Virginia TechLi, M. C.2014-05-072014-05-071975-10Li, M. C., "Crystal scattering of two coherent neutron beams," Phys. Rev. B 12, 3150 DOI: http://dx.doi.org/10.1103/PhysRevB.12.31500163-1829http://hdl.handle.net/10919/47821The crystal scattering of two coherent neutron beams is discussed. It is found that the conventional pair correlation function used in single-beam scattering is insufficient to describe the scattering of two coherent neutron beams. A generalized pair correlation function with unequal momentum transfer is introduced. It is found that the energy exchange between vibrational quanta of the crystal and incident neutrons leads to a modification of the scattering amplitude. Through the scattering of two coherent neutron beams one is able to measure directly the phase of the scattering amplitude.en-USIn Copyrightphysics, condensed matterArticle - Refereedhttp://journals.aps.org/prb/abstract/10.1103/PhysRevB.12.3150https://doi.org/10.1103/PhysRevB.12.3150