ferromagnetic-antiferromagnetic phase transition
21Hematite — For other uses, see Hematite (disambiguation). Hematite Hematite (blood ore) from Michigan (unknown scale) General Category …
22Iron(III) oxide — Iron(III) oxide …
23Orthoferrite — An orthoferrite is any of a class of chemical compounds with the formula RFeO3 (where R is one or more rare earth elements). Orthoferrites have an orthorhombic crystal structure with a space group Pbnm and most are weakly ferromagnetic.[1] At the …
24rock — rock1 rockless, adj. rocklike, adj. /rok/, n. 1. a large mass of stone forming a hill, cliff, promontory, or the like. 2. Geol. a. mineral matter of variable composition, consolidated or unconsolidated, assembled in masses or considerable… …
25Rock — /rok/, n. a male given name. * * * I In geology, a naturally occurring and coherent aggregate of minerals. The three major classes of rock igneous, sedimentary, and metamorphic are based on the processes that formed them. These three classes are… …
26Ytterbium — Yb redirects here. For the unit of information, see Yottabit. thulium ← ytterbium → lutetium ↑ Yb ↓ No …
27rare-earth element — /rair errth /, Chem. any of a group of closely related metallic elements, comprising the lanthanides, scandium, and yttrium, that are chemically similar by virtue of having the same number of valence electrons. Also called rare earth metal. [1955 …
28Molecule-based magnets — are a class of materials capable of displaying ferromagnetism. This class expands the materials properties typically associated with magnets to include low density, transparency, electrical insulation, and low temperature fabrication, as well as… …
