On the Possibility of Bose-Einstein Condensation and the Superfluidity of Frenkel Excitons

✍ Scribed by J. P. Šetrajčić; D. V. Kapor; D. Mirjanić

• Publisher: John Wiley and Sons
• Year: 1984
• Tongue: English
• Weight: 270 KB
• Volume: 124
• Category: Article
• ISSN: 0370-1972
• DOI: 10.1002/pssb.2221240125

✦ Synopsis

Abstract

The characteristic time of exciton relaxation due to phonons is estimated, and as it turns to be smaller than the exciton lifetime, it is concluded that Bose‐Einstein condensation is possible in the system of Frenkel excitons. It is further shown that kinematical interaction obtained in the Boson representation due to the Paulionic character of the excitonic operators, causes the superfluid excitation transfer through the crystal.