europium

Definitions

  • WordNet 3.6
    • n europium a bivalent and trivalent metallic element of the rare earth group
    • ***
Webster's Revised Unabridged Dictionary
    • n Europium (Chem) A metallic element of the rare-earth group (Lanthanide series), discovered spectroscopically by Demarcay in 1896. Symbol, Eu; atomic number 63; at. wt., 151.965 (C=12.011); valence = +2 or +3.
    • ***
Century Dictionary and Cyclopedia
    • n europium A supposed new element announced by Demarçay in 1901, obtained in very small quantity as oxid, sulphate, etc., from samar-skite and monazite. Its compounds have been further examined by Urbain and Lacombe. It is characterized by a special spark-spectrum, and also by a phosphorescent spectrum, and appears to be intermediate between samarium and gadolinium, with an atomic weight of about 151.79.
    • ***

Etymology

Webster's Revised Unabridged Dictionary
NL.; Europe, + -ium, as in aluminium,

Usage


In news:

Instead, they hope to strike neodymium, europium and other exotic-sounding rare earth metals -- a group of 15 elements, plus two others with similar properties, used in clean-energy technology, military hardware and cell phones.
***

In science:

We present results for the chemical evolution of the Milky Way including predictions for elements from Deuterium to Europium. A comparison with the most accurate and recent data allows us to draw important conclusions on stellar nucleosynthesis processes as well as on mechanisms of galaxy formation.
The chemical evolution of the Milky Way: from light to heavy elements
The evolution of Europium in tthe solar vicinity (Cescutti et al. 2006).
The chemical evolution of the Milky Way: from light to heavy elements
Spin-filter ef fect of ferromagnetic europium sulfide tunnel barriers.
Experimental Quantum Computation with Nuclear Spins in Liquid Solution
Roederer derived isotopic fractions of europium, samarium and neodymium in two metal-poor giants with apparently different nucleosynthetic histories, extending the examination of the neutron-capture origin of multiple rareearth elements in metal poor stars to the isotopic level for the first time.
First Stars III Conference Summary
Doyle has promoted the technique of buffer-gas cooling, first on atoms like europium and chromium , and next on the CaH molecule [100].
Formation and interactions of cold and ultracold molecules: new challenges for interdisciplinary physics
No. 96), and berkelium (No. 97) signify that these elements are the chemical homologs of europium (No.
Discovery of Isotopes of the Transuranium Elements with 93 <= Z <= 98
Degenerate antiferromagnetic semiconductors are obtained by strongly doping antiferromagnetic semiconductors (e.g., europium chalcogenides or lanthanium manganites).
Phase diagram as a function of temperature and magnetic field for magnetic semiconductors
Crystals containing stoichiometric amounts of europium can still exhibit relatively long coherence times so long as the inter-europium space is large within the crystal .
Selecting ensembles for rare earth quantum computation
The europiums close to a defect would provide one member of an ensemble of an identical groups of europium ions.
Selecting ensembles for rare earth quantum computation
The fact that they are shifted out of resonance with the bulk europiums ions should also increase their coherence times.
Selecting ensembles for rare earth quantum computation
The theoretical results by Busso et al. (2001) suggest negligible Europium production in the s-process and therefore we neglected this component in our work.
Abundance gradients in the Milky Way for alpha elements, Iron peak elements, Barium, Lanthanum and Europium
***