منابع مشابه
Magnetic Properties of Y3−2xCa2xFe5−xVxO12 Garnets
A comprehensive study of the magnetic properties of Y3−2xCa2xFe5−xVxO12 (0 ≤ x ≤ 1) has been performed. The garnet ferrites samples were prepared by the ceramic technique, and X-ray diffraction analysis indicates the formation of single cubic phase. Vibrating sample magnetometry (VSM) and a superconducting quantum-interference device (SQUID) were used to measure the magnetic properties, especia...
متن کاملSilicon ring isolators with bonded nonreciprocal magneto-optic garnets.
A ring isolator is demonstrated for the first time by directly bonding a cerium-substituted yttrium iron garnet (Ce:YIG) onto a silicon ring resonator using oxygen plasma enhanced bonding. The silicon waveguide is 600 nm wide and 295 nm thick with 500-nm-thick Ce:YIG on the top to have reasonable nonreciprocal effect and low optical loss. With a radial magnetic field applied to the ring isolato...
متن کاملComparative Compressibilities of Majorite- Type Garnets
Relative compressibilities of five silicate garnets were determined by single-crystal x-ray diffraction on crystals grouped in the same high-pressure mount. The specimens include a natural pyrope [(Mgz.84Feo.IOCao,o6) AI2Si30d, and four synthetic specimens with octahedrally-coordinated silicon: majorite [Mg3(MgSi)Si30 d, calcium-bearing majorite [(Cao.49Mg2.sl)(MgSi)Si30d, sodium majorite [(NaI...
متن کاملGarnets from the Camafuca-Camazambo kimberlite (Angola).
This work presents a geochemical study of a set of garnets, selected by their colors, from the Camafuca-Camazambo kimberlite, located on northeast Angola. Mantle-derived garnets were classified according to the scheme proposed by Grütter et al. (2004) and belong to the G1, G4, G9 and G10 groups. Both sub-calcic (G10) and Ca-saturated (G9) garnets, typical, respectively, of harzburgites and lher...
متن کاملFossils explained 54
Plesiosaurs may be divided into two general morphotypes, based on body shape. ‘Pliosauromorphs’ have a large head and a short neck—traditionally thought to be pliosaurs, while ‘plesiosauromorphs’ have a small head and long neck, and have been seen as plesiosauroids. This is in fact an oversimplification, and today, detailed analysis and investigations of plesiosaur anatomy suggest that these mo...
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ژورنال
عنوان ژورنال: Geological Magazine
سال: 1901
ISSN: 0016-7568,1469-5081
DOI: 10.1017/s0016756800180495