Phototunable Magnetism in Copper Octacyanomolybdate
Joint Authors
Source
Issue
Vol. 2014, Issue 2014 (31 Dec. 2014), pp.1-13, 13 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2014-05-08
Country of Publication
Egypt
No. of Pages
13
Main Subjects
Medicine
Information Technology and Computer Science
Abstract EN
We introduce copper molybdenum cyanides of general formula Cu2[Mo(CN)8]·nH2O, which can serve as optofunctional magnetic devices.
Their ground states generally stay paramagnetic down to temperatures of the K order but exhibit a spontaneous magnetization upon photoirradiation usually below a few tens of K.
To interest us still further, such a ferromagnetic stateinduced by blue-laser irradiation is demagnetized step by step through further application of red or near-infrared laser pulses.
We solve this intriguing photomagnetism.
The ground-state properties are fully revealed by means of a group-theoretical technique.
Taking account of experimental observations, we simulate applying pump laser pulses to a likely ground state and successfully reproduce both the magnetization and demagnetization dynamics.
We monitor the photorelaxation process through angle-resolved photoemission spectroscopy.
Electrons are fully itinerant in any of the photoinduced steady states, forming a striking contrast to the initial equilibrium state of atomic aspect.
The fully demagnetized final steady state looks completely different from the initial paramagnetism but bears good analogy to one of the possible ground states available with the Coulomb repulsion on Cu sites suppressed.
American Psychological Association (APA)
Ohara, Jun& Yamamoto, Shoji. 2014. Phototunable Magnetism in Copper Octacyanomolybdate. The Scientific World Journal،Vol. 2014, no. 2014, pp.1-13.
https://search.emarefa.net/detail/BIM-1050957
Modern Language Association (MLA)
Ohara, Jun& Yamamoto, Shoji. Phototunable Magnetism in Copper Octacyanomolybdate. The Scientific World Journal No. 2014 (2014), pp.1-13.
https://search.emarefa.net/detail/BIM-1050957
American Medical Association (AMA)
Ohara, Jun& Yamamoto, Shoji. Phototunable Magnetism in Copper Octacyanomolybdate. The Scientific World Journal. 2014. Vol. 2014, no. 2014, pp.1-13.
https://search.emarefa.net/detail/BIM-1050957
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1050957