Instrumentation for Materials Research

该奖项为一种新的浮子区晶体生长炉提供了部分支持，该炉将为材料研究提供优质样品。这个熔炉使用来自卤素灯的高强度光，聚焦在垂直定向的多晶进料棒上，熔化棒中的一小块材料。熔化区通过表面张力固定在棒上。杆相对于聚焦光的位置缓慢平移，沿着杆的长度移动热区。这可以防止材料与坩埚或容器接触时受到污染，这对于研究本征电子和磁性很重要。这种多用途的熔炉将为具有不同化学性质的各种材料生长晶体。%%%%该设备将为基础材料性能研究提供优质材料。这将增加我们对复杂过渡金属氧化物的理解，包括磁性和超导性，并将有助于超导和磁性器件技术。＊＊＊

9704553 Cava This award provides partial support for a new float zone crystal growth furnace which will provide suprior samples for materials research. This furnace employs high intensity light from halogen lamps, focused on a vertically oriented polycrystalline feed rod, to melt a small zone of material in the rod. The molten zone is held in place on the rod by surface tension. The rod is slowly translated with respect to the position of the focused light, moving the hot zone along the length of the rod. This prevents contamination of the material from contact with a crucible or container, which is important for studying intrinsic electronic and magnetic properties. This versatile furnace will grow crystals for a wide range of materials with different chemistries. %%%% This equipment will provide superior materials for fundamental materials properties studies. This will increase our understanding of complex transition metal oxides, both magnetic and superconducting, and will contribute to the superconducting and magnetic device technology. ***