Sentences with phrase «aligned spins of electrons»

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.

Like refrigerator magnets, chromium triiodide is a ferromagnet, a material that generates a permanent magnetic field owing to the aligned spins of its electrons.

Not exact matches

Cooling this to a few degrees above absolute zero and applying a magnetic field aligned the spins of one phosphorus electron per atom.

Choose some direction along which to align the magnets — say, the z - axis — and the spin of any electron will only ever be found to be up or down; no electron will ever be measured as three - quarters «up» along that direction.

Magnets are a good example of this: the electrons in magnets align themselves in a preferred direction of spin inside the material, and it is this that produces the magnetic field.

A few years ago, researchers from the University of Cambridge showed that it was possible to create electron pairs in which the spins are aligned: up - up or down - down.

And that if you heat a magnet up enough, then you have no magnet at all: High temperatures randomly jumble all the bits of magnetic material (ultimately orientations of spinning electrons) that had aligned themselves along the north - to - south - pole axis.

Now, the same researchers have found a set of materials which encourage the pairing of spin - aligned electrons, so that a spin current flows more effectively in the superconducting state than in the non-superconducting (normal) state.

In antiferromagnetic materials, the spins of electrons align in a regular pattern pointing in opposite directions to their neighbours.

But the electrons in antiferromagnetic materials — like chromium — tend to align so that their spin is the opposite of their neighbors.

Stacking up two «atomic sandwiches» yields coupled excited charge states across the planar interface with the magnetic direction or «spin state» becoming aligned for a large population of electrons.

To make real use of the electron spin, it has to be manipulated precisely: it has to be aligned, transmitted and detected.

In some materials, electron spins spontaneously align their direction, leading to the phenomenon of ferromagnetism which is well known e.g. in iron.

This alleviates the quantum traffic jam so that, when the material is cooled to a certain temperature, oppositely aligned electrons (magnetic partners where the «spin» of one electron points up and the adjacent one points down) form pairs and then become free to zip through the material unimpeded - a superconductor.

The strength of a magnet is a result of the spin of unpaired electrons and how the spins of different electrons are aligned with one another.

When a molecule or compound with an unpaired electron is placed in a strong magnetic field, the spin of the unpaired electron can align in two

When a molecule or compound with an unpaired electron is placed in a strong magnetic field, the spin of the unpaired electron can align in two Another dating method using electron spin resonance (ESR)-- also known as electron paramagnetic resonance (EPR)-- is based on the measurement of

When a molecule or compound with an unpaired electron is placed in a strong magnetic field, the spin of the unpaired electron can align in two Singlet Oxygen: Generation and Properties Leonard I. Grossweiner Wenske Laser Center, Advocate / Ravenswood Hospital Medical Center 4550 N. Winchester Avenue