Created the first two-dimensional magnet with a thickness of one atom

Date:

2017-06-09 17:30:05

Views:

2563

Rating:

1Like 0Dislike

Share:

Created the first two-dimensional magnet with a thickness of one atom Source:

According to the editors of the journal Nature, a group of scientists from the University of Washington managed to get a connection on the basis of chromium and iodine. The structure of the compound is something of a counterpart of graphene, with a thickness of only 1 atom. This new compound has pronounced magnetic properties, representing, in fact, «two-dimensional planar magnet».

All the magnetic materials consist of special areas called «domains». As a rule, the spins of the electrons of the atoms in the domains are rotated in the direction opposite to that in which the parties directed electron spins in neighboring domains. Thanks to this, some metals not having magnetic field can be magnetized under the influence of an external magnetic field. This ability of materials to change properties under the influence of a magnetic field is used in the development of new magnetic storage of information. Scientists believe that by using magnetic materials having a flat structure, it is possible to achieve significant progress in the development of new media based on magnets. During the series of tests, the scientists were able to create several versions of two-dimensional magnets, using technology that was used by the creators of graphene to obtain the first samples of this material. As said one of the participants of the project Xu Xiaodong,

«Long known that salt triode chromium (CrI3), the connection of the three iodine atoms and one atom of chromium has magnetic properties that can in theory be stored in a flat layer of salt. The problem was that previously, it was impossible to synthesize a single layer of molecules of this compound. Moreover, many physicists doubted that a CrI3, or any other magnetic material will retain its properties when converting to a two-dimensional structure».

A Team of scientists has solved this problem in an elegant manner: «tearing» a few strands of triiodide chromium «three-dimensional» connection, the experts measured their magnetic properties and a number of other characteristics. Similarly, scientists have created a 2D magnet using an alloy of chromium, germanium and tellurium. Interesting that triode chrome loses its properties if «tear» just two layers of molecules, but retains them in the presence of three or more layers. Why is this happening, scientists still don't know.

«two-Dimensional magnets are extremely interesting in themselves, since they can very clearly and precisely change the magnetic properties of their individual parts. But even more interesting is the combination of several heterogeneous layers of this kind. In this case, inside they can encounter exotic phenomena that we've never seen before».

Based on materials of agencies of RIA «news»

Recommended

What will be the shelter for the first Martian colonists?

What will be the shelter for the first Martian colonists?

Mars is not the friendliest planet for humans While the Red Planet is roaming rovers, researchers are pondering the construction of shelters and materials needed by future Martian colonists. The authors of the new paper suggest that we could use one ...

New proof of string theory discovered

New proof of string theory discovered

Just a few years ago, it seemed that string theory was the new theory of everything. But today the string universe raises more questions than answers String theory is designed to combine all our knowledge of the Universe and explain it. When she appe...

What is the four-dimensional space?

What is the four-dimensional space?

Modeling camera motion in four-dimensional space. View the world in different dimensions changes the way we perceive everything around, including time and space. Think about the difference between two dimensions and three dimensions is easy, but what...

Comments (0)

This article has no comment, be the first!

Add comment

Related News

What it's like on the edge of the Universe?

What it's like on the edge of the Universe?

There is a threshold beyond which we cannot go, there are things we will never know. But one thing we do know, and we have powerful tools: science, imagination, analysis. 13.8 billion years ago the universe as we know it, was born...

Scientists from the UK told why dinosaurs cannot be brought back to life

Scientists from the UK told why dinosaurs cannot be brought back to life

it is Difficult to find anyone who has not heard about the film series «Jurassic Park», launched in 1993 by Steven Spielberg. The theory of the return of the dinosaurs by cloning, as shown in the film still looks pretty ...

Mission to the sun protects us from solar storms and assist in space exploration

Mission to the sun protects us from solar storms and assist in space exploration

Prayer, sacrifice, the sun — you can tell people worshipping the sun since time immemorial. This is not surprising. It is only 150 million miles away is close enough for its light, heat and power supported by the entire human race...

American scientists have created a soft robot

American scientists have created a soft robot

From may 29 to June 3 in Singapore held the international conference on robotics and automation. In the framework of this event, scientists from the United States presented almost entirely soft robot. Their invention has 4 limbs a...

Why heat kills cells?

Why heat kills cells?

If the temperature rises above a certain threshold, the cell collapses and dies. One of the simplest explanations of this lack of heat is that the proteins necessary for life, are those which extract energy from food or sunlight, ...

10 high profile cases when the scientific laurels went not to the

10 high profile cases when the scientific laurels went not to the

In school we learn about all scientists because they have made invaluable discoveries and found a lot of important decisions in everything from horrible diseases to brilliant technologies. However, the history is often not what yo...

What happens when it evaporates, the singularity of a black hole?

What happens when it evaporates, the singularity of a black hole?

Not so easy to imagine, given the diversity of the forms taken by matter in the Universe, over millions of years, there was only neutral gas atoms of hydrogen and helium. And similarly, it is difficult to imagine that one day, in ...

MIT staff have learned

MIT staff have learned "programming" pasta

Scientists from the Massachusetts Institute of technology are engaged not only in developments in the field of robotics and electronics, but also in the field of modernization of the food industry. Not long ago, during a conferenc...

Fluctuations of space and time: the proposed new explanation of dark energy

Fluctuations of space and time: the proposed new explanation of dark energy

In the new study, scientists at the University of British Columbia suggested that the universe is expanding due to the fluctuations of space and time. At the moment around the mysterious dark energy has crowded a lot of confused t...

The chances of your appearance was not so small

The chances of your appearance was not so small

in order For you have existed, a lot of incredible events had to unfold in a certain way. The right egg and sperm were to meet, to create you with a specific DNA sequence, and breathe in you life; one sperm's chance of 1 to 250 00...

Can human consciousness affect the physical world?

Can human consciousness affect the physical world?

Perhaps one of the most intriguing and interesting phenomena in quantum physics that Einstein called "spooky action at a distance", also known as quantum entanglement. This quantum effect is the basis of quantum computers as quant...

Can the universe one day collapse?

Can the universe one day collapse?

One of the greatest achievements of the 20th century was the precise definition of how big, broad and massive is our universe. With about two trillion galaxies, enclosed in a volume with a radius of 46 billion light years, our obs...

Launched the first in Russia multi-node quantum network

Launched the first in Russia multi-node quantum network

Scientists from the Russian quantum center (RCC) managed to launch the first in Russia multi-node quantum network intended for data transfer. In the development of domestic experts used two methods of encrypting information that m...

Microsoft creates cloud-based storage system based on DNA

Microsoft creates cloud-based storage system based on DNA

Research in the field of new media are now almost all large corporations. But the research group Microsoft Research went, I think, the farthest. Last year, the developers have stated that the storage of information. And according ...

What if the Earth started to spin faster?

What if the Earth started to spin faster?

In this life there are enough things to worry about. Nuclear war, climate change, whether you brush your teeth. Of the earth, which is spinning too fast, simply can not be in this list, because it will happen soon, certainly not —...

Five reasons why the 21st century will be the heyday of astrophysics

Five reasons why the 21st century will be the heyday of astrophysics

For many centuries, we arrogantly believed that he had found almost all the answers to the deepest questions. Scientists thought that Newtonian mechanics describes everything, until he discovered the wave nature of light. Physics ...

Google has found an effective way to teach the AI to build even more powerful AI

Google has found an effective way to teach the AI to build even more powerful AI

Google has announced the next big step in the development of artificial intelligence, describing a new approach to machine learning, by which neural networks can be used to create more efficient neural networks. In fact, we are ta...

Created technology that allows you to listen to the bacteria and cells

Created technology that allows you to listen to the bacteria and cells

Engineers from the University of California San Diego have created a nanoscale optical fiber that has an incredible level of sensitivity: it is capable of detecting fluctuations produced by the turbulence created by the moving bac...

Is it possible to travel in time from the point of view of science?

Is it possible to travel in time from the point of view of science?

Never wanted to go somewhere another time? No, not with the usual speed at which we are "bored" going forward — second by second. Either: the the faster to be able to get far into the future, remaining in the old age; the slower,...

Scientists first managed to obtain images of electron motion in graphene

Scientists first managed to obtain images of electron motion in graphene

Such material, graphene represents a two-dimensional carbon lattice with a thickness of only 1 atom, has recently become increasingly popular. And study its properties by specialists from around the world. Just recently a group of...