Observation of the Quantum Well Interference in Magnetic Nanostructures by Photoemission

Journal Article · Sun Feb 01 04:00:00 EST 1998 · Physical Review Letters

DOI:https://doi.org/10.1103/PhysRevLett.80.1754· OSTI ID:591854

Kawakami, R K; Escorcia-Aparicio, E J; Choi, H J; Qiu, Z Q ^[1]; Rotenberg, E; Smith, N V ^[2]; Cummins, T R; Tobin, J G ^[3]

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1. Department of Physics, University of California, Berkeley, California 94720 (United States)
2. Advanced Light Source, Lawrence Berkeley National Laboratory, Berkeley, California 94720 (United States)
3. Lawrence Livermore National Laboratory, Livermore, California 94550 (United States)

The Cu/Co/Ni/Co(100) system was investigated by photoemission to study the interference between the Cu quantum well and the Ni layer. By varying their separation, we found that the density of states of the Cu quantum well states were biperiodically modulated. This result provides clear evidence for the quantum interference between two quantum wells in magnetic nanostructures. The biperiodicity was identified to correspond to the two Fermi vectors of the Co minority energy bands. {copyright} {ital 1998} {ital The American Physical Society}

• Research Organization: Lawrence Berkeley National Laboratory
• DOE Contract Number: AC03-76SF00098
• OSTI ID: 591854
• Journal Information: Physical Review Letters, Journal Name: Physical Review Letters Journal Issue: 8 Vol. 80; ISSN 0031-9007; ISSN PRLTAO
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
ADVANCED LIGHT SOURCE
COBALT
COPPER
ELECTRONIC STRUCTURE
LAYERS
NICKEL
PHOTOEMISSION