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APS » Journals » Phys. Rev. Lett. » Volume 46 » Issue 4
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Phys. Rev. Lett. 46, 253–257 (1981)

Discovery of a Neutral-to-Ionic Phase Transition in Organic Materials

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J. B. Torrance*, J. E. Vazquez, J. J. Mayerle, and V. Y. Lee
IBM Research Laboratory, San Jose, California 95193

Received 25 August 1980; published in the issue dated 26 January 1981

A systematic study of mixed stacked organic charge-transfer compounds shows that these materials are either neutral or ionic and that they range from being near the neutral-ionic boundary to being far away. Under pressure, several neutral compounds near this boundary are found to undergo a reversible phase transition to an ionic ground state. This is the first observation of a neutral-to-ionic transition in any kind of material.

© 1981 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevLett.46.253
DOI:
10.1103/PhysRevLett.46.253
PACS:
61.50.Lt, 72.80.Le

*On leave from January to September 1981 at Physics Laboratory III, The Technical University of Denmark, DK-2800 Lyngby, Denmark. Kindly address correspondence in care of Dr. C. S. Jacobsen.

 
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