Dynamic reflection and refraction of neutrons at the boundaries of matter characterized by a variable magnetic induction |
| |
Authors: | A. V. Kozlov A. I. Frank |
| |
Affiliation: | (1) Joint Institute for Nuclear Research, Dubna Moscow oblast, 141980, Russia;(2) Weizmann Institute of Science, Rehovot, 76100, Israel |
| |
Abstract: | Optical phenomena that arise in the interaction of a neutron wave with matter characterized by a variable interaction potential are considered. The time dependence of the potential is assumed to be due to a change in the magnetization vector in matter with time. Since the interaction in question is time-dependent, the neutron energy is not conserved. If a neutron interacts with a sample that has a plane boundary, only the neutron-velocity component orthogonal to the matter boundary changes. Thus, reflected waves are characterized by a reflection angle that is different from the angle of incidence. Waves transmitted through a plane sample can also change direction. The changes in the neutron energy and in the neutron-velocity direction are closely related to the reversal of the neutron-spin projection. The question of whether a slab featuring a rotating magnetization vector can be used as a spin flipper or as a coherent wave splitter is considered. |
| |
Keywords: | |
本文献已被 SpringerLink 等数据库收录! |
|