By Kazuko Motizuki, Hideaki Ido, Tadaei Itoh, Masato Morifuji
This ebook provides the result of investigations into the magnetic houses of 3d-transition steel compounds. particularly, it bargains with 3d-metal pnictides (i.e., compounds containing phosphorus, arsenic, antimony or bismuth). half I stories the experimental info including phenomenological discussions from primary and alertness view issues. half II addresses how a few of fascinating behaviors pointed out partially i will be able to be defined at the foundation of an itinerant electron photo. Band buildings bought by way of first-principle calculations are utilized to introduce theories to calculate a number of homes comparable to susceptibility, magnetic ordering, and magnetic transitions, etc.
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Extra info for Electronic Structure and Magnetism of 3d-Transition Metal Pnictides
The relation between a-axis and magnetic moment shown in Figs. 11 seems to suggest a way of approach to understand the magnetism of 3d-pnictides. There is relevant discussion in Sect. 2 of Part II. Resistivity of CrSb above TN shows temperature dependence like a semiconductor ; however, it is unsure whether such behavior of resistivity arises from an intrinsic property of CrSb or slight crystal decomposition at high temperatures such as Sb-precipitation as seen in MnSb (Sect. 4 and Fig. 6).
27 whether the order of transition at TC changes by pressure from the second to the first. However, temperature dependence of magnetization under 8 and 10 GPa shown in Fig. 2 GPa shown in Fig. 27 is of the first order. It is possible to clarify whether the transition is of the first order or of the second by measuring the hysteresis Δ or temperature dependence of spontaneous magnetization under pressure. 2 K in Fig. 28. 052P2, where P means the pressure in the unit of GPa. 3 . 2 K is explained qualitatively by the energy band calculation for changing lattice parameters .
19 . 1 is small in the temperature range T < TN and the transition field of the metamagnetic transition shown in Fig. 16 shows rapid increase. At T = 231 K, metamagnetic transition does not occur even in 400 kOe. Results shown in Fig. 16 suggests that no metamagnetic transition occurs for T ≤ TN . These facts seems to be important hints to understand the field-induced metamagnetic transition, which occurs only above TN . The phenomenological theory of metamagnetism of MnAs just above TC shown in Sect.