Pressure-Induced Phase Transitions in Triplet-Exciton Crystals
- 1 August 1965
- journal article
- research article
- Published by AIP Publishing in The Journal of Chemical Physics
- Vol. 43 (3) , 953-957
- https://doi.org/10.1063/1.1696876
Abstract
The pressure dependence of the exchange‐narrowed triplet‐exciton magnetic resonance in (φ3PCH3)+‐(TCNQ)2− and (φ3AsCH3)+(TCNQ)2− has been observed at 170 Mc/sec in the ranges 1–9 kbar, and 220°—362°K. Pressure‐induced phase transitions in these salts are reported. The observed p—T phase diagram for (φ3AsCH3)+(TCNQ)2− can be explained remarkably well in terms of an elementary theory of non‐interacting triplet excitons.Keywords
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