Photoinduced charge transfer phase transition in cesium manganese hexacyanoferrate

Cesium manganese hexacyanoferrate, Cs 1.51 Mn [ Fe ( C N ) 6 ] , shows a thermal phase transition between Mn II - N C - Fe III [high-temperature (HT) phase] and Mn III - N C - Fe II [low-temperature (LT) phase] with phase transition temperatures of 170 K ( HT → LT ) and 230 K ( LT → HT ) . The LT ph...

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Bibliographic Details
Published inJournal of applied physics Vol. 101; no. 9; pp. 09E101 - 09E101-3
Main Authors Matsuda, Tomoyuki, Tokoro, Hiroko, Hashimoto, Kazuhito, Ohkoshi, Shin-ichi
Format Journal Article
LanguageEnglish
Published United States American Institute of Physics 01.05.2007
Subjects
CESIUM COMPOUNDS
CHARGE EXCHANGE
COERCIVE FORCE
CURIE POINT
CYANIDES
FERRATES
FERROMAGNETISM
LASERS
MAGNETIZATION
MANGANESE COMPOUNDS
MATERIALS SCIENCE
PHASE TRANSFORMATIONS
TEMPERATURE DEPENDENCE
TEMPERATURE RANGE 0000-0013 K
TEMPERATURE RANGE 0065-0273 K
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Summary:Cesium manganese hexacyanoferrate, Cs 1.51 Mn [ Fe ( C N ) 6 ] , shows a thermal phase transition between Mn II - N C - Fe III [high-temperature (HT) phase] and Mn III - N C - Fe II [low-temperature (LT) phase] with phase transition temperatures of 170 K ( HT → LT ) and 230 K ( LT → HT ) . The LT phase shows ferromagnetism with Curie temperature of 7 K and coercive field of 60 Oe . Irradiating with 532 nm laser light converts the LT phase into the photoinduced (PI) phase, which does not have spontaneous magnetization. The electronic state of the PI phase corresponds to that of the HT phase and the relaxation temperature from the PI to the LT phase is observed at 90 K .
ISSN:0021-8979
1089-7550
DOI:10.1063/1.2709760