Magnetic x-ray scattering at relativistic energies

Colarieti-Tosti, Massimiliano; Sacchetti, F.

doi:10.1103/physrevb.58.5173

Cited by 2 publications

(2 citation statements)

References 16 publications

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“…͑2.1͒ for energies larger than 100 keV has been demonstrated experimentally 1 and later confirmed theoretically. 12 Hence, to a first approximation, no orbital contribution to the magnetic signal exists with this method. For neutrons, on the other hand, the diffracted intensity is proportional to the linear combination L ជ (Q ជ )ϩ2S ជ (Q ជ ) of the Fourier transforms of the orbital and spin angular momenta.…”

Section: High-energy X-ray Diffractionmentioning

confidence: 95%

Magnetic properties of transition metal fluoridesMF2(M=Mn,Fe, Co, Ni) via high-

et al. 2004

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We present an overview of recent results from nonresonant magnetic diffraction experiments on the antiferromagnetic compounds MnF 2 , FeF 2 , CoF 2 , and NiF 2 using high-energy synchrotron radiation of photon energies above 100 keV. New results are presented on the determination of the spin and of the L/S ratio for CoF 2 and NiF 2 . For CoF 2 , the saturation value of the long-range-ordered pure spin S z component S z ϭ1.11(1) is considerably lower than the value S z ϭ3/2 for the free Co 2ϩ ion. This is in contrast to our results for NiF 2 , where the full spin of the free transition-metal ion was found, S z ϭ0.98(1). The temperature dependence of the magnetization in the critical region as well as in the low-temperature region is also presented. For all compounds, Ising behavior is found in the critical regime, whereas the crossover to the low-temperature spin-wave behavior varies. We attribute this to different anisotropies in this series of compounds.

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Section: High-energy X-ray Diffractionmentioning

confidence: 95%

Magnetic properties of transition metal fluoridesMF2(M=Mn,Fe, Co, Ni) via high-

et al. 2004

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“…The validity of Eq. (1) for energies larger than 100 keV has been demonstrated experimentally [15] and later confirmed theoretically [17]. Hence, 3152 0031-9007͞01͞86(14)͞3152(4)$15.00…”

mentioning

confidence: 86%

Absolute Spin Magnetic Moment ofFeF2from High Energy Photon Diffraction

2001

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The magnetic spin structure factor of FeF2 has been directly determined from high energy magnetic x-ray diffraction at 115 keV photon energy. A pure spin moment of mu = 4.01(5)mu(B) was observed, which agrees very well with the spin moment of the free Fe2+ ion and differs significantly from values of the total magnetic moment obtained by other methods. The magnetic phase transition of FeF2 has been carefully investigated and values for the critical exponent of the order parameter obtained by other techniques have been confirmed.

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Magnetic x-ray scattering at relativistic energies

Cited by 2 publications

References 16 publications

Magnetic properties of transition metal fluoridesMF2(M=Mn,Fe, Co, Ni) via high-

Magnetic properties of transition metal fluoridesMF2(M=Mn,Fe, Co, Ni) via high-

Absolute Spin Magnetic Moment ofFeF2from High Energy Photon Diffraction

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