155Gd Mössbauer effect and magnetic properties of GdMn6Sn6

Dirken, M.W.; Thiel, R.C.; Brabers, J.H.V.J.; Boer, F.R. de; Buschow, K.H.J.

doi:10.1016/0925-8388(91)90050-6

Cited by 24 publications

(9 citation statements)

References 7 publications

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“…It is interesting to note that the trend in eQV zz seen in the lower tin compositions (figure 15) that were magnetically ordered continues to the non-magnetic x = 5.7 sample, suggesting that, while there is an abrupt change in magnetic properties, there is a gradual evolution of the (primarily) 4f contribution to eQV zz . We can obtain an estimate for the lattice contribution to the quadrupole interaction by turning to data from 155 Gd Mössbauer spectroscopy [46,47] and 159 Tb NMR [48]. Since the Gd 3+ ion has a half-filled 4f shell, the atom is spherically symmetric and so provides no local contribution to the electric field gradient.…”

Section: Zzmentioning

confidence: 99%

Valence change and magnetic order in YbMn₆Ge_{6 −x}Sn_x

Mazet¹,

Ihou‐Mouko²,

Ryan³

et al. 2010

J. Phys.: Condens. Matter

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The YbMn(6)Ge(6-x)Sn(x) compounds (0 < x < 6) have been investigated using x-ray diffraction, magnetic measurements, neutron diffraction and (170)Yb Mössbauer spectroscopy. The YbMn(6)Ge(6-x)Sn(x) system comprises three solid solutions: (i) 0 < x ≤ 1.1, (ii) 3.2 ≤ x ≤ 4.6 and (iii) 5.3 ≤ x < 6, all of which crystallize in the hexagonal (P6/mmm) HfFe(6)Ge(6)-type structure. The substitution of Sn for Ge yields changes in the type of magnetic order (antiferromagnetic, helimagnetic, ferromagnetic, conical and ferrimagnetic), in the easy magnetization direction (from easy axis to easy plane) as well as in the valence state of Yb (from trivalent to divalent). The Mn moments order at or above room temperature, while magnetic ordering of the Yb sublattice is observed at temperatures up to 110 K. While Yb is trivalent for x ≤ 1.1 and divalent for x ≥ 5.3, both magnetic and (170)Yb Mössbauer spectroscopy data suggest that there is a gradual reduction in the average ytterbium valence through the intermediate solid solution (3.2 ≤ x ≤ 4.6), and that intermediate valence Yb orders magnetically, a very unusual phenomenon. Analysis of the (170)Yb Mössbauer spectroscopy data suggests that the departure from trivalency starts as early as x = 3.2 and the loss of ytterbium moment is estimated to occur at an average valence of ∼2.5+.

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Section: Zzmentioning

confidence: 99%

Valence change and magnetic order in YbMn₆Ge_{6 −x}Sn_x

Mazet¹,

Ihou‐Mouko²,

Ryan³

et al. 2010

J. Phys.: Condens. Matter

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“…By contrast, the Curie temperatures from various sources, 435-442 K [1,2,4], are in reasonable agreement. The Mn sublattice displays an easy-plane anisotropy in the entire temperature interval below T C [2,4,7,13]. The anisotropy constants K 1 and K 2 were estimated to be −1.1 MJ/m 3 and 0.225 MJ/m 3 , respectively [7].…”

Section: Introductionmentioning

confidence: 99%

Magnetic properties of a GdMn6Sn6 single crystal

Gorbunov

Kuz’min

Uhlířová

et al. 2012

Journal of Alloys and Compounds

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“…The lattice has an intrinsic layered structure. In these compounds, the rare-earth sublattice orders together with the Mn sublattice somewhat above room temperature [1][2][3][4][5][6][7][8][9]. The competition between different interlayer exchange interactions results in variety of magnetic structures.…”

Section: Introductionmentioning

confidence: 99%