Precessing Ferromagnetic Needle Magnetometer
نویسندگان
چکیده
منابع مشابه
Ferromagnetic Josephson junction with precessing magnetization.
The Josephson current in a diffusive superconductor-ferromagnet-superconductor junction with precessing magnetization is calculated within the quasiclassical theory of superconductivity. When the junction is phase biased, a stationary current (without ac component) can flow through it despite the nonequilibrium condition. A large critical current is predicted due to a dynamically induced long r...
متن کاملRotational properties of ferromagnetic nanoparticles driven by a precessing magnetic field in a viscous fluid.
We study the deterministic and stochastic rotational dynamics of ferromagnetic nanoparticles in a precessing magnetic field. Our approach is based on the system of effective Langevin equations and on the corresponding Fokker-Planck equation. Two key characteristics of the rotational dynamics, namely the average angular frequency of precession of nanoparticles and their average magnetization, ar...
متن کاملNew Magnetometer
We summarize here the main practical results obtained in the Institute of Electronics at the Bulgarian Academy of Sciences under the project: “New alloptical systems and methods for magnetic and electromagnetic field measurement”, financed by EC (contract G6RD-CT-2001-00642). The project Consortium consists of the following partners: Department of Physics, University of Siena, Italy, Project Co...
متن کاملPrecessing sphere Shear-driven parametric instability in a precessing sphere
The present numerical study aims at shedding light on the mechanism underlying the precessional instability in a sphere. Precessional instabilities in the form of parametric resonance due to topographic coupling have been reported in a spheroidal geometry both analytically and numerically. We show that such parametric resonances can also develop in spherical geometry due to the conical shear la...
متن کاملThe Precessing Top
When a symmetric top is set spinning with angular velocity ω c about its own axis, it traces out a circle about a vertical direction with angular velocity ω z , as shown in Fig. 1. In most textbooks [1, 2, 3] the precessional angular velocity ω z is calculated under the assumption that it is much smaller than the spin angular velocity ω c . This makes for a simplification of the calculation by ...
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: Physical Review Letters
سال: 2016
ISSN: 0031-9007,1079-7114
DOI: 10.1103/physrevlett.116.190801