Electron transfer between exchange-coupled ions in a mixed-valency compound

✍ Scribed by P.A. Cox

• Publisher: Elsevier Science
• Year: 1980
• Tongue: English
• Weight: 288 KB
• Volume: 69
• Category: Article
• ISSN: 0009-2614
• DOI: 10.1016/0009-2614(80)85076-7

✦ Synopsis

The m.ttrI\ elcmcnt for electron tramiier betseen t\ho magnettc tons 1s strongly mfluenccd by exchange coupltng A formula IS glbcn for the tntcnstty of an opttcal mtcrvalencc transItIon m such an e\changexoupled pau as a function of temperaturc. Compounds ha\lng atoms of a metalhc element m different oxldatlon states frequently show intense electromc 3bsorptron bands at low energy, which are presumed to result from electron transfer between the two nicral atoms [ 1.11 A well-known example IS Prusstan blue, KFerltFe1r(CN)6-.~H,0.