结合同步辐射和高达40特斯拉脉冲磁场的X射线衍射仪。

X-ray diffractometer combining synchrotron radiation and pulsed magnetic fields up to 40 T.

作者信息

Narumi Y, Kindo K, Katsumata K, Kawauchi M, Broennimann Ch, Staub U, Toyokawa H, Tanaka Y, Kikkawa A, Yamamoto T, Hagiwara M, Ishikawa T, Kitamura H

机构信息

ISSP, University of Tokyo, Kashiwa, Chiba 277-858, Japan.

出版信息

J Synchrotron Radiat. 2006 May;13(Pt 3):271-4. doi: 10.1107/S0909049506006972. Epub 2006 Apr 13.

DOI:10.1107/S0909049506006972

PMID:16645253

Abstract

A synchrotron X-ray diffractometer incorporating a pulsed field magnet for high fields up to 40 T has been developed and a detailed description of this instrument is reported. The pulsed field magnet is composed of two coaxial coils with a gap of 3 mm at the mid-plane for passage of the X-rays. The pixel detector PILATUS 100K is used to store the diffracted X-rays. As a test of this instrument, X-ray diffraction by a powder sample of the antiferromagnet CoO is measured below the Néel temperature. A field-dependent lattice distortion of CoO due to magnetostriction is observed up to 38 T.

摘要

已开发出一种结合了用于产生高达40 T强磁场的脉冲场磁体的同步加速器X射线衍射仪，并报告了该仪器的详细描述。脉冲场磁体由两个同轴线圈组成，在中平面处有3 mm的间隙以供X射线通过。像素探测器PILATUS 100K用于存储衍射的X射线。作为对该仪器的测试，在奈尔温度以下测量了反铁磁体CoO粉末样品的X射线衍射。观察到由于磁致伸缩导致的CoO晶格畸变与磁场有关，最高可达38 T。