Pinned magnetization in the antiferromagnet and ferromagnet of an exchange bias system

Journal Article · Fri Jun 01 00:00:00 EDT 2007 · Physical Review. B, Condensed Matter and Materials Physics

DOI:https://doi.org/10.1103/PHYSREVB.75.214412· OSTI ID:20951522

Fitzsimmons, M R; Kirby, B J ^[1]; Roy, S; Zhipan, Li; Roshchin, Igor V; Schuller, Ivan K ^[2]; Sinha, S K ^[1]

---

1. Los Alamos National Laboratory, Los Alamos, New Mexico 87545 (United States)
2. Department of Physics, University of California at San Diego, La Jolla, California 92093 (United States)

Using polarized neutron reflectometry, we obtained separate depth profiles for pinned and unpinned magnetization across the interface of a ferromagnet/antiferromagnet bilayer as a function of the sign of exchange bias. The pinned and unpinned magnetization depth profiles are nonuniform and extend well beyond the chemical interface, suggesting an interfacial region magnetically distinct from its surroundings. A model that includes pinned and unpinned moments in the ferromagnet and antiferromagnet is developed for a complete description of the data.

• OSTI ID: 20951522
• Journal Information: Physical Review. B, Condensed Matter and Materials Physics, Vol. 75, Issue 21; Other Information: DOI: 10.1103/PhysRevB.75.214412; (c) 2007 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 1098-0121
• Country of Publication: United States
• Language: English

Related Subjects

75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ANTIFERROMAGNETISM
DEPTH
EXCHANGE INTERACTIONS
FERROMAGNETISM
INTERFACES
MAGNETIC MOMENTS
MAGNETIZATION
NEUTRONS