2004
DOI: 10.1103/physrevb.69.184403
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Nonlinear excitations inCsNiF3in magnetic fields perpendicular to the easy plane

Abstract: Experimental and numerical studies of the magnetic field dependence of the specific heat and magnetization of single crystals of CsNiF3 have been performed at 2.4 K, 2.9 K, and 4.2 K in magnetic fields up to 9 T oriented perpendicular to the easy plane. The experimental results confirm the presence of the theoretically predicted double peak structure in the specific heat arising from the formation of nonlinear spin modes. The demagnetizing effects are found to be negligible, and the overall agreement between t… Show more

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Cited by 4 publications
(3 citation statements)
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“…It was pointed out that at higher external magnetic fields ferromagnetic ordering of Ni ions can occur as well [11,18]. Various properties of the CsNiF 3 compound have been studied experimentally [16,17,[19][20][21][22][23][24]. These investigations were performed as a function of temperature as well as external magnetic field.…”
Section: Introductionmentioning
confidence: 99%
“…It was pointed out that at higher external magnetic fields ferromagnetic ordering of Ni ions can occur as well [11,18]. Various properties of the CsNiF 3 compound have been studied experimentally [16,17,[19][20][21][22][23][24]. These investigations were performed as a function of temperature as well as external magnetic field.…”
Section: Introductionmentioning
confidence: 99%
“…Within this plane the onset of antiferromagnetism appears. Many experimental studies have investigated (503) different magnetic properties, for review see [3,4], ultrasonic study of magnetic phases [5], spin waves [6], magnon dispersions [7], excitation spectrum in the magnetic field within [8] and perpendicular [9] to the easy plane and etc. Such 3D insulating systems occurring at very low temperatures could be very well studied using state-of-art ab initio methods.…”
Section: Introductionmentioning
confidence: 99%
“…For more than three decades the magnetic compound CsNiF 3 has attracted an intense attention of investigators [1]. This is mainly due to a relative simplicity of the Heisenberg model used to describe this magnet above the temperature 2.7 K, where it exhibits essentially 1D behavior, and to a possible existence of nonlinear excitations of spins -integrable (solitonic) or non-integrable [2,3], depending on whether the externally applied magnetic field is directed parallel or normal to the anisotropic axis.…”
Section: Introductionmentioning
confidence: 99%