Superconducting and magnetic properties of epitaxial high-quality Fe/Nb bilayers

Journal Article · Tue Apr 01 00:00:00 EST 1997 · Journal of Applied Physics

DOI:https://doi.org/10.1063/1.365454· OSTI ID:496518

Muehge, T; Zoller, I; Westerholt, K; Zabel, H ^[1]; Garifyanov, N N; Goryunov, Y V; Garifullin, I A ^[2]; Khaliullin, G G ^[3]; Tagirov, L R ^[4]

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1. Institut fuer Experimentalphysik/Festkoerperphysik, Ruhr-Universitaet Bochum, D-44780 Bochum (Germany)
2. Kazan Physicotechnical Institute of Russian Academy of Sciences, 420029 Kazan (Russian Federation)
3. Max-Planck-Institut fuer Festkoerperforschung, 70569 Stuttgart (Germany)
4. Kazan State University, 420008 Kazan (Russian Federation)

Single crystal Fe/Nb (110) bilayers with an Nb thickness d{sub Nb} in the range from 140 to 650 {Angstrom} and with an Fe thickness d{sub Fe} in the range from 5 to 100 {Angstrom} were prepared using molecular beam epitaxy (MBE) techniques. For d{sub Fe}{ge}20 {Angstrom} a decrease of the superconducting transition temperature T{sub c} with decreasing d{sub Nb} was observed. For {ital d}{sub Fe}=20 {Angstrom} the FMR data revealed a decrease of the effective magnetization of the Fe layer below the superconducting transition. This magnetization behavior is attributed to a spatial modulation of ferromagnetic order due to a modification of the RKKY interaction in the superconducting state.{copyright} {ital 1997 American Institute of Physics.}

• OSTI ID: 496518
• Report Number(s): CONF-961141-; ISSN 0021-8979; TRN: 97:016212
• Journal Information: Journal of Applied Physics, Vol. 81, Issue 8; Conference: 41. annual conference on magnetism and magnetic materials, Atlanta, GA (United States), 12-15 Nov 1996; Other Information: PBD: Apr 1997
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
IRON
MAGNETIC PROPERTIES
NIOBIUM
FERROMAGNETIC MATERIALS
SUPERCONDUCTIVITY
LAYERS
MOLECULAR BEAM EPITAXY
MAGNETIZATION
FERROMAGNETIC RESONANCE
TRANSITION TEMPERATURE