Published 1994 | Version v1
Report Open

The magnetic structure of holmium-erbium superlattices

Creators

  • 1. Risoe National Lab., Roskilde (Denmark)
  • 2. Oxford Physics, Clarendon Lab. (United Kingdom)
  • 3. Brookhaven National Lab., Upton, NY (United States)

Description

The effect of completing crystal-field anisotropies on magnetic order has been investigated in a series of Ho/Er superlattices using neutron and resonant x-ray magnetic diffraction techniques. The neutron diffraction reveals that for temperatures in the interval TN(Er) ≤ T ≤ TN(Ho) the Ho basal-plane order propagates coherently through the paramagnetic Er, and that below TN(Er) the longitudinal component of the Er moments fails to order across the Ho block. The magnetic superlattice peaks observed in the x-ray scattering display an anomalous energy dependence: a sharp resonance is found at LIII(Ho), with no resonance visible at LIII(Er). These results are discussed with reference to models of exchange in metallic superlattices

Availability note (English)

MF available from INIS under the Report Number; Also available from OSTI as DE94013728; NTIS; US Govt. Printing Office Dep.

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Additional details

Publishing Information

Imprint Pagination
8 p.
Report number
BNL--60489

Conference

Title
International conference on magnetism.
Dates
22-26 Aug 1994.
Place
Warsaw (Poland).

INIS

Country of Publication
United States
Country of Input or Organization
United States
INIS RN
25066101
Subject category
S36: MATERIALS SCIENCE; S75: CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; S36: MATERIALS SCIENCE;
Resource subtype / Literary indicator
Conference
Descriptors DEI
ERBIUM; HOLMIUM; MAGNETIC PROPERTIES; MOLECULAR BEAM EPITAXY; NEUTRON DIFFRACTION; SUPERLATTICES; X-RAY DIFFRACTION
Descriptors DEC
COHERENT SCATTERING; CRYSTAL GROWTH METHODS; DIFFRACTION; ELEMENTS; EPITAXY; METALS; PHYSICAL PROPERTIES; RARE EARTHS; SCATTERING

Optional Information

Contract/Grant/Project number
Contract AC02-76CH00016
Funding organization
USDOE, Washington, DC (United States).
Secondary number(s)
CONF-940819--3.