Switchable magnetic dipole induced guided vortex motion

Spin-Torque-Induced Rotational Dynamics of a Magnetic Vortex Dipole

G. Finocchio, O. Ozatay, L. Torres, R. A. Buhrman, D.C. Ralph, B. Azzerboni Dipartimento di Fisica della Materia e Tecnologie Fisiche Avanzate. University of Messina. Salita Sperone 31, 98166, Messina Italy. Hitachi GST, San Jose Res. Ctr., San Jose, CA, 95135 Cornell University, Ithaca, New York 14853-2501, USA. Departamento de Fisica Aplicada. Universidad de Salamanca. Plaza de la Merced s/n ...

Far-field detection of the dipole vortex.

The energy flow lines (field lines of the Poynting vector) of electric dipole radiation exhibit a vortex structure in the near field when the dipole moment of the source is in circular rotation. The spatial extend of this vortex is smaller than a wavelength and may not be observable by a measurement in the near field. We show that the rotation of the field lines close to the source affects the ...

Acoustic Scattering by a Vortex Dipole ZHONGQUAN

Submitted for the DFD15 Meeting of The American Physical Society Acoustic Scattering by a Vortex Dipole ZHONGQUAN ZHENG, JUNJIAN ZHANG, Univ of Kansas — Acoustic scattering in vortical flow has been an interesting and practical topic, with applications in problems such as acoustic scattering of turbulent flow. In this study, the linearized Euler equation model is employed to investigate sound w...

Magnetic Vortex

Direct observations of vortex structure only appear recently; in this essay we will examine these first observations. And then introduce experiments and theory about the dynamics of vortex core; meanwhile we will propose the principle of chirality conservation in vortex; and with this idea we present another explanation in Bussmann’s experimental results. Finally, reveal the high possible appli...

Dipole - Dipole Interactions of Charged - Magnetic Grains