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This quantity covers a number of actual elements of a variety of rare-earth fabrics. Magnetic phenomena dominate the contents of the 1st 4 chapters which care for skinny motion pictures and layered buildings, and intermetallic and nonmetallic compounds. the rest chapters take care of coherent emission and digital constitution calculations of lanthanide molecules.

The first bankruptcy covers the cutting-edge of the synthesis and houses of skinny movies of the rare-earth metals and layered superstructures of 2 rare-earth metals. the next bankruptcy is a evaluate of rare-earth-transition steel nanoscale multilayers and describes the new advances in our realizing of magnetic constitution, interfacial magnetism, and starting place of perpendicular magnetic anisotropy of lanthanide-transition-metal nanoscale multilayers. the subsequent bankruptcy bargains with one of many vital sequence of rare-earth intermetallic compounds, these which own the ThNm12-type constitution. The authors of the next bankruptcy evaluate the explicit magnetic and magnetoelastic houses of definite crystals, that are made up our minds via the localized digital magnetic moments of the lanthanide ions within the crystal lattice and their interactions with one another and surrounding ions. The bankruptcy on coherent emission differs from different stories at the topic in that it concentrates at the broader concerns. the following the emphasis is on superradiance, superfluorescence, amplification of spontaneous emission through different encouraged emision than the laser impression and coherent spontaneous emission. the ultimate bankruptcy describes the growth that has been made in digital constitution calculations of lanthanide-containing molecules, in particular within the final 10 years.

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2, the oand x-polarized components o f the scattered beam are sensitive to different combinations o f the spin- and orbital-magnetization densities. 6 sinB/;t Fig. 18. Non-resonant X-ray scattering from Ho. Top: the solid square at 0 = 0 corresponds to the degree of linear polarization of the incident beam. The open circles show the degree of linear polarization measured for the charge scattering and plotted verses wave-vector transfer for the (0,0,2), (0,0,4) and (0,0,6) chemical reflections. The solid line is the degree of linear polarization for the charge scattering.

9), the former is suppressed and the latter is reflected. In this way, the intensities of the linearly a- and Jr-polarized components of the scattered beam may be measured independently. (For detailed discussions of the operation of the polarization analyser see Gibbs et al. (1991)). E McMORROW et al. Ho(oo~) * FILTER IN o FILTER OUT o Oo o 400 400 o "o o=. 2400 2 (UNITS OF C*) Fig. 10. X-ray scattering data from Ho. Open circles: scan of the Ho(004)+ magnetic (% = ~vc*)and (T~= 2c*) satellites taken at 17 K.

12123 I/2 /. . . % . -- m - - - •=x . . 1 I t I0 20 t 50 2/19 2/23. I I 40 50 TEMPERATURE 1 60 I 70 I 80 90 (K) Fig. 25. Combined X - r a y (solid circles) and neutron (open circles) scattering results from Er for the fundamental wave vector r m and for the additional scattering from lattice modulations at 2Tm, r S and 2T m - Ts. The peak observed at Tm in the c-axis modulated phase above 52 K is the principle magnetic satellite o f the (110) reflection, obtained b y neutron scattering.

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