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Magnetic structure of Gd5Si2Ge2 and Gd5Si2Ge1.9M0.1 (M = Ga, Cu)

AuthorsPalacios, Elias; Rodríguez-Velamazán, J. A.; Wang, GaoFeng; Burriel, Ramón
Issue Date2010
PublisherInstitute of Physics Publishing
CitationJournal of Physics Condensed Matter 22(44): 446003 (2010)
AbstractPowder x-ray diffraction patterns of the doped compounds Gd 5Si2Ge1.9M0.1 (M = Ga, Cu) show the same crystal structure, orthorhombic Gd5Si4-type, in the ferromagnetic and paramagnetic phases. This is different from Gd 5Si2Ge2, whose paramagnetic phase is monoclinic. The magnetic structure at low temperature, solved from diffraction experiments with hot neutrons, is the same in all the three compounds, collinear ferromagnetic with moments along the crystal b-axis, or Fy F By according to Bertaut's notation. These results, combined with those of heat capacity and magnetocaloric effect, indicate, similarly to Gd 5Si4, a second-order, purely magnetic, transition in the doped compounds explaining the absence of hysteresis. © 2010 IOP Publishing Ltd.
DescriptionEl pdf del artículo es la versión post-print.-- et al.
Identifiersdoi: 10.1088/0953-8984/22/44/446003
issn: 0953-8984
e-issn: 1361-648X
Appears in Collections:(ICMA) Artículos
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