Magnetic sublattice interactions in<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:msub><mml:mrow><mml:mi mathvariant="normal">UFe</mml:mi></mml:mrow><mml:mrow><mml:mn>4</mml:mn></mml:mrow></mml:msub></mml:mrow></mml:math><mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:msub><mml:mrow><mml:mi mathvariant="normal">Al</mml:mi></mml:mrow><mml:mrow><mml:mn>8</mml:mn></mml:mrow></mml:msub></mml:mrow></mml:math>

Paixão, J. A.; Lebech, B.; Gonçalves, A.P.; Brown, P.; Lander, G. H.; Burlet, P.; Delapalme, A.; Spirlet, J.C.

doi:10.1103/physrevb.55.14370

Cited by 59 publications

(38 citation statements)

References 18 publications

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“…EDS analysis shows an UFe 5.6(5) Ga 6.4 (5) composition, close to the nominal U:6Fe:6Ga ratio of the elements. Samples with lower iron concentration contain an intergranular phase, identified as FeGa 3 by EDS.…”

Section: Resultsmentioning

confidence: 99%

“…One of the most studied family of compounds with this structure is the AFe 12Kx Al x , (AZf-element) series [3][4][5][6]. The aluminium concentration necessary to stabilise the ThMn 12 -type structure is relatively high, usually higher than 50%, but the study of these medium-low iron content compounds is fundamental for a better understanding of the contribution from the different magnetic sublattices to the magnetism.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Structural and magnetic properties of UFe6Ga6

Gonçalves¹,

Waerenborgh²,

Sério³

et al. 2006

Intermetallics

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UFe 6 Ga 6 polycrystalline samples were prepared by arc-melting, and single crystals were grown by the Czochralski method. This compound crystallizes in the orthorhombic ScFe 6 Ga 6 -type structure (space group Immm, aZ5.0560(4), bZ8.5484(7) and cZ8.6914(7) Å ), an ordered variant of the ThMn 12 -type structure. A ferromagnetic-type transition at T C Z530(5) K is seen in the magnetization and A.C.-susceptibility measurements, and no other magnetic anomaly is observed down to 5 K. Single crystal magnetization measurements along the three different crystallographic axes indicated a as the easy direction, with a spontaneous magnetization M S Z12.3 m B /f.u. at 5 K. The analysis of the 57 Fe Mössbauer spectroscopy data indicated magnetic hyperfine fields, B hf , significantly lower on 4f sites than on 8k sites, in agreement with the trend already observed on UFe x Al 12Kx , where the average B hf were found to increase with the iron-iron interatomic distances. q

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Structural and magnetic properties of UFe6Ga6

Gonçalves¹,

Waerenborgh²,

Sério³

et al. 2006

Intermetallics

View full text Add to dashboard Cite

show abstract

“…Among those with potentially useful applications as hard magnets, a large variety of magnetic interactions as well as unusual magnetic behaviours, such as in AFe 4 Al 8 [1][2][3][4][5][6][7], have been reported.…”

Section: Introductionmentioning

confidence: 99%

Crystal structure, 57Fe Mössbauer spectroscopy and magnetization of UxFe6Sn6 (0≤x≤0.6)

Waerenborgh¹,

Pereira²,

Gonçalves³

et al. 2005

Intermetallics

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“…Studies in single crystals of UFe Al , showed an antiferromagnetic ordering of the iron sublattice and a ferromagnetic contribution due to the uranium atoms, below 150 K, with an unusual magnetisation process [8,9]. Previous measurements on UFe Al powder samples indicate a ferromagnetic character [6,10].…”

Section: Introductionmentioning

confidence: 99%

Crystallographic and magnetic properties of UFe5.8Al6.2 single crystals

Gonçalves¹,

Estrela

Waerenborgh³

et al. 1998

Journal of Magnetism and Magnetic Materials

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Single crystals of UFe Al were characterised by X-ray and neutron diffraction, Fe Mo¨ssbauer spectroscopy and magnetisation. The structure refinement by X-ray and neutron diffraction shows a ThMn -type structure, the Fe atoms fully occupying the 8f and partially occupying the 8j positions. Mo¨ssbauer spectra confirm these occupations and further indicate a magnetic ordering below 293 K. Magnetisation measurements show a ferromagnetic behaviour below 300 K, with a and b as easy directions and a spontaneous magnetisation of 10.4 /f.u. at 5 K, due to the Fe occupation of 8j position. These single crystal results significantly differ from those previously obtained in UFe Al polycrystalline samples obtained by melting and annealing.

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Magnetic sublattice interactions inUFe4Al8

Cited by 59 publications

References 18 publications

Structural and magnetic properties of UFe6Ga6

Structural and magnetic properties of UFe6Ga6

Crystal structure, 57Fe Mössbauer spectroscopy and magnetization of UxFe6Sn6 (0≤x≤0.6)

Crystallographic and magnetic properties of UFe5.8Al6.2 single crystals

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