Magnetization ground state and reversal modes of magnetic nanotori
نویسندگان
چکیده
منابع مشابه
Millimicrosecond Magnetization Reversal in Thin Magnetic Films
From ferromagnetic resonance xperiments and from calculations based on the modified Landau-Lifschitz equation, switching times for the coherent rotation of the magnetization in thin, permalloy-type films have been predicted to lie in the range of 1 mi1limicrosecond.l First measurements by D. 0. Smith et a1,2 utilizing a travellingwave oscilloscope with a response time of 2 mpec, indicated swi...
متن کاملMagnetization reversal and nanoscopic magnetic-phase separation in La1−xSrxCoO3
The doped perovskite cobaltite La1−xSrxCoO3 LSCO has been advanced as a model system for studying intrinsic magnetic phase separation. We have employed a first-order reversal curve FORC method to probe the amount of irreversible switching in bulk polycrystalline LSCO as a function of Sr doping, field cooling procedure, and temperature. The value of the FORC distribution is used as a measure of ...
متن کاملMagnetic field dependence of magnetization reversal behavior in CoÕPt multilayers
Magnetic field dependence of magnetization reversal in Co/Pt multilayers has been quantitatively investigated. Serial samples of Co/Pt multilayers have been prepared by dc magnetron sputtering under various Ar pressures. Magnetization reversal was monitored by magnetization viscosity measurement and direct domain observation using a magneto-optical microscope system. The wall-motion speed V and...
متن کاملMagnetic reversal of ultra-thin films with planar magnetization
Classical spin simulations are used to study magnetic reversal in ultra-thin (16 monolayers) films with planar magnetization and surface roughness typical of epitaxially grown samples. Reduced site symmetry at surface steps leads to strong, local anisotropies that both nucleate reversal and pin domain wall motion. The results we obtain from realistic models with periodic roughness are interpret...
متن کاملMagnetic ground state of FeSe
Elucidating the nature of the magnetism of a high-temperature superconductor is crucial for establishing its pairing mechanism. The parent compounds of the cuprate and iron-pnictide superconductors exhibit Néel and stripe magnetic order, respectively. However, FeSe, the structurally simplest iron-based superconductor, shows nematic order (Ts=90 K), but not magnetic order in the parent phase, an...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of Applied Physics
سال: 2016
ISSN: 0021-8979,1089-7550
DOI: 10.1063/1.4958740