Superconducting materials in meteorite-scientists’ latest discovery

By yqqlm yqqlm

Introduction:Scientists have studied meteorites through the technology of magnetic field modulated microwave spectroscopy (MFMMS) and found superconductivity in one of the world’s largest meteorites material.

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Mondrabi The main body of the meteorite. Scientists have discovered particles of superconducting material in small pieces of meteorite fragments. (Source:Grammy Chechad, Wikimedia Commons)

According to a new study, scientists have detected and tracked that the world’s largest meteorite contains a large amount of superconducting material.

Superconducting materials are materials that conduct electricity without resistance. Scientists working on quantum computers and companies trying to increase energy conversion rates are craving this material.

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The superconductor found in Australian meteorite is a known Material, its discovery process can be said to be very shocking.

“The biggest gain is that there are superconductors in the sky, pure and natural.” Ivan Schuler, one of the main authors of a subject at the University of California, San Diego, told Gizmodo.

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Schuler’s team is not only concerned about meteorites, they are committed to Look for superconducting materials in various places. Six years ago, his team launched a technology called Magnetic Field Modulation Microwave Spectroscopy (MFMMS), which involves scientists placing small samples into a hole filled with microwaves and oscillating magnetic fields And then it starts to cool down. When the samples change from a conductor to a superconductor, the way they absorb microwaves will change dramatically. This method allows scientists to quickly scan large amounts of materials to determine whether they are superconductors.

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This is exactly what the researchers are doing. They used the authorization of the US Air Force to capture the superconductivity of various materials. If superconductors can only be formed in extreme environments, such as alien environments, then meteorites become the first choice for research.

The team scanned hundreds of samples of meteorites, starting with small meteorites and then larger. Graduate student James Warpler finally detected the transition of superconductors in two meteorites:a piece of Mondela Bila meteorite from one of the world’s largest meteorites, including 22 tons of meteorites scattered throughout the Narapo Plain in Australia Fragment; the other comes from a meteorite called GRA95205. The superconductor material is an alloy material composed of indium, lead, and tin. These elements have been called superconductor materials by scientists before. This is the first evidence of superconductivity in space.

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This discovery is not a fascinating Eureka moment. Since this superconductor is a known material on Earth, scientists immediately wanted to find out whether they inadvertently contaminated the sample.

Wopler said to Gizmodo:”I don’t remember the moment when I discovered it. My first reaction was that it was lying to me, This is just something else. This kind of reaction is a little hypocritical, but it’s not bad, at least prompt me to check my inference a second time.”

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The team brought their samples to the two scientists at Brookhaven National Laboratory Zhu Yimei (transliteration) and Cheng Shaobo (transliteration), using an electron microscope Detection. Only after this confirmation can they be confident that they have indeed discovered the superconductors that naturally exist in space. Wopler first published his research results at the 2018 meeting of the American Physical Society in March. Now the team has published the peer-reviewed paper in the Proceedings of the National Academy of Sciences.

Munir Humayun, a professor at Florida State University, once again verified this subject because he was very interested in the discovery. He said that the author ruled out obvious sources of pollution, and this part of the work was very beautiful. But we know that this alloy exists synthetically on the earth, which is bad. He told Gizmodo:”The problem with no obvious pollution source is that the pollution source is not obvious enough.”

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Despite this, this paper is also one of the kind of papers that amazes”wow” when read. Hu Mayun puts forward:”We have to re-examine the omissions in previous research.” This paper opened the door to the whole field to study the enjoyment of indium, lead, tin alloys that have never been known in meteorites before. Rare metals.

It’s hard to tell how this alloy is formed in space. These meteorite fragments may have undergone many chemical catalysis, such as recrystallization caused by the formation of the solar system, covering these The environment when the material was first formed, although this alloy cannot become a superconductor in the earth’s room temperature range, there are countless areas in space below 5 Kelvin, which can make them into a superconductor environment. In addition, the types of materials in the GRA95205 meteorite indicate that if there are other extreme temperatures, other materials may also become new superconductors.

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If these alloys have become superconductors in extreme cold space Attributes, they may also affect the magnetic field around them, and the electromagnetic phenomena they produce can be seen on the earth through electronic telescopes, but these assumptions still need more evidence to support, model and study before testing the water.

For Schuler’s team, discovering a material known on Earth does not stop them from looking for new superconductors. They will continue to use MFMMS to scan samples that may contain new materials.

Author:Ryan F. Mandelbaum


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