This procedure is similar to the conventional optical microscopy with the picture showing the distribution
of local magnetic fields.
When the waves pass through a magnetized region, the polarization changes direction in proportion to the strength
of the local magnetic field.
Not exact matches
Scientists have proposed that heat emanating outward from the planet's core may pass through an inner layer
of superionic ice, and through convection, create vortices on the outer layer
of ionic water that give rise to
local magnetic fields.
In the course
of their research into the use
of magnetic domain walls (
local regions
of magnetic «charge» usually driven by
magnetic fields) to increase our capacity for information storage and logical processing, physicists at the University
of Nottingham have discovered a phenomenon which has allowed them to «manipulate» the structure
of a
magnetic domain wall.
A team
of researchers at the Brazilian Center for Physics Research is studying the motion
of vortex domain walls —
local regions
of charge that collectively store information via their configuration — driven by
magnetic fields in ferromagnetic nanowires, which are configured in a straight line with an asymmetric Y - like branch.
Upon exiting the heliopause, the
local measurements
of the
magnetic field by Voyager 1, shown here as a compass needle, differed by 40 degrees from the «true
magnetic north» estimated to be the direction
of the
magnetic field in the pristine interstellar medium.
The researchers found that the radiofrequency wave for the plasma production, called a helicon wave, is reflected by a
local change
of the refractive index (contour plot in Fig), which is introduced by the rapidly bent
magnetic field structure (white arrows in Fig).
With the help
of EDMR, electrically detected
magnetic resonance, an ultrasensitive method
of measurement, they were able to determine the
local defects» structure by detecting their
magnetic fingerprint in the photo current
of the solar cell under a
magnetic field and microwave radiation.
A team
of scientists working at the U.S. Department
of Energy's (DOE) Argonne National Laboratory and led by Northern Illinois University physicist and Argonne materials scientist Zhili Xiao has created a new material, called «rewritable
magnetic charge ice,» that permits an unprecedented degree
of control over
local magnetic fields and could pave the way for new computing technologies.
The electronic spin
of nitrogen - vacancy (NV) centers in diamond is extremely sensitive to
local magnetic fields, which makes them a valuable tool for sensing nuclear and electronic spins in their vicinity.
In particular, the formation
of shocks and the consequent a) departure from
local thermal equilibrium, which may be important for baryogenesis, and b) the generation
of vorticity which may be important in the origin
of primordial
magnetic fields.
You one can imagine a frequency increase with an increasing
magnetic field, due to the increase in
magnetic pressure raising the
local speed
of sound near the surface where it is cooler and where the p - modes spend most
of their time.