source：wiredWith a gaping tunnel carved deep into the rock behind him, the Turkish energy and natural resources minister, Fatih Dönmez, took to his podium to reveal the big news. He proudly announced that the ground below his feet was positively bursting with rare earth elements—694 million tons’ worth. Enough to rival China, he added.In the two weeks since, breathless news stories have hailed Turkey’s “discovery” of this gargantuan bounty. “Move over China,” one report read.There are 17 rare earth elements, and many of them make their way into a bewildering list of high-tech products—fro...
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source:.miragenewsNew solid-state device represents important step toward quantum networks; holds quantum state for up to 28 microsecondsWASHINGTON – Researchers have developed a practical integrated quantum memory device based on a new fiber-coupled waveguide written into a rare-earth doped crystal. Quantum memory stores a quantum state for later retrieval much like computer memory stores binary information. The fiber-integrated solid-state platform can hold a quantum state up to three orders of magnitude longer than previously demonstrated in integrated memories.Jelena V. Rakonjac from ICFO-...
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2022
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source:newsThe process by the Rice lab of chemist James Tour exposes a precursor to rapid heating and cooling to produce two-dimensional materials, in this case pure boron nitride and boron carbon nitride. Both have until now been hard to create in bulk, and nearly impossible to produce in easily soluble form.The lab’s report in Advanced Materials details how flash Joule heating, a technique introduced by the Tour lab in 2020, can be tuned to prepare purified, microscopic flakes of boron nitride with varying degrees of carbon. Experiments with the material showed boron nitride flakes can ...
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2022
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source:miningHow strong are rare earth magnets?Magnets are an integral part of many technologies and appliances in the 21st century.From tiny fridge magnets that hold to-do lists to powerful ones that create magnetic fields for electricity generation from wind turbines, there are many different types of magnets.The world’s strongest magnets, also known as rare earth magnets, are made by alloying certain rare earth elements with other materials.But just how strong are rare earth magnets, and what makes them so powerful?Measuring magnet strengthThe above infographic uses data from First4Magnets ...
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2022
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