Showing papers in "Journal of Magnetism and Magnetic Materials in 1983"

TL;DR: In this article, the magneto-optical Kerr rotation in more than 200 metallic systems comprising alloys as well as intermetallic compounds of 3D transition metals was studied and the saturation moment at 4.2 K was determined.

TL;DR: In this paper, the temperature dependence of the magnetic hyperfine field of microcrystalline goethite has been studied in detail and the results have been compared to the behaviour of well-crystallized Goethite.

TL;DR: In this paper, a low-temperature approximation for the reduction in the magnetic hyperfine splitting of the Mossbauer spectrum of a microcrystal was derived for arbitrary magnetic energy, and explicit expressions for particles with special types of magnetic anisotropy and for particles exposed to external magnetic fields.

TL;DR: In this paper, the magnetic properties of the cubic NaZn 13 type pseudobinary compounds La(T x Si 1-x ) 13 were studied for T = Fe, Co and Ni in the temperature range 4.2-300 K.

TL;DR: In this article, the use of small particles instead of thin films has some advantages for the study of the magnetic properties of surfaces, such as surface anisotropy and interfacial interactions.

TL;DR: In this article, the magnetic ordr of UPt is confirmed, whereas in UPt2 and UPt5 no magnetic order is observed, and an antiferromagnetic type of order, suggested for UPt3 by a peak in the susceptibility near 19 K and by the magnetic transition in the magnetization curve at 4.2 K near 19 T is not supported by the specific heat data in which no anomaly near 19K was found.

TL;DR: In this paper, the applicability of the Gaussian and lognormal probability functions to describe the distribution of particle sizes found in ferrofluids was examined and it was concluded that the form of the distribution may be associated with the technique of particle preparation.

TL;DR: In this article, a local interaction model of the systematic variations with concentration of the atomic moments and hyperfine fields in Fe3Si and its 3D transition metal ternary alloys is presented.

TL;DR: In this article, the behavior of a ferrite-elastomer composite is studied under the combined influence of changing elastic stresses and magnetic fields, and the results obtained are presented in a series of graphs.

TL;DR: In this article, an experiment was performed to examine the influence of a homogeneous vertical magnetic field on the Benard convection in a ferrofluid layer and the critical temperature difference was determined by measuring the effective thermal conductivity.

TL;DR: In this paper, an X-ray and polarized neutron powder diffraction study of finely divided (diameter ≈ 100 A) CoFe 2 O 4 particles coated with oleic acid and naked was performed.

TL;DR: In this paper, the unusual magnetic properties of Ce-monopnictides are reviewed and a triple-k type I structure was found to order with a triplek type II structure.

TL;DR: The quantized Hall effect as mentioned in this paper is a phenomenon visible in Hall effect measurements on a two-dimensional electron gas in strong magnetic fields and low temperatures, and it has been shown that the Hall resistance R H is quantized corresponding to R H = h / e 2 (h = Plancks constant, e = elementary charge, i = integer).

TL;DR: The paper puts the described applications in perspective by classifying the general range of applications for magnetic liquids by describing applications of ferromagnetic liquids referring to less well publicised devices.

TL;DR: In this article, the magnetic and electric duality of magnetizable and polarizable liquids is demonstrated for the labyrinthine instability that occurs in thin layers subjected to initially uniform fields, and a theory is developed for the spacing of fully developed labyrinth patterns in horizontal cells.

TL;DR: In this paper, the formation and magnetic properties of Heusler compounds of the general formula X 2 YSn were studied, where X represents a 3D transition metal or Cu and where Y represents a second 3d transition metal of group IV A, VA and VI A of the periodic table.

TL;DR: In this paper, the temperature dependence of the resistivity is analyzed with the aid of the known facts on the Kondo effect and is found to explain qualitatively that of CeAl 3.

TL;DR: In this paper, the magnetic properties of different types of silicides have been studied in the temperature range 1.5 K T T > 300 K. All the compounds (RE, La, Ce, Pr, Nd, Sm, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu) were found to be isotypic and to crystallize with the structure type of ThCr 2 Si 2 (ordered derivative of the BaAl 4 -type).

TL;DR: A brief survey of the evolution of the theory of itinerant electron magnetism, in particular at finite temperatures, with special emphasis on the latest developments in spin fluctuations, is given in this paper.

TL;DR: In this article, the relaxation time of the magnetisation of fine ferromagnetic particles is calculated in its dependence on short-range and long-range interaction effects using a Landau-Ginzburg formalism.

TL;DR: In this paper, the magnetism of amorphous alloys of iron and cobalt with early transition metals was reviewed and parameter-free, self-consistent band calculations for related ordered compounds were presented to elucidate the mechanism of moment formation and magnetic weakness.

TL;DR: In this article, a new theory is presented to describe the time-dependent decay of the isothermal remanent magnetization of a fine-particle ferromagnetic system, based on the summation of relaxation times over a very narrow range of the particle size distribution.

TL;DR: In this article, the magnetic spin alignment of a linear transverse wave mode below the Neel temperature 19 K was observed for polycrystalline HoRu 2 Si 2, HoRh 2 Si2, TbRh 2Si 2, TbIr 2Si2, and TbI 2 Si 3 was performed in the temperature range between 42 and 300 K.

TL;DR: In this paper, the authors suggest that YbB 12 is a valence fluctuating system accompanied with the formation of an energy gap, which is a characteristic of ytterbium compounds.

TL;DR: In this paper, the De Haas-van Alphen effects on LaSb and CeSb were measured, and the calculated energy band structure in La Sb agreed with the experimental results.

TL;DR: The maximal attainable magnetization in a magnetic fluid is limited by the magnetization of the core material, the requirements for stability towards aggregation, and the space needed for the carrier fluid as discussed by the authors.

TL;DR: In this article, the magnetovolume effects in rare earth-transition metal intermetallic compounds RM 2 are reviewed and interpreted in terms of itinerant electron ferromagnetism taking into account spin fluctuations.

TL;DR: In this paper, the interaction of magnetic (Tc) an first-order distortion-type structural (TD) transitions in the CoxNi1−xMnGe system was investigated using an ac susceptibility method under hydrostatic pressure up to 1.3 GPa.

TL;DR: In this paper, the surface hyperfine field rapidly decreased with increase of temperature but the Morin transition took place at the same transition temperature as the bulk crystal and the surface was very thinly coated with 57 Fe.

TL;DR: In this paper, the magnetostriction constant of the amorphous ribbon whose nominal composition is Co 58 Fe 5 Ni 10 B 16 Si 11 changes not only its absolute value but also its sign.