氙离子注入氯化钠晶体零声子跃迁和化学位移

Zero Phonon Transitions and Chemical Shifts of NaCl Crystals Implanted with Xe Ions

经 36 ke V Xe+注入 ,可在 Na Cl晶体表面产生 F、R1 、R2 和 M等色心。在 10 K温度下的吸收光谱中观测到位于 6 32 .1nm波长处的 R2 色心的零声子线 ,并在不同温度下对零声子线的光谱特性和热稳定性进行了研究。利用 NMR方法 ,首次观测到经 Xe+ ,注入 Na Cl晶体中 2 3 Na的化学位移。经 Xe+ 注入的 Na Cl晶体中 2 3 Na相对于未注入 Na Cl晶体中 2 3 Na的化学位移为 17× 10 - 6 ,预示 Xe+注入的 Na Cl晶体中固态 Na Xe分子的形成。

WT5”BZ]:F,R 1,R 2 and M color centers can be created in the surface of NaCl crystals implanted with Xe + of 36 keV energy.A zero phonon line at 632.1 nm wavelength belonged to R 2 color center are observed in the absorption spectra of the NaCl crystals measured at 10 K temperature.The spectral properties and thermal stabilities of the zero phonon line are investigated at different temperatures.The chemical shifts of the 23 [KG3/5]Na in Xe + implanted NaCl crystals are observed for the first time.The chemical shifts of the 23 [KG3/5]Na in the Xe + implanted NaCl crystals relative to the 23 [KG3/5]Na in unimplanted NaCl crystals are 17×10 -6 ,which indicates that the NaXe molecules in the implanted NaCl crystals are formed. [WT5”HZ]