| Autor: |
Kazuhiro Kudo, Masakazu Nakamura, Hiroshi Yamauchi, Shigekazu Kuniyoshi, Mitsutoshi Hanada, Masatoshi Sakai |
| Jazyk: |
angličtina |
| Rok vydání: |
2012 |
| Předmět: |
|
| Zdroj: |
Crystals, Vol 2, Iss 3, Pp 730-740 (2012) |
| Druh dokumentu: |
article |
| ISSN: |
2073-4352 |
| DOI: |
10.3390/cryst2030730 |
| Popis: |
A gate-induced thermally stimulated current (TSC) on β′-(BEDT-TTF)(TCNQ) crystalline FET were conducted to elucidate the previously observed ferroelectric-like behaviors. TSC which is symmetric for the polarization of an applied VPG and has a peak at around 285 K was assigned as a pyroelectric current. By integrating the pyroelectric current, temperature dependence of the remnant polarization charge was obtained and the existence of the ferroelectric phase transition at 285 K was clearly demonstrated. We have tentatively concluded that the phase transition between dimer Mott insulator and charge ordered phase occurred at around the interface of organic crystal and substrate. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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