Low-energy spin-wave excitations in amplitude-modulated magnetic structure of PrNi2Si2
نویسندگان
چکیده
منابع مشابه
Low-energy spin-wave excitations in amplitude- modulated magnetic structure of PrNi2Si2
Inelastic neutron scattering (INS) experiments and random phase approximation calculations have been used to investigate the low–energy spin–wave excitations in PrNi2Si2. The modulated magnitude of the ordered magnetic moments of Pr ions implies that the associate, longitudinally polarized magnetic excitations are more intense and dispersive than the usual transverse spin waves. Within the rand...
متن کاملLow - energy spin excitations in the molecular magnetic cluster
– We report an Inelastic Neutron Scattering (INS) study of the fully deuterated molecular compound K6[V IV 15 As6O42]·9D2O (V15). Due to geometrical frustration, the essential physics at low temperatures of the V15 cluster containing 15 coupled V 4+ (S=1/2) is determined by three weakly coupled spin-1/2 on a triangle. The INS spectra at low-energy allow us to directly determine the effective ex...
متن کاملNonlinear spin-wave excitations at low magnetic bias fields
Nonlinear magnetization dynamics is essential for the operation of numerous spintronic devices ranging from magnetic memory to spin torque microwave generators. Examples are microwave-assisted switching of magnetic structures and the generation of spin currents at low bias fields by high-amplitude ferromagnetic resonance. Here we use X-ray magnetic circular dichroism to determine the number den...
متن کاملMagnetic field and temperature dependence of the amplitude-modulated magnetic structure of PrNi2Si2 determined by single-crystal neutron diffraction
J. A. Blanco,1 B. Fåk,2 E. Ressouche,2 B. Grenier,2,3 M. Rotter,4 D. Schmitt,5 J. A. Rodríguez-Velamazán,6,7 J. Campo,7 and P. Lejay8 1Departamento de Física, Universidad de Oviedo, E-33007 Oviedo, Spain 2Commissariat à l’Energie Atomique, INAC, SPSMS, 38054 Grenoble, France 3Université Joseph Fourier, Grenoble-I, France 4Department of Physics, Clarendon Laboratory, University of Oxford, Parks ...
متن کاملMagnetic excitations and anomalous spin-wave broadening in multiferroic FeV2O4
We report on the different roles of two orbital-active Fe 2+ at the A site and V 3+ at the B site in the magnetic exci-tations and on the anomalous spin-wave broadening in FeV 2 O 4. FeV 2 O 4 exhibits three structural transitions and successive paramagnetic (PM)–collinear ferrimagnetic (CFI)–noncollinear ferrimagnetic (NCFI)/ferroelectric transitions. The high-temperature tetragonal/PM–orthorh...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of Physics: Conference Series
سال: 2015
ISSN: 1742-6588,1742-6596
DOI: 10.1088/1742-6596/663/1/012010