Numéro
J. Phys. Colloques
Volume 35, Numéro C6, Décembre 1974
International Conference on the Applications of the Mössbauer Effect
Page(s) C6-633 - C6-633
DOI https://doi.org/10.1051/jphyscol:19746139
International Conference on the Applications of the Mössbauer Effect

J. Phys. Colloques 35 (1974) C6-633-C6-633

DOI: 10.1051/jphyscol:19746139

INVESTIGATION OF THE PHASE TRANSITION IN PHTHALOCYANINE USING THE MÖSSBAUER EFFECT

Dr. B. DUDREVA1, Dr. R. PIRINTCHIEVA1 and Dr. S. GRANDE2

1  Institute of Civil Engineering, Dep. of Physics, Sofia, Bulgaria
2  Karl-Marx-University, Section Physik, Leipzig, DDR


Résumé
L'effet Mössbauer a été utilisé pour étudier la transition de phase à proximité de la température ambiante d'une solution solide de phthalocyanine sans métal (H2Pc) et de phthalocyanine contenant du fer (PePc) : 9 H2Pc-1 FePc, transition qui est semblable aux transitions de phase ferroélectriques. La dépendance thermique des paramètres du spectre Mössbauer entre - 160 et + 160 °C est également donnée. Les résultats obtenus sont discutés et comparés avec les données de la résonance γ dans FePc.


Abstract
The Mössbauer effect has been used for investigation of the phase-transition in the region of the room temperature in a solid solution of metal-free H2Pc and iron phthalocyanine FePc : 9 H2Pc-1 FePc, showing properties, similar to the ferroelectric phase transitions. The temperature dependences of the parameters of the Mössbauer spectrum in the range - 160-+ 160 °C are given as well. The results from the investigation were discussed and compared with the data from γ-resonance in FePc.


Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.

Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.

Initial download of the metrics may take a while.