Sentences with phrase «nanocrystallized ferromagnetic»

Due to its universal character, this theory is applicable to many fields of physics such as, e.g., the observation of the transition from metals to superconductors or the transition from ferromagnetic to paramagnetic systems.

FDA guidelines for first - time NeuroStar treatments call for 3,000 magnetic pulses delivered over 37.5 minutes (a rate considered low - frequency) by a C - shaped ferromagnetic coil held to the patient's scalp.

The discovery, to be published April 26 in the journal Nature, could have major implications for a wide range of applications that rely upon ferromagnetic materials, such as nanoscale memory, spintronic devices, and magnetic sensors.

«In contrast, the highly crystalline and uniformly flat 2 - D CGT, together with its small intrinsic anisotropy, allows small external magnetic fields to effectively engineer the anisotropy, enabling an unprecedented magnetic field control of ferromagnetic transition temperatures.»

The film also has ferromagnetic properties, in which the atoms» magnetic moments align in the same direction.

However, Rice points out that this technology will only detect ferromagnetic materials.

That's the most exciting part, especially when we start talking about adding in different types of metals that give it different characteristics, whether those be ferromagnetic materials or elements that might make it more insulating.

The spin - valve consisted of two ferromagnetic cobalt layers, one superconductive niobium layer with thickness of approximately 150 atoms and a layer of gold.

In the experiment researchers discovered an unexpected effect: when magnetization directions in two ferromagnetic layers were not parallel, the interaction between these layers and superconductive layer produced induced magnetization in the gold layer, «overjumping» the superconductor.

For example, one group recently showed that millimeter - scale wires can assemble in this way from ferromagnetic micro-particles.

They look like a «sandwich,» made of nanolayers of ferromagnetic material, superconductor and other metals.

Image of a ferromagnetic ring prepared using a scanning electron microscope: The magnetization (black / white contrast) runs along the ring and forms two domain walls.

The sign and magnitude of the heat - driven spin current can be controlled by the composition of a ferromagnetic layer and thickness of a heat sink layer.»

This current of heat creates a separation of electron spins that then diffuse through the Cu heat sink and affect the magnetization of a second ferromagnetic layer, CoFeB, causing the magnetization to tilt and then precess.

The red, upward - pointing arrows show a homogeneous ferromagnetic background.

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.

By taking snapshots of the actual spin patterns for a series of different evolution times the propagation of the ferromagnetic excitations can be measured with high resolution in space and time.

In ferromagnetic matter these spins are aligned within the so - called «Weiss» domains.

But due to the ferromagnetic interaction between them, they can also stick together forming an elementary mobile magnetic domain with about the same probability.

Verbeeck and his team have confirmed that this is the case by shining the spiraling beam onto a ferromagnetic film of iron.

By using thin (350 μm) ferromagnetic poles, localized actuation regions can be achieved within the microfluidic channels.

EPMs are a magnetic assembly consisting of two permanent magnets (one hard — very difficult to demagnetize, one soft — easy to demagnetize), two ferromagnetic poles, and a coil.

Researchers from North Carolina State University have solved a long - standing materials science problem, making it possible to create new semiconductor devices using zinc oxide (ZnO)-- including efficient ultraviolet (UV) lasers and LED devices for use in sensors and drinking water treatment, as well as new ferromagnetic devices.

University of Groningen physicists have taken a big step towards this goal by combining a niobium doped strontium titanate (SrTiO3) semiconductor with ferromagnetic cobalt.

Magnetic order is a common phenomenon in three - dimensional materials, such as ferromagnetic order in iron bar magnets, where the magnetic moments on all iron atoms point in the same direction.

The role of the metal - oxide interface in determining the spin polarization of electrons tunneling from or into ferromagnetic transition metals in magnetic tunnel junctions is reported.

«Spin polarization is achieved by sending the electrons through a ferromagnetic material», Van Wees explains.

The electrons in ferromagnetic materials — like iron, nickel and cobalt — tend to align so that their spin is oriented in the same direction.

Williams and his colleagues at Stanford and Santa Barbara were the first to discover that bulk strontium titanate (a common TMO) that was simultaneously superconducting and ferromagnetic.

The TMS apparatus had to be reconstructed without any ferromagnetic material in it.

Ultrafast laser light creates heat transport through the nonmagnetic / ferromagnetic / nonmagnetic tri-layer.

The thermal excitation in the ferromagnetic layer produces spin current in the adjacent nonmagnetic layer in a picosecond timescale.

Many have turned a songwriting pastime into a cottage industry — and their songs about physics are flowering in cyberspace in the form of downloadable MP3 files, lyrics sheets, albums, and Web sites listing titles like «Ferromagnetic Love,» «Coupled Oscillators,» and «Snell's Law — Macarena Style!»

The «wormhole» in this experiment is a sphere made of different layers: an external layer with a ferromagnetic surface, a second inner layer, made of superconducting material, and a ferromagnetic sheet rolled into a cylinder that crosses the sphere from one end to the other.

The condition that determines whether a substance is ferromagnetic is called the Stoner Criterion.

It explains why iron is ferromagnetic while manganese is not, even though the elements are found side - by - side in the periodic table.

Yet, despite their widespread use, at room temperature only three elements are ferromagnetic — meaning they have high susceptibility to becoming and remaining magnetic in the absence of a field, as opposed to paramagnetic substances, which are only weakly attracted to the poles of a magnet and do not retain any magnetism on their own.

These ferromagnetic elements are the metals iron, cobalt and nickel.

Artificial spin ice is a class of lithographically created arrays of interacting ferromagnetic nanometer - scale islands.

In particular, for dimension d > 1, Kondo physics dominates even at short distances, while the ferromagnetic RKKY state is energetically unfavorable.

Spin waves and phonons are strongly coupled in ferromagnetic and antiferromagnetic structures.

The aligned spins of electrons left a distinct sign when a beam of polarized light was reflected off the material's surface in ferromagnetic materials.

Using a new trick, they have been able to induce synchronous motion of the domain walls in a ferromagnetic nanowire.

In 2006, condensation in a ferromagnetic yttrium - iron - garnet thin film was seen even at room temperature, [23][24] with optical pumping.

A team of Argonne researchers led by materials scientist Anand Bhattacharya examined the relationship at interfaces between layers of nonmagnetic nickel - based nickelate material and a ferromagnetic manganese - based manganite.

Effect of thermal annealing on structure and magnetic properties of ferromagnetic Mn0.5 Bi0.5 nanocrystals

In an earlier study, MIPT physicists excited magnetic vortices in spintronic devices based on a ferromagnetic material and a topological insulator.

In a ferromagnetic material, such as iron or nickel, the randomness of the electron spins at high temperatures makes the material symmetric in all directions.

First the team investigated how angle θ between ferromagnetic layer magnetizations depends on angle φ between the axes of the antiferromagnets (fig. 1a, top).

We argue that essentially all of the signatures of magnetism can be sorted into two distinct categories: (1) magnetic phases (e.g., ferromagnetic or Kondo) involving local magnetic moments and their coupling to itinerant electrons; (2) metamagnetic effects that are mediated by attractive electron - electron interactions that do not involve local moments.