Magnetic interlayer coupling between Co films across Cu/Ni30Cu70/Cu(100) double quantum wells

Journal Article · Tue May 18 00:00:00 EDT 1999 · Physical Review B

OSTI ID:771875

Zhang, Z D; Choi, H J; Kawakami, R K; Escorcia-Aparicio, E J; Bowen, M O; Rotenberg, E; Smith, N V; Qiu, Z Q

Magnetic interlayer coupling between two Co layers across Cu/Ni 30 Cu 70 /Cu(100) was investigated by the surface magneto-optic Kerr effect. The Ni 30 Cu 70 layer at the center of the Cu layer was shown to shift the peak positions, rather than to change the strength, of the magnetic interlayer coupling. The density of states near the Fermi level was investigated by photoemission spectroscopy. We show that the peak-position shift in the magnetic interlayer coupling is associated with the quantum-well behavior in a symmetric double-quantum-well system. The phase accumulation model was applied to explain the results quantitatively.

• Research Organization: Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
• Sponsoring Organization: USDOE Director, Office of Science. Office of Basic Energy Studies. Division of Materials Sciences (US)
• DOE Contract Number: AC03-76SF00098
• OSTI ID: 771875
• Report Number(s): LBNL-46095; R&D Project: 458111; TRN: AH200104%%164
• Journal Information: Physical Review B, Vol. 61, Issue 1; Other Information: PBD: 18 May 1999
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
FERMI LEVEL
KERR EFFECT
PHOTOEMISSION
SPECTROSCOPY
COPPER
COPPER ALLOYS
COBALT
NICKEL ALLOYS
MAGNETIC COUPLING QUANTUM WELL