@conference{10902/34476,
year = {2012},
url = {https://hdl.handle.net/10902/34476},
abstract = {The deuterated form of ammonium iron(III) bis (hydrogenphosphate), ND₄Fe(DPO₄)², was investigated in detail from neutron powder diffraction data with a wavelength λ = 4.724 ˚A. The material undergoes two successive magnetic phase transitions which are associated with the Fe³+ magnetic moments. One at TC = 17.82 ± 0.05 K is attributed to the ferrimagnetic order with the magnetic moments, µF I = 4.19 ± 0.02 µB at 4 K, lying on the crystallographic plane ac. The other transition is found to be at Tt = 3.52 ± 0.05 K due to an
antiferromagnetic arrangement, with an equal moment antiphase structure that is characterized by a long–period propagation vector close to →kAF ≈ (1/16, 0, 1/16) and a magnetic moment for the Fe³+ ions of µAF = 4.41 ± 0.03 µB at 1.5 K. The low symmetry of its triclinic crystal structure and the complex pattern of competing superexchange pathways seem to be responsible for the existence of this double magnetic phase transition.},
organization = {Financial support has been received from Spanish MEC and FEDER Grant No. MAT2008-06542-C04.},
publisher = {Institute of Physics},
publisher = {Journal of Physics: Conference Series, 2012, 340, 012059},
title = {Neutron powder diffraction investigation in ammonium iron(III) bis (hydrogenphosphate)},
author = {Alfonso, B.F. and Piqué, C. and Trobajo, C. and García, J.R. and Kampert, E. and Mirebeau, I. and Rey, N. and Rodríguez Fernández, Jesús and Fernández Díaz, M. T. and Blanco, J.A.},
}