The texture ordering in L10-FePt–Ag nanocomposites
نویسندگان
چکیده
منابع مشابه
Combined reactions associated with L10 ordering
Recently, self-organized magnetic arrays (SOMAs) have received a great deal of attention because of the potential of achieving magnetic data storage densities greater than 1Tbit/in. SOMA involves the chemical preparation of selfassembled arrays of alloyed nanoparticles (such as FePt), which can be subsequently annealed to form an L10 high magnetocrystalline anisotropy chemically ordered phase. ...
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FePt nanoparticles have great application potential in advanced magnetic materials such as ultrahigh-density recording media and high-performance permanent magnets. The key for applications is the very high uniaxial magnetocrystalline anisotropy of the L10-FePt phase, which is based on crystalline ordering of the face-centered tetragonal (fct) structure, described by the chemical-ordering param...
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The ordering kinetics in free and supported L1(0) nanoparticles was studied by means of lattice-based kinetic Monte-Carlo simulations. Starting from a fully disordered particle of Wulff shape, the simulations show that the nucleation of ordered domains is starting quickly on various (100) facets but is retarded in the particle volume due to the lack of vacancies compared with a thin film geomet...
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We present the results on highly anisotropic oriented face-centered-tetragonal ordered equiatomic FePt thin films embedded in a C matrix prepared by cosputtering technique on MgO ~100! substrates at 400 °C. We have found that doping of C in FePt alloy films is an effective and appropriate way to control the L10 ordering and growth of grain size down to 4 nm. Room-temperature magnetic measuremen...
متن کاملField ordering and energy density in texture cosmology.
We use numerical simulations of the time evolution of global textures to investigate the relationship between ordering dynamics and energy density in an expanding universe. Events in which individual textures become fully wound are rare. The energy density is dominated by the more numerous partially wound con gurations, with median topological charge ' 0:44. This veri es the recent suppositio...
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ژورنال
عنوان ژورنال: Journal of Theoretical and Applied Physics
سال: 2019
ISSN: 2251-7227,2251-7235
DOI: 10.1007/s40094-019-00359-z