Characterization of Fine Structures in Electronic States by Raman Heterodyne Detection Using Optical Transition.

利用光跃迁通过拉曼外差检测表征电子态精细结构。

• 批准号: 07454158
• 负责人: KATO Tatsuhisa
• 金额: $ 5.18万
• 依托单位: Okazaki National Research Institutes
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (B)
• 财政年份: 1995
• 资助国家: 日本
• 起止时间: 1995 至 1996
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-07454158/
• 关键词: double resonance; magnetic resonance; electronic states; Raman beat; heterodyne; color centers; nuclear quadrupole; crystal sites; スピン副準位; 核スピン共鳴; 金属錯体

The quadrupole transitions of ^<139> La nuclei around Pr^<3+> doped in LaF_3 have been detected as an optical-rf induced coherent Raman beat on the Pr^<3+>^3H_4-^3P_0 transition (20925 cm^<-1>) at 1.5 K.Because the effective ^<141>Pr nuclear magnetic moment is smaller in the excited ^3P_0 state than in the ground state, the Pr-La interaction decreases upon Pr^<3+> optical excitation, which makes the La quadrupole transitions couple with the Pr optical transition. Four magnetically inequivalent La nuclei were observed, revealing different local environments of La atoms around impurity Pr^<3+> ions.

在掺有LaF_3的Pr^<3+>周围的^<139> La原子核在1.5 K下，在Pr^<3+>^3H_4-^3P_0跃迁（20925 cm^<-1>）上，以光学射频诱导的相干拉曼拍下发生了四极跃迁。由于激发^3P_0状态下的有效^<141>Pr核磁矩小于基态，Pr^<3+>光激发下Pr-La相互作用减小，使得La四极跃迁与Pr光跃迁耦合。观察到四个磁性不相等的La原子核，揭示了杂质Pr^<3+ b>离子周围La原子的不同局域环境。

项目成果

Michio Matsusita and Tatsuhisa Kato: "NUclear Quadrapole Rensonance of 139La around Pr^<3+> Doped in LaF_3Raman Heterodyne Derection Using Optical Transition of Pr^<3+> ions." Chemical Phystcs Letters. 273. 291-295 (1997)

Michio Matsusita 和 Tatsuhisa Kato：“利用 Pr^<3 > 离子的光跃迁，掺杂 LaF_3 拉曼外差偏转的 139La 周围 Pr^<3> 的核四极共振。”

Michio Matsushita and Tatsuhisa Kato: ""Nuclear Quadrpole Resonace of ^<139>La around Pr^<3+> Doped in LaF_3. Raman Heterodyne Detection Using Optical Transition of Pr^<3+> ions."" Chemical Physics Letters. Vol.273, (No.3,4). 291-295 (1997)

Michio Matsushita 和 Tatsuhisa Kato：“^<139>La 围绕 Pr^<3> 掺杂 LaF_3 的核四极共振。