer in a conventional CoCrPt/Ru/CoCrPt antiferromagnetic interlayer exchange coupling structure. The interlayer coupling increases nearly linearly from 0.13 to 0.8 erg/cm and then levels off with an increase in Co thickness. Substrate bias was found to be very harm...

Exchange coupling induced antiferromagnetic-ferromagnetic transition in Pr0.5Ca0.5MnO3/La0.5Ca0.5MnO3 superlattices.

Exchange Biasing: Domains and AE Structure

It is well known that magnetic exchange coupling across the ferromagnet–antiferromagnet interface results in an unidirectional magnetic anisotropy of the ferromagnetic layer, called exchange bias. Despite large experimental and theoretical efforts, the origin of exchange bias is still controversial, mainly because detection of the interfacial magnetic structure is difficult. We have applied pho...