Professor layton maske: Amazon.de Die Website wurde nicht gefunden

A cheap and common metal, pyrite, nicknamed «fool’s gold» because of its resemblance to real gold, has proven to be very useful. With it, scientists have made a breakthrough that will have a huge impact on the future of our computers.

What exactly happened?

University of Minnesota scientists and engineers were able to electrically convert non-magnetic pyrite into a magnetic material. This is the first time in history that people have managed to transform a completely non-magnetic material into a magnetic one. And this could be the first step in creating new magnetic materials for more energy-efficient computer memory.

“Most people familiar with the concept of magnetism would probably say that it is impossible to electrically convert a non-magnetic material into a magnetic one. However, when we looked deeper into the problem, we saw the potential for this.” , says Professor Chris Layton, lead author of the study.

Layton and his colleagues have been studying the possibility of using «fool’s gold» in solar panels for more than a decade. Unfortunately, scientists have never found a way to make pyrite efficient enough to make inexpensive, clean solar cells. But they found something better.

“We have been trying to identify the main obstacles to making cheap and non-toxic solar cells. At the same time, my group was working in a new area magnetosonic waves where we are trying to use electrical voltages to control the magnetic properties of materials. This property has potential applications in magnetic storage devices. At some point, we realized that these two lines of research needed to be combined” , says Professor Layton.

The scientists used a method called electrolyte gating. They took non-magnetic pyrite and placed it in contact with an electrolyte. Then they applied a small voltage of 1 volt to the system. As a result, positively charged molecules moved to the interface between the electrolyte and pyrite, creating magnetism. So pyrite, which does not have magnetic properties in nature, became magnetic. It is also very important that by turning off the voltage, the scientists were able to return the material to its original non-magnetic state. That is, magnetism can be turned on and off at will. nine0004

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Why is this important?

At least, because earlier it was considered impossible. Until now, it was believed that the effect of ferromagnetism can be activated by electric current only when exposed to materials that initially have magnetic properties. A new study with pyrite proves that it is possible to electrically induce ferromagnetism even in a completely non-magnetic material. nine0004

“When we apply voltage, we are essentially pouring electrons into the material. It turns out that if high enough electron concentrations are obtained, the material can become ferromagnetic,” explains Prof. Layton.

The discovery is equally important for science and for the world of technology. After all, if the experiment was successful with pyrite, then the same effect can be expected from other non-magnetic materials.

If we talk about the practical application of the discovery, we are talking, first of all, about the creation of memory modules for electronics, which consume several times less electricity. With such memory, computers will become colder, and smartphones will consume battery power more slowly. nine0004

Prof. Layton’s team plans to test the process with other materials in the near future to demonstrate its potential to create real devices. However, scientists no longer doubt their success.

So the «fool’s gold», which for centuries drove gold miners crazy, suddenly formed the basis of an important scientific discovery.

Research published in Science Advances.

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[5.07] PRO games podcast: the perfect sequel

This issue is largely dedicated to those who love to shoot, but its main character is the role-playing game Nier: Automata. In addition, we can not help but touch on the topic of Nintendo Switch. The console was not as good as expected.

nine0002
This issue is largely dedicated to those who love to shoot. Especially for them, we will talk about the new Sniper Elite 4, the experience of Ghost Recon: Wildlands, the exciting Gunfight mode that recently appeared in Titanfall 2. However, the protagonist of this podcast is the role-playing game Nier: Automata. It will be released in Europe very soon, and the Japanese are already playing it and sharing the details.

In addition, we can not help but touch on the topic of Nintendo Switch. The console was not as good as expected. Nintendo still has a lot to do to bring the device software to a sane state. nine0004

Enjoy watching!

Worked on the issue:

• Vitaly Kazunov — chief editor of GAMETECH.ru
• Mikhail Shkredov — drummer GAMETECH.ru

Threads:

• 00:45 — one bullet — one corpse in Sniper Elite 4 ;
• 15:40 — a typical Ubisoft sandbox called Ghost Recon: Wildlands ;
• 32:50 — «Shootout» at Titanfall 2 — a reason to return and stay in the game;
• 39:00 — one of the best games of the year — Nier: Automata ;
• 48:50 — will you return to Morrowind ?
• 52:00 — Nintendo Switch is not as good as it initially seemed;
• 1:06:40 — The Legend of Zelda: Breath of the Wild vs Horizon: Zero Dawn .

Podcast audio version (MP3 download):

Thank you for your attention and see you next week!

2017-02-25 13:08:00

Vitaly Kazunov

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