标题： 低温高磁场X射线衍射装置的开发 显示英文标题

标题： Development of Low Temperature and High Magnetic Field X-Ray Diffraction Facility

摘要： 材料科学在多功能材料（MFM）方面的当前进展对理解其性质的微观起源提出了挑战。大多数此类MFM都具有磁弹性关联。为了研究其基本机制，因此有必要在磁场存在的情况下研究结构特性。鉴于此，印度印多尔的CSR开发了一种独特的先进设施，即低温高磁场（LTHM）粉末X射线衍射（XRD）。该装置采用对称布拉格布伦纳几何结构，使用来自旋转阳极源的平行入射X射线束，功率为17 kW。利用此装置可以在非标准条件下进行结构研究，即在低温（2-300 K）和高磁场（+8至-8 T）下。可用的散射角度范围从5{\deg }到115{\deg } 2{\theta }，分辨率优于0.1{\deg }。使用硅样品检查了该装置的正常运行。磁场对结构特性的影响已在Pr0.5Sr0.5MnO3样品上得到展示。观察到了磁场诱导相变的明显影响。此外，也观察到了零场冷却和场冷却条件的影响。 显示英文摘要

摘要： The current progress of materials science regarding multifunctional materials (MFM) has put forward the challenges to understand the microscopic origin of their properties. Most of such MFMs have magneto-elastic correlations. To investigate the underlying mechanism, it is therefore essential to investigate the structural properties in the presence of magnetic field. Keeping this in view low temperature and high magnetic field (LTHM) powder x-ray diffraction (XRD), a unique state-of-art facility in India has been developed at CSR Indore. This setup works on symmetric Bragg Brentano geometry using a parallel incident x-ray beam from a rotating anode source working at 17 kW. Using this one can do structural studies at non-ambient conditions i.e. at low- temperatures (2-300 K) and high magnetic field (+8 to -8 T). The available scattering angle ranges from 5{\deg} to 115{\deg} 2{\theta} with a resolution better than 0.1{\deg}. The proper functioning of the setup has been checked using Si sample. The effect of magnetic field on the structural properties has been demonstrated on Pr0.5Sr0.5MnO3 sample. Clear effect of field induced phase transition has been observed. Moreover, the effect of zero field cooled and field cooled conditions is also observed.