Distinct order of Gd 4f and Fe 3d moments coexisting in GdFe4Al8

Details Distinct order of Gd 4f and Fe 3d moments coexisting in GdFe4Al8 Distinct order of Gd 4f and Fe 3d moments coexisting in GdFe4Al8

2005-05-31

arxiv.org/abs/cond-mat/0506007v2

Phys. Rev. B 72, 174407 (2005)

Physics

Condensed Matter

Materials Science

v2: 14 pages, 12 figures; PRB in print

Scientific paper

10.1103/PhysRevB.72.174407

Single crystals of flux-grown tetragonal GdFe4Al8 were characterized by thermodynamic, transport, and x-ray resonant magnetic scattering measurements. In addition to antiferromagnetic order at TN ~ 155 K, two low-temperature transitions at T1 ~ 21 K and T2 ~ 27 K were identified. The Fe moments order at TN with an incommensurate propagation vector (tau,tau,0) with tau varying between 0.06 and 0.14 as a function of temperature, and maintain this order over the entire T

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