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| Keywords: Iron (6842745269).jpg When calcium atoms yellow spheres in these iron-based crystals left are replaced on some occasions with praseodymium blue sphere in right image the crystals are able to superconduct at up to 47K - but the crystals can also collapse shrinking by about 10 percent in size Adding a sufficient amount of praseodymium is necessary to avoid the collapse which compromises the materials usability in electronics applications See also http //www nist gov/ncnr/iron-020712 cfm www nist gov/ncnr/iron-020712 cfm Credit NIST Disclaimer Any mention of commercial products within NIST web pages is for information only; it does not imply recommendation or endorsement by NIST Use of NIST Information These World Wide Web pages are provided as a public service by the National Institute of Standards and Technology NIST With the exception of material marked as copyrighted information presented on these pages is considered public information and may be distributed or copied Use of appropriate byline/photo/image credits is requested https //www flickr com/photos/usnistgov/6842745269/ Iron 2012-02-07 12 32 https //www flickr com/people/63059536 N06 National Institute of Standards and Technology PD-USGov National Institute of Standards and Technology https //flickr com/photos/63059536 N06/6842745269 2016-09-07 02 14 56 United States Government Work Uncategorized 2016 November 4 | ||||
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