酉太藍在 Shpol'skii 矩陣質中第一激發態的 Zeeman 研究

Abstract

在本實驗中,我們量測了在5K的自由基鈦藍 (H2Pc) 和鉛鈦藍 (PdPc)的螢 光譜線,在不同磁場強度的定點下記錄螢光譜線位置的變化.吾人首先將H2 Pc和PdPc溶解在溶解度較大的1-氯捺中,在將溶液用正辛烷稀釋至 e-5M. 溶液先注入小玻璃容器中, 再固定於樣品固定器上,之後放入可調節溫度 和磁場強度的超導磁鐵中.因為H2Pc和PdPc的吸收共振光譜是在紅光範圍 較強,由一部Ar+雷射激發的染料雷射.當樣品在磁鐵中降至5K時,我們就可 記錄零磁場的螢光譜線位置,而後我們逐漸使磁場漸漸加大,記錄在不同磁 場下的螢光譜線位置.從上述記錄我們整理出螢光譜線位置和磁場的關係, 獲得我們Pc的角動量.實驗的結果顯示,H2Pc的角動量是3.7h/2*3.14 ,PdPc的角動量是3.8h/2*3.14 . We have measured the fluorescence band of PdPc and H2Pc in 1-ClN and n-octane solution in different magnetic fields at 5K. 1-ClN Solution of H2Pc and PdPc were mixed with n-octane to obtain a concertration of 0.00005M. The sample of solution kept in glass-cell was inserted and immersed in cryostat. Because the fluorescence of H2Pc and PdPc excited in special light sources, we used a Coherent dye laser pumped with an Ar+ laser. We get angular momentum of these samples. the angular momentum of H2Pc is 3.7h/2*3.14 and the angular momentum of PdPc is 3.8h/2*3.14 .