Positronium in alkanes at high pressure of argon and nitrogen

摘要：

Positron lifetime spectra in some n-alkanes CnH2n+2 were measured as a function of temperature and pressure. Majority of measurements was done for n-nonadecane. Three kinds of measurements were performed: without gas penetration to the sample, with pressure produced by penetrating gas: argon or nitrogen. Solid alkanes (odd numbered with n>9, and even-numbered with n>20) exist in two phases: low-temperature rigid crystal, and waxy rotator phase preceding melting. PALS method was used to observe the phase transition points.

作者: B.Zgardzińska T.Goworek J.Wawryszczuk

作者单位: Institute of Physics,Maria Curie Sklodowska University,20-031 Lublin,Poland

会议类型: 国际会议

会议名称: 第九届国际正电子与正电子素国际会议(9th International Workshop on Positron and Positronium Chemistry)(PPC–9)

会议地点: 武汉

会议语种:英文

页码: 123

在线出版日期: 2008-05-11（万方平台首次上网日期，不代表论文的发表时间）