POWRE: Enhancement of a Time-Domain Terahertz Spectrometer for Studying Condensed Matter Systems

9753227公园这个项目通过使用太赫兹光谱学，寻求对处于凝聚态物理研究前沿的材料的新知识和理解。令人感兴趣的材料包括，例如，最近发现的一种新化合物，它包含12个锰原子的团簇，总自旋为10。观察到了自旋的量子隧道效应，由于自旋分裂能级被1.2太赫兹的能量分开，太赫兹光谱非常适合于表征这些能级。在远低于测量频率的温度下进行这种光谱的能力对于研究其他系统也很重要，例如半导体纳米晶体的振动模式、高温超导体中的准粒子散射率以及具有极高电子有效质量的材料中的Drude峰。%这是根据妇女在研究和教育中的职业机会(POWRE)计划提供的研究增强补助金。这项研究将在基础水平上贡献材料科学的基础知识。该计划的一个重要特点是通过本科生参与研究来整合研究和教育。***

9753227 Parks This project seeks new knowledge and understanding of materials that are at the forefront of condensed matter physics research through the use of terahertz spectroscopy. Materials of interest include, for example, a new compound recently discovered that contains clusters of twelve manganese atoms with a total spin of 10. Quantum tunneling of the spin was observed, and because the spin-split levels are separated by energies of 1.2 THz, terahertz spectroscopy is well suited to characterizing these levels. Capability for doing this spectroscopy at temperatures well below the measurement frequency is important for studying other systems as well, such as vibrational modes of semiconductor nanocrystals, quasiparticle scattering rates in high temperature superconductors, and Drude peaks in materials with extremely high electronic effective masses. %%% This is a research enhancement grant made under the Professional Opportunities for Women in Research and Education (POWRE) program. The research will contribute basic materials science knowledge at a fundamental level. An important feature of the program is the integration of research and education through undergraduate student participation in research. ***