Proton relaxation and tunneling levels of NH4+ ions in an (NH4)2SnBr6, single crystal

✍ Scribed by L.P. Ingman; M. Punkkinen; E.E. Ylinen; C. Dimitropoulos

• Publisher: Elsevier Science
• Year: 1986
• Tongue: English
• Weight: 416 KB
• Volume: 125
• Category: Article
• ISSN: 0009-2614
• DOI: 10.1016/0009-2614(86)85097-7

✦ Synopsis

Librational tunneling levels of NH, + ions in an (NH,),SnBr, single crystal were determined by studying the proton Zeeman relaxation. The relaxation rate speeds up when any of the tunnel frequencies vI equals n va (n = f , 1, 2). where v0 is the proton resonance frequency. The energy separation between the A and T levels is about 33 MHz and the splitting of the 3T manifold is 4.6 MHz or less at 20 K. The temperature dependence of the splittings was also observed.