Abstract
Two Brookhaven experimenters, John D. Axe and Gen Shirane, have used inelastic neutron scattering to detect the influence of the superconducting energy gap upon phonon lifetimes in Nb3Sn. Speaking at the January meeting of the American Physical Society in New York, Axe said their results yield estimates of the superconducting energy gap and the size and anisotropy of the electron‐phonon coupling. Axe and Shirane feel that their method of using inelastic neutron scattering will be useful in studying lowlying electron excitations in superconductors.
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