C. Piqué
University of Oviedo
9 Papers
49 Citations
C. Piqué is an academic researcher from University of Oviedo. The author has contributed to research in topics: Magnetic moment & Neutron diffraction. The author has an hindex of 5, co-authored 9 publications.
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Papers
Interplay between competing exchange interactions and magnetocrystalline anisotropies in Y Fe x Mn 12 − x : The magnetic phase diagram
TL;DR: In this article, the magnetic properties of tetragonal Mn-based compounds have been investigated using low field ac magnetic susceptibility versus temperature, zero-field-cooled and fieldcooled magnetization versus temperature.
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Double magnetic phase transition in ND4Fe(DPO4)2 and NH4Fe(HPO4)2
Belén F. Alfonso,C. Piqué,Camino Trobajo,José R. García,Erik Kampert,Uli Zeitler,J. Rodríguez Fernández,María Teresa Fernández-Díaz,Jesús A. Blanco +8 more
TL;DR: In this article, the authors studied both the crystal and magnetic structures of triclinic compounds and showed that the low symmetry of this structure gives rise to a complex pattern of competing superexchange interactions between the magnetic moments of two types of sites (with different site symmetry).
Decoupled structural and non-collinear magnetic phase transitions in Fe(ND3)2PO4
Belén F. Alfonso,Camino Trobajo,C. Piqué,M. Teresa Fernández-Díaz,Jesús Rodríguez Fernández,Miguel A. Salvadó,Pilar Pertierra,Santiago García-Granda,José R. García,Jesús A. Blanco +9 more
TL;DR: In this article, powder neutron diffraction experiments were used to show that Fe(ND3)2PO4 crystallizes at room temperature in an orthorhombic (Pnma) crystal structure, but that below Tt −226(5) K the crystal progressively adopts a monoclinic structure via a continuous phase transition.
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From dihydrated iron(III) phosphate to monohydrated ammonium–iron(II) phosphate: Solvothermal reaction mediated by acetone–urea mixtures
TL;DR: In this article, a novel solvothermal synthesis of polycrystalline NH 4 FePO 4 ·H 2 O was reported, where the reaction time and the N/P molar ratio in the reagent mixture were taken into account and the existence of structural memory in the dissolution-precipitation processes was discussed.
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Powder neutron diffraction investigation of the crystal and magnetic structures of NH4Fe(HPO4)2 and its deuterated form
Belén F. Alfonso,C. Piqué,Camino Trobajo,José R. García,J. Rodríguez Fernández,María Teresa Fernández-Díaz,Jesús A. Blanco +6 more
- 21 Oct 2011
TL;DR: In this paper, the NH4Fe(HPO4)2 and its deuterated form ND4Fe (DPO42)2 were investigated in detail from powder neutron diffraction data allowing a precise determination of the hydrogen positions and low temperature magnetic structures.
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