The researchers from the University of Minnesota and their colleagues from Germany, France and China reported the discovery of a new type of magnetic wave associated with oxygen atoms. The new findings could help improve the activity of superconductor power cables used in national power grids
An international team of researchers, led by physicists from the University of Minnesota, has announced an important breakthrough in efforts to understand the phenomenon of high-temperature superconductivity in copper oxides.
The researchers from the University of Minnesota and their colleagues from Germany, France and China reported the discovery of a new type of magnetic wave associated with oxygen atoms. The new findings could help improve the activity of superconductor power cables used in national power grids.
The findings of the research, led by Martin Greven, a professor in the School of Physics and Astronomy at the University of Minnesota, were published in the prestigious journal Nature, and are also scheduled to appear in the scientific journal Science.
"Following the Nobel Prize-winning discovery of high-temperature superconductivity in materials made of complex copper oxides in the mid-25s, the effort to understand this phenomenon has been one of the main scientific challenges in the field of physics for the past XNUMX years, with over a hundred thousand publications on the subject," the researcher notes the main
"Although the commercialization of copper oxide materials of this type, in the form of improved electrical cables, has recently begun, physicists have not yet been able to solve the mystery of why these special materials are superconductors at all. It is claimed that the unusual magnetism of the materials is responsible for their superconductivity," explains the lead researcher.
In their experiments, the researchers bombarded copper oxide crystals with a powerful beam of neutrons. The neutrons themselves are magnetic, and by carefully examining their scattering patterns from the crystals, the researchers were able to prove the existence of unusual magnetic waves associated with the oxygen atoms.
"We believe that our discovery sheds new light on this controversial topic of superconductivity," adds the lead researcher.
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Isaac:
http://en.wikipedia.org/wiki/High-temperature_superconductor
http://en.wikipedia.org/wiki/Room-temperature_superconductor
Could these discoveries lead in the near future to the creation of superconductors at normal temperature, to create high-speed trains that float above the tracks? In addition to this, will there also be long-distance power transmission lines (under the same conditions as the previous question)?
thank you for the answer
There is more than one Israeli in common in capturing the anti-hydrogen. Actually there are 5.
To my father from comment 5: Cynicism has not yet led humanity to a scientific breakthrough.
On the other hand, your comment was the funniest here, so damn it, move on.
for intellectual masturbation
Even a neutral particle can have a magnetic moment, this is its spin. It is exactly this fact that the researchers quoted in the article take advantage of. The neutrality of the neutrons allows them to penetrate the material inside and their spin allows them to be sensitive to the magnetic field in the material.
Linib
This is not the Meisner effect at all. To the best of my understanding, this is the magnetic order of the normal phase, that is, above the phase transition temperature. Beyond that, the Meissner effect explicitly claims that a magnetic field cannot penetrate a conductor, as a rule this is true beyond a certain length called the London penetration distance (named after two Jewish experimentalists, the London brothers). The exceptions are type II superconductors where magnetic fields penetrate the superconductor in the form of vortices but they destroy the superconductivity along their lines of penetration.
AVI is quite an old discovery...
When a superconductor is cooled to a low temperature with liquid nitrogen and brought close to a magnet, a "Meissner effect" is created
which actually creates a magnetic field.
In the article it is written that "neutrons themselves are magnetic". I did not understand this sentence... Neutrons have no electric charge, how can they be magnetic?
Itzik C.
The magnetic and superconducting phenomena usually go together about like cat and mouse or oil and water. A normal conductor repels magnetic fields that cannot exist within it. A type II superconductor allows magnetic fields to penetrate it through vortices, discrete regions that form lines deep into the superconductor when in other regions there is no magnetic field. Materials that allow superconductivity at high temperatures have an antiferromagnetic order above the phase transition temperature (the temperature at which the material becomes a conductor) or in simpler Hebrew when the superconducting material is not sufficiently cooled it is a normal material but inside it has a special structure of magnetic fields so that the magnetic field of each site in the lattice (which makes up the material) points in a different direction than its neighbors.
my father
Thanks for translating the article from Universe Today.
The Israeli partner in the creation of the anti-hydrogen in Cerchan is Dr. Eli Sharid. You can find a short interview with him about the discovery today in Atun Ha'aretz. If I'm not mistaken, Dr. Sherid was involved in creating the traps for the anti-hydrogen concept. This is of course the main problem in the discovery of anti-hydrogen. Once the anti-hydrogen is formed if it collides with the walls and annihilates with normal matter, the anti-hydrogen must therefore be trapped by a potential trap that will prevent it from colliding with the vessel walls.
Incorrect syntax, the article is incomprehensible and not detailed
Is magnetism a bound phenomenon of a superconductor?
I translated the news from Universe Today and it will be published tonight. However, no Israeli partner was mentioned there.
What is his name, and if you can direct me to a detail about his part.
To the best of my understanding, the research in question did not solve the open problem of what is the mechanism for superconductivity at high temperatures, but simply succeeded in deciphering the magnetic order of the superconducting materials, which could turn out to be an important step on the way to understanding the microscopic mechanism responsible for superconductivity at high temperatures.
A much more interesting discovery is the creation of a hydrogen atom composed of antimatter. Recently, a team of scientists from Chern announced that they also have an Israeli partner, that they succeeded in producing and capturing about 30 anti-hydrogen atoms. This is the first time they have succeeded in making an element out of antimatter! It would be nice if science would report this important discovery.
Let's be honest for a moment..
Nothing is written here!!
But at least you know you have to look.
Will the discovery lead to a revolution in the field of aviation?
They discovered a conductor floating above a magnet. From Wikipedia
Most of this article is about who discovered it (several times repeat the rather long list of the countries that participated in the study). Almost no information about the discovery itself.
Anyway - thanks for the translation.
to 2. Discovered the reason for the question why copper compound
And oxygen transfers electricity better (ie: with less loss
brown) from clean copper.
This discovery has economic and research implications
Most respected.
The article really doesn't say what they discovered. A lot of talk about who participates in the research and how important it is. But what did they discover?
For the next test in the fields..