Magnetic rare earth superlattices. [Gd/Y, Dy/Y, Gd/Dy, Ho/Y]

Conference · Thu Jan 01 04:00:00 EST 1987

OSTI ID:5743171

Majkrzak, C F; Gibbs, D; Boeni, P; Goldman, A I; Kwo, J; Hong, M; Hsieh, T C; Fleming, R M; McWhan, D B; Yafet, Y

The magnetic structures of several single-crystal, magnetic rare earth superlattice systems grown by molecular beam epitaxy are reviewed. In particular, the results of recent neutron diffraction investigations of long-range magnetic order in Gd/Y, Dy/Y, Gd/Dy and Ho/Y periodic superlattices are presented. In the Gd/Y system, an antiphase domain structure develops for certain Y layer spacings, whereas modified helical moment configurations are found to occur in the other systems, some of which are commensurate with the chemical superlattice wavelength. References are made to theoretical interaction mechanisms recently proposed to account for the magnetic states of these novel materials. 33 refs., 6 figs., 1 tab.

• Research Organization: Brookhaven National Lab., Upton, NY (USA); AT and T Bell Labs., Murray Hill, NJ (USA); Oak Ridge National Lab., TN (USA); Risoe National Lab., Roskilde (Denmark); Kernforschungsanlage Juelich G.m.b.H. (Germany, F.R.). Inst. fuer Festkoerperforschung; Johns Hopkins Univ., Baltimore, MD (USA)
• DOE Contract Number: AC02-76CH00016; AC05-84OR21400
• OSTI ID: 5743171
• Report Number(s): BNL-40484; CONF-871126-9; ON: DE88003483
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360102 -- Metals & Alloys-- Structure & Phase Studies
360104* -- Metals & Alloys-- Physical Properties
COHERENT SCATTERING
CRYSTALS
DIFFRACTION
DOMAIN STRUCTURE
DYSPROSIUM
ELEMENTS
EPITAXY
FERROMAGNETISM
GADOLINIUM
HOLMIUM
LAYERS
MAGNETIC MOMENTS
MAGNETIC PROPERTIES
MAGNETISM
METALS
MOLECULAR BEAM EPITAXY
MONOCRYSTALS
NEUTRON DIFFRACTION
PHASE SHIFT
PHASE TRANSFORMATIONS
PHYSICAL PROPERTIES
RARE EARTHS
SCATTERING
SPIN FLIP
STRUCTURE FACTORS
SUPERLATTICES
TRANSITION ELEMENTS
X-RAY DIFFRACTION
YTTRIUM