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Dive into the research topics where D. Hupfeld is active.

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Featured researches published by D. Hupfeld.


Journal of Magnetism and Magnetic Materials | 2002

Structural and magnetic properties of [Er|Tb] superlattices

J. Voigt; Ulrich Rücker; S. Nerger; Emmanuel Kentzinger; D. Hupfeld; W. Schmidt; Th. Brückel

Abstract We report on neutron diffraction measurements and resonant X-ray magnetic scattering (RXMS) from [Er|Tb] multilayers. The magnetic correlation length differs for different sample preparation conditions. The phase diagram is a function of the single-layer thicknesses. RXMS gives evidence to the formation of helical magnetic order in Terbium below TC due to proximity effects caused by the Erbium surrounding.


EPL | 1997

THE NON-RESONANT MAGNETIC X-RAY SCATTERING CROSS-SECTION FOR PHOTON ENERGIES UP TO 500 KEV

J. Strempfer; Th. Brückel; D. Hupfeld; Klaus-Dieter Liss; Th. Tschentscher


Journal of Magnetism and Magnetic Materials | 1999

Fourth-order exchange interactions in GdxEu1-xS

U. Köbler; D. Hupfeld; Walter Schnelle; K. Mattenberger; Th. Brückel


European Physical Journal B | 2001

Antiferromagnetic order and phase transitions in GdS as studied with X-ray resonance-exchange scattering

Th. Brückel; D. Hupfeld; J. Strempfer; W. Caliebe; K. Mattenberger; A. Stunault; N. Bernhoeft; G. J. McIntyre


EPL | 2002

X-ray resonance exchange scattering from ferromagnets: A new approach and its application to EuS

D. Hupfeld; Oliver H. Seeck; J. Voigt; J. Bos; K. Fischer; Th. Brückel


EPL | 2004

Direct observation of the interlayer exchange coupling mechanism in a magnetic [Er|Tb] multilayer

J. Voigt; Emmanuel Kentzinger; Ulrich Rücker; D. Wermeille; D. Hupfeld; W. Schweika; W. Schmidt; Th. Brückel


EPL | 2000

Element-specific magnetic order and competing interactions in Gd0.8Eu0.2S

D. Hupfeld; W. Schweika; J. Strempfer; K. Mattenberger; G. J. McIntyre; Th. Brückel


Journal of Physics: Condensed Matter | 2008

Resonant magnetic x-ray scattering from terbium

J. Strempfer; D. Hupfeld; Jörg Voigt; Gustav Bihlmayer; A. I. Goldman; Th. Brückel


European Physical Journal B | 2002

Element-specific magnetic long- and short-range order and competing interactions in GdxEu1 - xS

D. Hupfeld; W. Schweika; J. Strempfer; W. Caliebe; U. Köbler; K. Mattenberger; G. J. McIntyre; F. Yakhou; Th. Brückel


Applied Physics A | 2002

Interlayer coupling in [Er‖Tb] superlattices

J. Voigt; Emmanuel Kentzinger; Ulrich Rücker; W. Schmidt; M. Ohl; D. Hupfeld; Th. Brückel

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Th. Brückel

Forschungszentrum Jülich

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W. Schweika

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J. Voigt

Forschungszentrum Jülich

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Ulrich Rücker

Forschungszentrum Jülich

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W. Schmidt

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U. Köbler

Forschungszentrum Jülich

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