Sentences with phrase «magnetic materials using»

One reason has been the steady improvement in sensors used to read and write bits of data in the magnetic materials used to make the disks.

Not exact matches

The RAPID 4000 is used for the inspection of spice and grain materials to detect and reject magnetic and nonmagnetic metal contamination, even when enclosed in the product.

Governor Andrew Cuomo and the MTA announced plans to order an additional 700 magnetic wands, used to remove conductive material on tracks that lead to joint failures, and will also work to replace insulated joints.

By 3 - D printing a deformable material containing iron particles in a lattice structure, their metamaterials can be compressed using a magnetic field.

Haldane used the same ideas to explain the magnetic properties of some materials.

To speed up these processes, researchers have recently started to explore the use of ultrashort laser pulses that can switch magnetic domains in solid - state materials.

Interference effects could be used to generate patterned magnetic materials over large areas.

In addition to the potential medical uses, the self - assembly technique could have applications in optics, optoelectronics, magnetic technologies, sensing materials and devices, catalysis and nanotechnology.

«Now, we can suddenly use ordinary magnetic materials, combine them in a clever way with other materials, and make them work at room temperature,» says materials scientist Axel Hoffmann of Argonne National Laboratory in Illinois.

The model derives from a general lattice field theory, which is typically used to describe the quantum behavior of electrons in magnetic and electronic materials.

They used high - frequency magnetic materials in a dipole coil structure to build a thin, flat transmitter (Tx) system shaped in a rectangle with a size of 1m2.

But even before China flexed its market - dominating power a slew of scientific researchers had been investigating how to use less rare earths — or even none at all — by fabricating better magnetic materials.

And looking at systems like that, it's just inspiring to us and we say, well, life had a chance to work with certain materials — shells and bones and some magnetic materials — but really hasn't worked with a lot of materials that we would like to use ourselves that we consider more technologically important materials So, in my lab at M.I.T. we give organisms [the] opportunity to work with those materials and try to use them to build devices in a more environmentally friendly way.

But if the researchers can make the magnetic behavior stick around, the material could have uses ranging from medical imaging to exotic electronic circuitry.

The findings, which report the use of magnetic permeability - how easily a magnetic field will magnetize a material - are published today, Friday 11th September, in the Journal of Physics D: Applied Physics.

This new technique enables tight control over diameter, length and surface properties of the nanorods, whose optical, electrical, magnetic and catalytic properties depend on the precursor materials used and the dimensions of the nanorods.

«Even if this particular material will probably not be used because of the low temperatures and strong magnetic domains required, our experiments show what this kind of control could, in principle, look like,» adds Simon Gerber, first author of the publication.

Researchers from IMDEA Nanoscience, the Autonomous University of Madrid, the Madrid Institute of Materials Science (CSIC) and the University of the Basque Country describe in the journal Nature Physics this week how to create a powerful magnetic field using this new material.

The problem is solved by using magnetic fields, which confine and thermally insulate the charged particles in the fuel, keeping them away from material surfaces.

Because of the high magnetic field required to produce the magnetoresistance effect, Kobayashi says, the material isn't ready to be used in data storage devices.

IBM calls dubs it «racetrack memory,» because it uses magnetic domains to store information in columns of magnetic material (nanoscale «racetracks») arranged on the surface of a silicon wafer.

Since the operating temperature for fusion is in the hundreds of millions degrees Celsius, hotter than any known material can withstand, engineers found they could contain a plasma — a neutral electrically conductive, high - energy state of matter — at these temperatures using magnetic fields.

«In our study, we make use of the fact that a heat current passing through a magnetic material creates a separation of electron spins.

This process creates a current of magnetic dipoles that we use to manipulate the orientation of a second magnetic layer,» said David Cahill, a Donald B. Willett Professor of Engineering and head of the Department of Materials Science and Engineering at Illinois.

Research from a team led by North Carolina State University is opening the door to smarter sensors by integrating the smart material vanadium dioxide (VO2) onto a silicon chip and using lasers to make the material magnetic.

The circuit is realized using spin waves: wave - like perturbations in the magnetic properties of a material.

Generally speaking, magnetic fields can be used to change the magnetization of a magnetic material, much like a bar magnet can magnetize an otherwise nonmagnetic sewing needle, and can even reverse its magnetization completely in some cases.

From compasses used in ancient overseas navigation to electrical motors, sensors, and actuators in cars, magnetic materials have been a mainstay throughout human history.

Capture of all the transmitted electrons allows quantitative measurement of materials properties, such as internal electric and magnetic fields, which are important for use of the materials in memory and electronics applications.

In order to use skyrmions as a storage medium, it must be possible to manufacture the surfaces or interfaces on a sufficiently large scale, they must contain enough of the magnetic material, and the magnetic vortex must also occur at room temperature.

For example, VTT succeeded in using a permalloy ink to print a magnetically anisotropic material, which can be used in the manufacture of magnetic field sensors.

This method uses magnetic fields to break the time - reversal symmetry with certain specialized garnet and ferrite materials.

While there are several methods to measure the magnetic properties of bulk 3D materials, these techniques have no practical use to measure magnetic signals coming from monolayer materials.

Because neutrons are microscopic magnets that carry no charge, they can be used to interact with and excite other magnetic particles in the system without compromising the integrity of the material's atomic structure.

However, despite the huge importance this theory has in the following development of the whole physics of phase transitions, it has never been tested experimentally using a real magnetic material.

«What you really would like to do is get this temperature above room temperature, so you can switch the material by using a magnetic field,» Plummer said.

Better MRI scanners could result from a trick in which a magnetic field springs up from nowhere, using materials famous for their link to invisibility cloaks

Cobalt, which is classed as a «transition metal», is widely used in the fabrication of permanent magnets as well as in magnetic recording materials for data storage applications.

A research team led by Shunsuke Yoshizawa, ICYS researcher, NIMS, Takashi Uchihashi, leader of the Surface Quantum Phase Materials Group, MANA, NIMS, Emi Minamitani, assistant professor, School of Engineering, University of Tokyo, Toshihiko Yokoyama, professor, IMS, NINS, and Kazuyuki Sakamoto, professor, Graduate School of Advanced Integration Science, Chiba University, succeeded in precisely controlling the transition temperature of atomic - scale - thick superconductors using magnetic organic molecules.

Further testing of the material suggested that crosslinking, or bonding, using transition metals and rare - earth metals, caused the graphene oxide to possess new semiconducting, magnetic and optical properties.

The Ben - Gurion group integrated the diamond sensor with the superconductor on one chip and used it to detect the transition from normal conductivity to superconductivity, when the material expels all magnetic fields.

The interesting electronic and magnetic properties of this polymer will continue to be explored, with the aim of making highly magnetic materials for use in data storage applications, key to improving the performance of current computer technologies.

Topological spintronics uses rotating geometrical «defects» in the overall charge carrying topology of a material to control magnetic behavior.

The UCLA Engineering team used multiferroic magnetic materials to reduce the amount of power consumed by «logic devices,» a type of circuit on a computer chip dedicated to performing functions such as calculations.

Budker, who works on sensitive magnetic field detectors, and Folman, who builds «atom chips» to probe and manipulate atoms, focused in this work on using these magnetometers to study new materials.

Co-lead author Fatma Al Ma'Mari, from the School of Physics & Astronomy at the University of Leeds, said: «Being able to generate magnetism in materials that are not naturally magnetic opens new paths to devices that use abundant and hazardless elements, such as carbon and copper.»

Using a rotating electric current that induces a magnetic field, computer data could be transferred to small particles of magnetic materials, with each particle aligned either up or down, representing a one or a zero.

POINTER sets itself apart by using low - frequency magnetic fields that can transmit signals through any building materials.

American researchers have shown that prospective magnetic fusion power systems would pose a much lower risk of being used for the production of weapon — usable materials than nuclear fission reactors and their associated fuel cycle.

They then used a magnetic force microscope to demonstrate the material's local write - read - erase multi-functionality at room temperature.