Published in Physics of the Solid State
AbstractThe specific heat and the magnetocaloric effect of intermetallic LaFe11.2 – xMnxCo0.7Si1.1 (x = 0, 0.1, 0.2, 0.3) compounds have been measured in the temperature range 80–300 K in magnetic fields up to 8 T. The magnetocaloric effect (MCE) is estimated by two methods: the direct method in cyclic magnetic fields and also indirect method from ...
Published in Physics of the Solid State
AbstractA numerical Monte Carlo study has been performed on the influence of various initial states, easy-axis-type magnetic anisotropy, and structural defects on a nonequilibrium critical behavior of the classical three-dimensional Heisenberg model. An analysis of the time dependence of the magnetization and the autocorrelation function for the is...
Published in Physics of the Solid State
AbstractThe direct measurements of the magnetocaloric effect ΔTad in the Heusler alloy Ni49.3Mn40.4In10.3 have been carried out in cyclic magnetic fields with amplitudes to 8 T. The maximum values of the magnetocaloric effect are 5.29 K in the martensite–austenite transition region and 3.39 K in the region of the magnetic phase transition in the au...
Published in Physics of the Solid State
AbstractThe magnetic and magnetocaloric properties of Heusler Ni2 + xMn1 – xGa alloys (x = 0.16, 0.18, and 0.3) have been studied using a model based on the Malygin theory of smeared phase transitions, the Bean–Rodbell theory of first-order phase transitions, and the mean-field theory. The temperature dependences of strain, magnetization, and isoth...
Published in Physics of the Solid State
AbstractInfluence of hydrogenation on the microstructural parameters, surface topology, and temperatures of magnetic phase transitions in Dy2Fe10Al7 was studied. Thermomagnetic properties in the obtained hydride Dy2Fe10Al7H3.2 were also investigated. Hydrogenation was found not to change the Curie point of the compound Dy2Fe10Al7, but at the same t...
Published in Physics of the Solid State
AbstractThe interaction of an electromagnetic radiation with electric dipole active spin modes in a multisublattice antiferrodielectric is shown to possibly lead to anomalous (negative) spatial shift of a light beam when an electromagnetic wave is incident on the interface with an isotropic dielectric medium.
Published in Physics of the Solid State
AbstractThe Monte Carlo method is used to study phase transitions in disordered two-dimensional Potts models in which disorder is realized as nonmagnetic impurities. The temperature dependences of the thermodynamic parameters have been calculated for specific heat C, susceptibility χ, and fourth-order Binder cumulants in the dependence on spin conc...
Published in Physics of the Solid State
AbstractAmorphous metallic foams are prospective materials due to unique combination of their mechanical and energy-absorption properties. In the present work, atomistic dynamics simulations are performed under isobaric conditions with the pressure p = 1.0 atm in order to study how cooling with extremely high rates (5 × 1013–5 × 1014 K/s) affects t...
Published in Physics of the Solid State
AbstractThe paper discusses the features of supercooled water thin film of width d = 3.97 nm contained by the perfect graphene layers and crystallizing under external stationary electric field. It was found that the electric field applied perpendicular to graphene layers impedes structural ordering, while the electric field applied in lateral direc...
Published in Physics of the Solid State
AbstractThe thermal diffusivity and thermal conductivity of multiferroics Bi1 – xHoxFeO3 (x = 0–0.20) have been studied in the high-temperature region of 300–1200 K. It is established that alloying with the rare-earth element (holmium) strongly increases the specific heat in a wide temperature range T > 300 K and significantly changes temperature a...
