摘要:
Short wave length spin waves excited electrically by metallic contact can also diffuse over distances of 40 µm, even at room temperature, demonstrating the potential of using spin waves as information carriers in spintronic applications. The crucial parameters are magnon-phonon interaction in ferromagnetic insulator and spin mixing conductance of ferromagnet(F)|normal metal(N) interfaces. However, the spin-mixing conductance is a purely nonrelativistic concept, while there is mounting evidence that spin-orbit interactions at interfaces generate additional spin-flips and spin-orbit torques. We have solved this issue by introducing an “effective” spin mixing conductance for weakly relativistic materials. First ab initio results on ferrite|metal interface indeed indicate an enhancement that can be very significant for selected crystal orientations. Magnon-phonon interaction in YIG is also carefully calculated based on realistic electronic structure.

个人简历（简介）：
夏钶 ：1989南京大学物理系磁学专业毕业。1994中山大学物理系硕士,研究方向为穆斯堡尔谱。1997年南京大学理学博士，研究方向为磁性薄膜物理。1998至2001年任荷兰特温特大学应用物理系博士后, 2001年至2002年美国北卡罗来那州立大学物理系博士后,研究方向计算材料物理。2002年7月加入中国科学院物理研究所。同年入选中科院百人计划。2008获自然科学基金委杰出青年基金资助。2009年任北京师范大学物理系教授。主要研究兴趣包括计算材料物理、自旋电子学、纳米体系电子输运理论。 在国际重大学术刊物上发表文章约80篇。