Librational “soft” mode around the 240 K phase transition in thallium azide (TIN3)

✍ Scribed by Zafar Iqbal; C.W. Christoe

• Publisher: Elsevier Science
• Year: 1974
• Tongue: English
• Weight: 393 KB
• Volume: 29
• Category: Article
• ISSN: 0009-2614
• DOI: 10.1016/0009-2614(74)85106-7

✦ Synopsis

The remarkable "softening" of a librational mode in thulium azide (TIN,) around its 240 K phase trz-nsition has been observed by Fkman spectroscopy. Arhn-r~onic coupling between this mode 2nd the rotational displacerr,ent parameter of the transition is proposed in terms of the theoretical model of Chihnra et al.