A Mössbauer effect study of dilute CrFe alloys

Herbert, I.R.; Clark, Paul; Wilson, G. V. H.

doi:10.1016/s0022-3697(72)80258-0

Cited by 49 publications

(14 citation statements)

References 24 publications

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“…1 are typical of those of disordered solid solutions. [20][21][22][23] The broadened magnetic sextets are expected for the high Cr concentrations in these alloys. No paramagnetic peak is detected in the center of the spectra from Fe 0.30 Cr 0.70 or Fe 0.53 Cr 0.47 that could indicate the presence of Fe in a Cr-rich regions caused by spinodal decomposition.…”

Section: Experimental Methodsmentioning

confidence: 96%

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Partial phonon densities of states ofFe57in Fe-Cr: Analysis by a local-order cluster expansion

et al. 2007

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Nuclear resonant inelastic x-ray scattering spectra were measured for 57 Fe in disordered body-centered-cubic alloys of Fe-Cr. Partial phonon density of states ͑DOS͒ curves were obtained from these data. These results, in conjunction with the results of Ruckert et al. ͓Hyperfine Interact. 126, 363 ͑2000͔͒ on Fe-Cr thin-film multilayers and alloys, were analyzed with a local-order cluster expansion method. Interaction partial phonon DOS functions for the different short-range correlation functions were obtained from the disordered alloys. These interaction DOS functions were used in reconstructing the 57 Fe partial DOS curves measured by Ruckert et al. on a set of thin-film multilayer samples of 57 Fe/ 56 Fe/ Cr. The method worked well using terms up to a combined first-and second-nearest-neighbor triangle cluster, which were obtained reliably from the disordered alloys. The limitations of a basis set of correlation functions from disordered alloys are discussed but shown to be acceptable for the chemical trends of phonons in the Fe-Cr system.

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Section: Experimental Methodsmentioning

confidence: 96%

“…Mössbauer spectrometry has been used extensively to characterize bcc Fe-Cr alloys and the sigma-phase compound. 17,[19][20][21][22][23] The 57 Fe atom serves as a probe of its local environment, detecting the presence of Cr atoms in its first and second coordination spheres. The Mössbauer spectra of Fig.…”

Section: Experimental Methodsmentioning

confidence: 99%

Partial phonon densities of states ofFe57in Fe-Cr: Analysis by a local-order cluster expansion

et al. 2007

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“…For x ≥ ∼75, AFeCr shows a steeper decrease with x and its value at x ≈ 95 is about 7-8 times smaller than that for a pure iron. For very diluted Fe100−xCrx alloys (x > 99), Fe atoms posses the magnetic moment of ∼1.4 B+, yet the hyperfine field is as small as 3.5 T [36], consequently the effective hyperfine coupling constant is equal only to 1.5 T/ B i.e. 10 times less than for x = 0.…”

Section: Hyperfine Field Versus Magnetic Momentmentioning

confidence: 99%

“…The plot was constructed based on the data published in Refs. [24,25,[28][29][30][31][32][33][34][35][36][37][38][39]. It is clear that the data do not follow any unique linear relationship.…”

Section: Hyperfine Field Versus Magnetic Momentmentioning

confidence: 99%

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Relationship between the magnetic hyperfine field and the magnetic moment

Dubiel

2009

Journal of Alloys and Compounds

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a b s t r a c tBased on experimental data it is shown, for some chosen alloys and compounds of iron, that there is no unique relationship between the 57 Fe-site magnetic hyperfine field, B hf , and the magnetic moment per Fe atom, . Instead, the B hf -plot consists of several branches, each of them being characteristic of a given alloy or compound. Consequently, the effective proportionality constant (hyperfine coupling constant) depends on the alloy system or compound, and for a given alloy system or compound it depends on the composition or even on the lattice site. Consequently, the scaling of B hf into the underlying cannot be done a priori.

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The origin of ferromagnetism and antiferromagnetism in alloys of transition metals. II. Alloys of transition metals with other transition metals and with polyvalent non-transition elements

Vogt

1976

Phys. Stat. Sol. (a)

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A Mössbauer effect study of dilute CrFe alloys

Cited by 49 publications

References 24 publications

Partial phonon densities of states ofFe57in Fe-Cr: Analysis by a local-order cluster expansion

Partial phonon densities of states ofFe57in Fe-Cr: Analysis by a local-order cluster expansion

Relationship between the magnetic hyperfine field and the magnetic moment

The origin of ferromagnetism and antiferromagnetism in alloys of transition metals. II. Alloys of transition metals with other transition metals and with polyvalent non-transition elements

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