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首页> 外文期刊>Journal of Experimental and Theoretical Physics >Neutron Spin Rotation at Laue Diffraction in a Weakly Deformed Transparent Crystal with No Center of Symmetry
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Neutron Spin Rotation at Laue Diffraction in a Weakly Deformed Transparent Crystal with No Center of Symmetry

机译：中子旋转在Laue衍射时的弱变形透明晶体，没有对称中心

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摘要

The effect of neutron spin rotation at Laue diffraction in a weakly deformed neutron-transparent noncentrosymmetric crystal has been described theoretically and studied experimentally. The effect is due to the bending of a Kato trajectory of the neutron in the deformed crystal. At a certain type of deformation, one of two neutron waves excited at Laue diffraction, which propagate in opposite crystal fields in the crystal with no center of symmetry, leaves the crystal. As a result, the spin of the remaining neutron wave is rotated by a certain angle with respect to initial direction due to the interaction of the magnetic moment of a moving neutron with the crystalline electric field. This effect is absent in an undeformed perfect crystal, where only the depolarization of a beam occurs because both waves in opposite electric fields have the same amplitude. A method has been developed for controlled deforming the perfect single crystal by creating a temperature gradient in it. Thereby, a new possibility of measuring electric fields acting on a neutron in noncentrosymmetric crystals, as well as a method of controlling these fields in experiments on studying the fundamental properties of the neutron, has been implemented.
机译：在理论上描述了在弱变形中子 - 透明的非团体晶体中Laue衍射在Laue衍射时的效果并通过实验研究。效果是由于变形晶体中的中子的KATO轨迹的弯曲。在某种类型的变形上，在Laue衍射时激发的两个中子波之一，其在晶体中的相对的晶体场中，没有对称的核心，留下晶体。结果，由于移动中子的磁矩与结晶电场的相互作用，剩余中子波的旋转通过相对于初始方向而旋转一定的角度。这种效果在未变形的完美晶体中不存在，其中仅发生光束的去极化，因为相对电场中的两个波具有相同的幅度。通过在其中产生温度梯度来开发一种用于控制变形的完美单晶的方法。由此，实施了在非浓对称晶体中作用在中子上的电场的新可能性，以及在实验中控制这些领域的方法已经实施了研究中子的基本特性。

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