Determination of the magnetic coupling in the Co/Cu/Co(100) system with momentum-resolved quantum well states

Journal Article · Mon May 17 04:00:00 EDT 1999 · Physical Review Letters

DOI:https://doi.org/10.1103/PhysRevLett.82.4098· OSTI ID:771699

Kawakami, R K ^[1]; Rotenberg, E; Escorcia-Aparicio, E J; Choi, Hyuk J; Wolfe, J H; Smith, N V; Qiu, Z Q

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1. LBNL Library

The relation between the quantum well (QW) states and the oscillatory magnetic coupling in Co/Cu/Co grown on Cu(100) was investigated by angle-resolved photoemission spectroscopy, magnetic x-ray linear dichroism, and the surface magneto-optic Kerr effect. The QW states were explained quantitatively using the phase accumulation model, and the derived QW phases at the Cu/Co interface were used to calculate the interlayer coupling. The agreement between this calculation and the experimental result reveals that the phase relation between the long- and short-period couplings is determined by the phase relation of the QW states in k-space.

• Research Organization: Lawrence Berkeley National Lab., CA (US)
• Sponsoring Organization: USDOE Director, Office of Science. Office of Basic Energy Studies. Division of Materials Sciences; National Science Foundation (US)
• DOE Contract Number: AC03-76SF00098
• OSTI ID: 771699
• Report Number(s): LBNL--43880
• Journal Information: Physical Review Letters, Journal Name: Physical Review Letters Journal Issue: 20 Vol. 82; ISSN 0031-9007; ISSN PRLTAO
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
COBALT
COPPER
DICHROISM
EMISSION SPECTROSCOPY
ENERGY LEVELS
KERR EFFECT
MAGNETIC PROPERTIES
PHOTOEMISSION
QUANTUM WELL MAGNETIC HETEROSTRUCTURES OSCILLATORY COUPLING