Energy dispersive x-ray diffraction of charge density waves via chemical filtering
Energy dispersive x-ray diffraction of charge density waves via chemical filtering
复制标题
通过化学过滤进行电荷密度波的能量色散 X 射线衍射
DOI：
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发表时间：
2005
期刊：
影响因子：
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通讯作者：
H. Mao
中科院分区：
文献类型：
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作者：
Yejun Feng;M. Somayazulu;R. Jaramillo;T. Rosenbaum;E. Isaacs;Jingzhu Hu;H. Mao
相变的压力调谐是凝聚态物理中的一个强大工具，它允许在保持基本对称性的同时进行高分辨率研究。在最高气压下，能量色散X射线衍射法(EDXD)已成为几何约束金刚石压腔实验的重要手段。我们开发了一种补充EDXD的化学过滤技术，允许研究弱至晶体布拉格衍射的10^(-4)的卫星峰。特别地，我们绘制了元素铬单晶的无公度电荷密度波衍射的温度依赖关系图。这项技术为未来在广泛的固态系统中进行多体效应的GPA压力研究提供了可能性。
Pressure tuning of phase transitions is a powerful tool in condensed matter physics, permitting high-resolution studies while preserving fundamental symmetries. At the highest pressures, energy dispersive x-ray diffraction (EDXD) has been a critical method for geometrically confined diamond anvil cell experiments. We develop a chemical filter technique complementary to EDXD that permits the study of satellite peaks as weak as 10^(-4) of the crystal Bragg diffraction. In particular, we map out the temperature dependence of the incommensurate charge density wave diffraction from single-crystal, elemental chromium. This technique provides the potential for future GPa pressure studies of many-body effects in a broad range of solid state systems.