Abstract
We report the X-ray irradiation dose dependence of the magnetic susceptibility in κ-(BEDT-TTF)2Cu[N(CN)2]Cl (κ-Cl) and β'-(BEDT-TTF)2ICl2 (β'-ICl 2). The Néel temperature of 27.5 K in κ-Cl reduces to 24.0 K after irradiation of 240 MGy, while that of 22.0K in β'-ICl 2 does not vary. Taking account of the suppressed amplitude of the dicyanamide vibration modes in the infrared spectra of the irradiated κ-Cl, we suggest that X-ray irradiation modifies the anion structure related to the CN group, which does not hold in β'-ICl2.
| Original language | English |
|---|---|
| Pages (from-to) | S244-S246 |
| Journal | Physica B: Condensed Matter |
| Volume | 405 |
| Issue number | 11 SUPPL. |
| DOIs | |
| Publication status | Published - 2010 Jun 1 |
Keywords
- Carrier doping
- Mott insulator
- X-ray irradiation
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics
- Electrical and Electronic Engineering
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Yoneyama, N., Sasaki, T., Kobayashi, N., Furukawa, K., & Nakamura, T. (2010). X-ray irradiation effect on magnetic properties of Dimer-Mott insulators: κ-(BEDT-TTF)2Cu[N(CN)2]Cl and β'-(BEDT-TTF) 2ICl2. Physica B: Condensed Matter, 405(11 SUPPL.), S244-S246. https://doi.org/10.1016/j.physb.2009.10.043