2015
DOI: 10.1103/physrevb.92.054402
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Magnetic model in multiferroicNdFe3(BO3)4investigated by inelastic neutron scattering

Abstract: We performed inelastic neutron scattering measurements on single crystals of NdFe 3 ( 11 BO 3 ) 4 to explore the magnetic excitations, to establish the underlying Hamiltonian, and to reveal the detailed nature of hybridization between the 4f and 3d magnetism. The observed spectra exhibiting a couple of key features, i.e., anticrossing of Nd and Fe excitations and anisotropy gap at the antiferromagnetic zone center, are explained by the magnetic model including spin interaction in the framework of weakly couple… Show more

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Cited by 24 publications
(8 citation statements)
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“…a modification of the spin wave spectra. Actually, the exchange J 6 should, in principle, hybridize the crystal field and spin wave responses, as for instance proposed in other materials like ErMnO 3 6 or NdFe 3 (BO 3 ) 4 3 . This hybridization may be the physical origin of the peculiar spectrum observed in Fig.…”
Section: Resultsmentioning
confidence: 97%
See 1 more Smart Citation
“…a modification of the spin wave spectra. Actually, the exchange J 6 should, in principle, hybridize the crystal field and spin wave responses, as for instance proposed in other materials like ErMnO 3 6 or NdFe 3 (BO 3 ) 4 3 . This hybridization may be the physical origin of the peculiar spectrum observed in Fig.…”
Section: Resultsmentioning
confidence: 97%
“…Particularly, the issue of determining the actual role of spin in the emergence of ferroelectric state has been a very crucial topic of research in recent years. Different mechanisms have been proposed, like the inverse Dzyaloshinskii - Moriya ( DM ) interaction model 2 , the exchange - striction mechanism 1 and the spin dependent metal - ligand hybridization model 36 among others, but no universal model could be implemented to the entire family. It remains that the magnetic properties of many of such magnetic ferroelectrics are driven by 4 f rare earths and 3 d transition metal ions.…”
Section: Introductionmentioning
confidence: 99%
“…A few decades ago Yamaguchi proposed and analyzed a model, which took into account all symmetric and antisymmetric exchange interactions within the Fe sublattice as well as interactions between Fe and R sublattices, whereas the interactions and anisotropy within the R sublattice were neglected [38]. The excitation spectrum of this model consists of a number of entangled collective Fe-R spinwave modes, as was shown for many other compounds with magnetic interaction between different sublattices [40][41][42][43][44][45].…”
Section: A Magnetic Hamiltonian Of Ybfeomentioning
confidence: 99%
“…Furthermore, we have successfully investigated spin dynamics in condensed matter with a conventional manner of INS and obtained the following results [11][12][13][14][15].…”
Section: Results From Further Studiesmentioning
confidence: 99%