Journal ArticleDOI
Resistivity of RMn12−xFex alloys
TLDR
The electrical resistivity of RMn12−xFex (R=Er,Ho) polycrystalline system with x=0, 4, 5, and 6 was measured over the temperature range of 4 to 300 K as mentioned in this paper.Abstract:
The electrical resistivity of RMn12−xFex (R=Er,Ho) polycrystalline system with x=0, 4, 5, and 6 was measured over the temperature range of 4 to 300 K. The resistivity increases sharply near the Neel temperature TN for x=4, 5, and 6 which, according to existing theories, can be ascribed to the formation of superzone gaps. Then, the resistivity increase should be proportional to the staggered magnetization m′ below TN, whereas we find experimentally that it is quadratic in m′. Thermal smearing of the gaps can lead to such a dependence. There is no evidence for superzone effects in x=0 compounds. A combination of spin disorder, phonon, and impurity scattering gives a good account for the experimental data.read more
Citations
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Spin disorder scattering in magnetic metallic alloys.
TL;DR: It is shown that electron scattering by substitutional spin disorder can account for such behavior of itinerant magnets and leads to a relaxation rate that is proportional to x(12-x)m(2), where m is the staggered magnetization.
Journal ArticleDOI
Effects of antiferro-ferromagnetic phase coexistence and spin fluctuations on the magnetic and related properties of NdCuSi
TL;DR: In this article, a low-field magnetoresistance (MR) of ∼ − 32% at 20 kOe below TN (3.1 K) was found for polycrystalline NdCuSi, which is attributed to the competing exchange interactions and crystal field effect.
Journal ArticleDOI
Interplay between competing exchange interactions and magnetocrystalline anisotropies in Y Fe x Mn 12 − x : The magnetic phase diagram
TL;DR: In this article, the magnetic properties of tetragonal Mn-based compounds have been investigated using low field ac magnetic susceptibility versus temperature, zero-field-cooled and fieldcooled magnetization versus temperature.
Journal ArticleDOI
Magnetic, electronic transport and magneto-transport behaviors of CoxFe1−xMnP compounds
N. K. Sun,Y B Li,Li Duoli,Qiang Zhang,Juan Du,Ding-Bang Xiong,Wanwan Zhang,Si Ma,Jinlai Liu,Zhidong Zhang +9 more
TL;DR: In this article, the properties of Co x Fe 1− x MnP (0.40, 0.40, 0.65, 0,65 and 0.75) compounds have been investigated systematically.
Journal ArticleDOI
Atomistic simulation on site preference and lattice vibrations of NdMn8T4 (T = Fe, Co, Ni)
TL;DR: In this paper, the structural and vibrational properties of NdMn8T4 compounds (T = Fe, Co, Ni), using the inverted pair potentials, were simulated.
References
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Journal ArticleDOI
Anomalies de résistivité dans certains métaux magníques
P. G. de Gennes,J. Friedel +1 more
TL;DR: In this article, the authors describe a couplage d'echange entre electrons de conduction and porteurs de magnetisme, i.e., a coupling between electrons and magnetic fields.
Journal ArticleDOI
Electrical Resistance of Ferromagnetic Metals
TL;DR: In this paper, the anomalous electrical resistance in ferromagnetic metals was investigated from the perspective of s-d interaction and it was shown that this interaction is not periodic in finite temperatures, and that the exchange energy between conduction and inner shell electrons depends on the relative direction of the spins of the electrons.
Journal ArticleDOI
Theory of the Resistance of the Rare Earth Metals
R. J. Elliott,F A Wedgwood +1 more
TL;DR: In this article, a simple theory of the spin disorder in rare earth metals is given on the basis of two mechanisms: the spiral spin structures found in these materials cause an exchange field at the conduction electrons with a lower symmetry than that of the lattice.