Praseodymium 123 Single Crystal

Though 123 is a high temperature superconductor, pure praseodymium is a silvery rare-earth metal that is soft and ductile. When the element comes into contact with air, a green oxide develops on its surface that may be easily chipped away. Praseodymium was discovered in 1885 when Carl Auer von Welsbach separated a salt of the metal from a blend of several rare-earth oxides formerly believed to be a single substance called didymia. Though not particularly valuable commercially, praseodymium is sometimes utilized in alloys for the flints of cigarette lighters and protective glass in goggles used by welders and glassblowers. In addition, praseodymium has been of significant scientific interest due to its unusual characteristic of suppressing superconductivity. The reason for its effect on superconductors is not yet fully understood, but some scientists argue that it has to do with a phenomenon known as hybridization, which may enable praseodymium to have a type of magnetic interaction with superconducting materials that the other rare-earth metals are unable to engage in.


© 1995-2013 by Michael W. Davidson and The Florida State University. All Rights Reserved. No images, graphics, software, scripts, or applets may be reproduced or used in any manner without permission from the copyright holders. Use of this website means you agree to all of the Legal Terms and Conditions set forth by the owners.
This website is maintained by our
Graphics & Web Programming Team
in collaboration with Optical Microscopy at the
National High Magnetic Field Laboratory.
Last modification: Monday, Jan 05, 2004 at 05:42 PM
Access Count Since September 19, 1995: 25112
Microscopes provided by:
Visit the Nikon website. Visit the Olympus Microscopy Resource Center website.