Results 271 to 280 of about 798,637 (316)

Magnetic Structure Transitions

Physical Review, 1953
The problem of magnetic phase transitions between ferromagnetism and antiferromagnetism, or between two different kinds of antiferromagnetic arrangement, is treated by a molecular field approach. It is shown that such transitions may occur if the molecular field coefficients vary with temperature; if they do occur, they will be of first order.
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The magnetic structure of

Journal of Physics: Condensed Matter, 1998
We have determined the magnetic structure of the Fe sublattice in by high-resolution neutron powder diffraction. The crystal space group is Cmcm and the magnetic space group is . The Fe modes are and at the 8d, 8e and 8g sites, respectively. The easy direction of magnetization is [100] and the propagation vector is [010].
J M Cadogan, D H Ryan, I P Swainson, O Moze   +3 more
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Anisotropic magnetic properties and magnetic structure of YbPdSi

Journal of Physics: Condensed Matter, 2016
YbPdSi with orthorhombic crystal structure (space group Pmmn) exhibits a magnetic transition at [Formula: see text] K, below which a ferromagnetic moment develops with an enhanced electronic specific-heat coefficient [Formula: see text] mJ K(-2) mol(-1).
Naohito, Tsujii, Lukas, Keller, Andreas, Dönni, Hideaki, Kitazawa   +3 more
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Structural, electronic, and magnetic properties of Co: Evidence for magnetism-stabilizing structure

Physical Review B, 1986
Total-energy local-spin-density energy-band calculations are employed to study the different structural phases (hcp, fcc, and bcc) and magnetic states of Co metal as a function of volume. In the paramagnetic state, the fcc phase is lowest in energy with magnetic order stabilizing the hcp phase as the (observed) ground state.
, Min, , Oguchi, , Freeman
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Crystal and magnetic structure of the permanent magnet material Lu2Fe14C

Journal of the Less Common Metals, 1990
Abstract R2Fe14C (R = rare earth metal) compounds are considered as new permanent magnet materials of technical interest. Investigations of the compound Tb2Fe14C by means of X-ray and neutron diffraction as well as by metallographic techniques were carried out.
Ch. Hellwig, K. Girgis, P. Fischer, K.H.J. Buschow, J. Schefer   +4 more
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Periodic structure of spicular magnetic clusters in a magnetic liquid

Journal of Colloid and Interface Science, 2005
The behavior of clusters formed by magnetic particles of magnetic liquid placed into a cylindrical capillary tube in magnetic field is described. Spicular clusters are formed from the sediment at the application of a magnetic field. They arrange themselves along the capillary repeating the direction of external magnetic field.
B N, Moldovan, O A, Antonyuk, M V, Petrychuk, V F, Kovalenko   +3 more
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Magnetic Structures

1991
Abstract The mean-field theory introduced in the previous section is used in this chapter as a basis for examining some of the magnetic structures assumed by the rare earth metals. The theory is presented at length in the first section.
Jens Jensen, Allan R Mackintosh
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Internal structure of magnetic endosomes

The European Physical Journal E, 2007
The internal structure of biological vesicles filled with magnetic nanoparticles is investigated using the following complementary analyses: electronic transmission microscopy, dynamic probing by magneto-optical birefringence and structural probing by Small Angle Neutron Scattering (SANS).
C, Rivière, C, Wilhelm, F, Cousin, V, Dupuis, F, Gazeau, R, Perzynski   +5 more
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Magnetic properties and magnetic structure of CeAl2Ga2

Journal of Magnetism and Magnetic Materials, 1988
Abstract Magnetic properties of the tetragonal compound CeAl 2 Ga 2 were investigated by means of electrical resistivity, specific heat, magnetization and neutron diffraction measurements on polycrystalline samples. Cerium behaves as a normal Ce 3+ ion, with indication of a very weak Kondo effect.
D. Gignoux, D. Schmitt, M. Zerguine, E. Bauer, N. Pillmayr, J.Y. Henry, V.N. Nguyen, J. Rossat-Mignod   +7 more
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Magnetic properties and magnetic structure of DyTiGe

Physica B: Condensed Matter, 2001
Abstract We have studied the crystal structure, magnetic structure and magnetic properties of the tetragonal compound DyTiGe by means of neutron-diffraction and magnetic measurements. The neutron diffraction measurements were made in the range 1.7–240 K and showed that DyTiGe has an antiferromagnetic structure with a propagation vector q=(0, 0, 0.5).
K Prokeš, O Tegus, E Brück, J.C.P Klaasse, F.R de Boer, K.H.J Buschow   +5 more
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