p–f mixing in CeSb, studied by resonant X-ray scattering

Stunault, A.; Vettier, C.; Regnault, L.P.; Bergevin, F. de; Paolasini, L.; Henry, J.Y.

doi:10.1016/j.physb.2003.11.024

Cited by 2 publications

(1 citation statement)

References 11 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Cerium, with only one 4f electron in the magnetic state Ce 3+ and small magnetic moments is a rather poor candidate for xray magnetic scattering studies, and only very few examples are found in the literature [19][20][21][22]. The case of CeAl 2 is even more delicate due to its reduced moments (≈0.7 μ B compared to the free ion value of 2.14 μ B ) and to the presence of 6 magnetic k-domains.…”

Section: X-ray Magnetic Scatteringmentioning

confidence: 99%

Direct observation of double-klattice modulation in double-kmagnetic structures. The case of CeAl₂

Stunault

Schweizer

Givord

et al. 2009

J. Phys.: Condens. Matter

View full text Add to dashboard Cite

Symmetry analysis is combined with x-ray scattering experiments to investigate the lattice modulation associated with the incommensurate magnetic structure in the case of a double- k structure. The expansion of the free energy shows that the components of the magnetic structure with propagation vectors k(1) and k(2) can couple via components of lattice modulations. It is shown that the classical diffraction peaks reflecting a 2k propagation vector, associated with magneto-elastic effects in single- k structures, will coexist with diffraction peaks with propagation vectors k(1)-k(2) or k(1)+k(2). The existence of these latter peaks can be considered as a signature of a double- k magnetic structure. In the case of the double- k modulated structure of CeAl(2), group theory is applied directly to the study of the charge modulation. An x-ray scattering study of the 2k satellites shows that the lattice displacements of the two Ce sites of the structure are antiparallel to each other, and perpendicular to the direction of the magnetic modulation. We also confirm experimentally the existence of k(1)+k(2) satellites.

show abstract

Section: X-ray Magnetic Scatteringmentioning

confidence: 99%

Direct observation of double-klattice modulation in double-kmagnetic structures. The case of CeAl₂

Stunault

Schweizer

Givord

et al. 2009

J. Phys.: Condens. Matter

View full text Add to dashboard Cite

show abstract

High‐Resolution Experimental Methods

et al. 2007

View full text Add to dashboard Cite

The continuing rise in turbine entry temperatures has necessitated the development of ever-more advanced cooling techniques. Effusion cooling, which is characterised by a high density of film holes operating at low blowing ratios, represents one possible mechanism for achieving high overall cooling effectiveness. This paper presents an experimental investigation performed on flat-plate, effusion-type cooling geometries (with primary hole pitches of 3.0D and 5.75D) using pressure sensitive paint to yield high-resolution film effectiveness distributions using the heat/mass transfer analogy. CFD was used to model the setup computationally, with results comparing favourably to the experiments. The CFD domain was then altered to model a single hole. A superposition method was developed and applied to the two dimensional film effectiveness distribution, yielding data for an array of closely-packed holes. The method produced satisfactory results at higher pitches, but at lower pitches, high levels of jet interactions reduced the performance of the superposition method.

show abstract

p–f mixing in CeSb, studied by resonant X-ray scattering

Cited by 2 publications

References 11 publications

Direct observation of double-klattice modulation in double-kmagnetic structures. The case of CeAl₂

Direct observation of double-klattice modulation in double-kmagnetic structures. The case of CeAl₂

High‐Resolution Experimental Methods

Contact Info

Product

Resources

About

p–f mixing in CeSb, studied by resonant X-ray scattering

Cited by 2 publications

References 11 publications

Direct observation of double-klattice modulation in double-kmagnetic structures. The case of CeAl2

Direct observation of double-klattice modulation in double-kmagnetic structures. The case of CeAl2

High‐Resolution Experimental Methods

Contact Info

Product

Resources

About

Direct observation of double-klattice modulation in double-kmagnetic structures. The case of CeAl₂

Direct observation of double-klattice modulation in double-kmagnetic structures. The case of CeAl₂