Recently, a team of researchers from the University of California, San Diego and The Brookhaven Laboratory in New York, wrote in the Proceedings of the National Academy of Sciences that meteorites, extreme origins in space, provide them with a variety of material phases in the oldest states of the solar system. They’ve been looking for superconducting materials, but they’re not very lucky. So they looked at a variety of meteorites, studied 15 comets and asteroids, and found two meteorites, Montrabira and GRA 95205, with superconducting grains.
Mundrabilla meteorite debris (photo: James Wampler)
These phases have potentially tiny measurable properties, and the team has overcome this challenge with an ultra-sensitive measurement technique called magnetic field modulation microwave spectra.
The researchers characterized the meteorites as alloys of lead, tin and vanadium. They point out that superconducting particles in cold environments affect the origin of planets, the shape of magnetic fields, the generator effect, the motion of charged particles, and so on.
“Naturally occurring superconducting materials are unusual, but they are particularly important because they may be superconducting in the extraterrestrial environment, ” said researcher Wappler. “
The researchers subdivided and measured individual samples, allowing them to isolate the grains with the largest superconducting fractions. Next, the team used a series of technologies to characterize these grains, including vibration sample magnetic methods, energy dispersion X-ray spectroscopy, and numerical methods.
“These measurements and analyses identified possible alloys of lead, vanadium and tin,” explains researcher Wappler. “
According to Timmens, a renowned professor of chemistry and biochemistry, meteorites formed under extreme conditions are ideal for observing alien chemical species, such as superconductors, which are materials that conduct electricity or transmit electrons without hindrance. Superconductive materials are unique and exist on these extraterrestrial asteroids.
According to cosmic chemists, “Montrabira” is a meteorite rich in iron sulphides that is formed after melting and slowly cooling in the core of a star;
“Naturally collected materials are not pure-phase materials, ” said researcher Schuler. Even the simplest superconducting mineral lead rarely exists in natural form. “