Imaging spin properties using spatially varying magnetic fields

نویسندگان
چکیده

برای دانلود رایگان متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Imaging spin properties using spatially varying magnetic fields

We propose a novel method to image spin properties of spintronic systems using the spatially confined field of a scanned micromagnetic probe in conjunction with existing electrical or optical global spin detection schemes. It is thus applicable to all material systems susceptible to either of those approaches. The proposed technique relies on numerical solutions of the spin diffusion equation i...

متن کامل

Numerical investigation of nonlinear, spatially-varying pulsed magnetic fields

Introduction Curved spatially-varying magnetic fields have a strong impact on MRI, especially in the context of correcting magnetic field inhomogeneities (shimming) [1]. Conventional methods are well established, but new progress from hardware and sequence development intends to overcome certain limitations, e.g. by the use of higher-order shim coils or the application of spatially-selective dy...

متن کامل

Ferrohydrodynamic pumping in spatially uniform sinusoidally time-varying magnetic fields

Past work has analyzed ferrofluid pumping in a planar duct driven by spatially non-uniform traveling wave magnetic fields. Here we examine a much simpler case where the applied magnetic fields along and transverse to the duct axis are spatially uniform and varying sinusoidally with time. In the uniform magnetic field the magnetization characteristic depends on particle spin but does not depend ...

متن کامل

Modeling Ferrofluids in Spatially-traveling Sinusoidally Time-varying Magnetic Fields

Ferrofluids are stable colloidal suspensions of nanosize ferromagnetic particles in either an aqueous or an oil-based solvent1. In the presence of a magnetic field gradient within a ferrofluid, magnetic forces and torque are developed to drive magnetic particles, which subsequently draw along the liquid solvent carrier. This allows continuous actuation and precise positioning of the ferrofluid ...

متن کامل

Ferrohydrodynamic pumping in spatially traveling sinusoidally time-varying magnetic fields

In this paper, we present a numerical method to simulate the dynamics of ferrofluids in spatially traveling, sinusoidally time-varying magnetic fields. Actuation using traveling waves involves magnetic body forces and torque on the magnetic moment of nanoparticles, both of which affect the overall pumping. r 2004 Elsevier B.V. All rights reserved. PACS: 47.65.+a; 47.11.+j

متن کامل

ذخیره 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: 2012

ISSN: 0021-8979,1089-7550

DOI: 10.1063/1.3673259