Photoinduced magnetization of a cobalt-iron cyanide

Osamu Sato, T. Iyoda, A. Fujishima, K. Hashimoto

Research output: Contribution to journalArticle

1507 Citations (Scopus)


Photoinduced magnetization was observed in a Prussian blue analog, K0.2Co1.4-[Fe(CN)6]·6.9H2O. An increase in the critical temperature from 16 to 19 kelvin was observed as a result of red light illumination. Moreover, the magnetization in the ferrimagnetic region below 16 kelvin was substantially increased after illumination and could be restored almost to its original level by thermal treatment. These effects are thought to be caused by an internal photochemical redox reaction. Furthermore, blue light illumination could be used to partly remove the enhancement of the magnetization. Such control over magnetic properties by optical stimuli may have application in magneto-optical devices.

Original languageEnglish
Pages (from-to)704-705
Number of pages2
Issue number5262
Publication statusPublished - May 3 1996
Externally publishedYes


All Science Journal Classification (ASJC) codes

  • General

Cite this

Sato, O., Iyoda, T., Fujishima, A., & Hashimoto, K. (1996). Photoinduced magnetization of a cobalt-iron cyanide. Science, 272(5262), 704-705.