نتایج جستجو برای: vtterium iron garnet
تعداد نتایج: 145874 فیلتر نتایج به سال:
A guided wave optical isolator using a four layered leaky yttrium iron garnet (YIG) waveguide with a YIG guiding layer is proposed and analyzed through a transfer matrix formulation. The dependence of isolation characteristics on different waveguide parameters are discussed. It is shown that for four layered structures an isolation ratio of about 24 dB can be achieved with YIG films having larg...
A mathematical approach is presented for the calculation of the major and trace element fractionation that is caused by growth of zoned garnet in metamorphic rocks. This approach is based on textural and compositional parameters directly obtained from natural examples. It takes into account the mode and composition of all unzoned minerals, as well as the mode, crystal size distribution and zona...
In this paper present that it is possible to control the characteristics of spin waves (SW) in a system lateral magnetic waveguides made iron yttrium garnet (YIG) by changing antiferromagnetic iron-rhodium (FeRh) layer located above these waveguides. particular shown geometric parameters and magnetization FeRh one can amplitude phase SW propagating microwaveguides. The modes under which dips ap...
The concentration of yttrium in pelitic garnets as a function of metamorphic grade has been examined in relation to the distribution of xenotime (YPO4) in samples from New England and British Columbia. Samples with xenotime present only as inclusions in garnet generally possess high-Y cores and concentrations that drop off discontinuously along zoning shoulders of variable width to low-Y outboa...
We study the steering of visible light using a combination magneto-optical effects and reconfigurability magnetic domains in yttrium-iron garnet films. The spontaneously formed stripe are used as field-controlled optical grating, allowing for active spatiotemporal control light. discuss basic ideas behind approach provide quantitative description field dependence obtained patterns. Finally, we ...
The study area is located in North-East of Lut block, and in Basiran Geological Quadrangle Map (1:100000).Tertiary intrusive-subvolcanic rocks intruded Paleocene limestone and formed skarn and Iron mineralization. Petographic studies show that rocks are Hbl-diorite porphyry, Hbl-qtz- diorite porphyry, Px- diorite porphyry, Hbl-px- diorite porphyry, Hbl-diorite and Bt-diorite. These rocks are s...
in the asemi-gawa area of intermediate high-pressure and low-temperature sanbagawa metamorphic belt in central shikoku, japan, piemontite-quartz schists are common in which cation exchange between piemontite and garnet has been studied. piemontite in contact with garnet usually contains two zones in which core is enriched in mn3+ and surrounded by a rim rich in fe3+. garnet is ca-fe-bearing spe...
Magnetic isotropic and Dzyaloshinskii-Moriya interactions in yttrium iron garnet have been obtained by ab initio fully relativistic calculations. The calculated coupling constants are agreement with available experimental data. Using linear spin-wave theory, we able to reproduce the magnon spectrum including gap stiffness. way calculate exchange using Korringa-Kohn-Rostoker formalism for large ...
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