Following out-of-stoichiometry phase coexistence with neutron techniques

Señas, A; Fernández, J. Rodrı́guez; Sal, J.C. Gómez; Campo, Javier; André, G.

doi:10.1016/j.physb.2004.03.031

Cited by 3 publications

(3 citation statements)

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“…Some previous research has performed a systematic study on the magnetic properties of TbPt x Cu 1−x series using XRD, neuron diffraction and scanning electron microscopy techniques [8,9,11]. The transition from ferromagnetism (FM) to antiferromagnetism (AFM) with increasing Cu concentration has been studied without the variance of ionic distance.…”

Section: Discussionmentioning

confidence: 99%

“…Señas et al [8] reported that x = 0.3 is the composition limit between both FM and AFM behaviors, and suggested that the FM to AFM change is due to the modifications on the conduction band as a result of Cu substitutions. This is the case when the conduction band is solely the transport medium of the magnetic interactions in the rare earth compounds [7,[9][10][11].…”

Section: Discussionmentioning

confidence: 99%

“…Some other studies have also explored the substitution effect of metallic compounds beyond the scope of basic magnetic interactions. The substitution TbPt effect may produce modifications on the conduction band, affecting its electric and transport properties, and also magnetic ground state [10,11].…”

Section: Introductionmentioning

confidence: 99%

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Phase transition of intermetallic TbPt at high temperature and high pressure

Qin

Yang

et al. 2018

J. Phys.: Condens. Matter

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Here we present synchrotron-based x-ray diffraction experiments combined with diamond anvil cell and laser heating techniques on the intermetallic rare earth compound TbPt (Pnma and Z = 4) up to 32.5 GPa and ~1800 K. The lattice parameters of TbPt exhibit continuous compression behavior up to 18.2 GPa without any evidence of phase transformation. Pressure-volume data were fitted to a third-order Birch-Murnaghan equation of state with V = 175.5(2) Å, [Formula: see text] = 110(5) GPa and [Formula: see text] = 3.8(7). TbPt exhibits anisotropic compression with β > β > β and the ratio of axial compressibility is 2.50:1.26:1.00. A new monoclinic phase of TbPt assigned to the Pc or P2/c space group was observed at 32.5 GPa after laser heating at ~1800 K. This new phase is stable at high pressure and presented a quenchable property on decompression to ambient conditions. The pressure-volume relationship is well described by the second-order Birch-Murnaghan equation of state, which yields V = 672(4) Å, [Formula: see text] = 123(6) GPa, which is about ~14% more compressible than the orthorhombic TbPt. Our results provide more information on the structure and elastic property view, and thus a better understanding of the physical properties related to magnetic structure in some intermetallic rare earth alloys.

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Section: Discussionmentioning

confidence: 99%