YES Club活動(dòng)第18期

報(bào)告題目：Resonant Inelastic X-ray Scattering from correlated electron systems and unconventional High-Tc Superconductors

報(bào)告時(shí)間：2016年7月12日 上午10:30

報(bào)告地點(diǎn)：12號(hào)廳會(huì)議室

報(bào)告人：周克瑾博士（英國(guó)Diamond光源軟X射線(xiàn)共振非彈性散射先進(jìn)實(shí)驗(yàn)光束線(xiàn)首席科學(xué)家）

報(bào)告簡(jiǎn)介：Resonant inelastic X-ray scattering (RIXS) [1, 2] is a powerful bulk-sensitive photon-in / photon-out spectroscopic and scattering probe with elemental sensitivity for the electronic structure of condensed matter. It is a unique tool for studying low energy excitations in complex correlated systems, being direct-ly sensitive to charge-, orbital-, spin-, and lattice-degrees of freedom. Dedicated instrumentation for RIXS with ultra-high resolution in energy and momentum spaces has become available thereby enabling charac-terization of collective excitations such as orbitons, magnons and phonons. In this presentation I will give a brief introduction to RIXS technique and focus on the application in correlated electron systems and unconventional high-Tc superconductors [3-9]. The status of the next-generation RIXS facility at Dia-mond Light Source will be also updated during the talk.

References

[1] A.Kotani and S.Shin, Rev. Mod. Phys. 73, 203 (2001)

[2] Luuk J. P. Ament, M van Veenendaal, and T. P., Devereaux et al., Rev. Mod. Phys. 83, 705 (2011)

[3] M. Le Tacon, G. Ghiringhelli, and J. Chaloupka et al., Nature Phys. 7, 725 (2011)

[4] J. Schlappa, K. Wohlfeld, and K. J. Zhou et al. Nature 485, 82 (2012)

[5] M. P. M. Dean, R. S. Springell, and C. Monney et al., Nature Mater. 11, 850 (2012)

[6] K. J. Zhou, Y. B. Huang, and C. Monney et al., Nature commun. 4, 1470 (2013)

[7] G. Ghiringhelli, M. Le Tacon, M. Minola et al. Science, 337, 821 (2012)

[8] J. Kim, D. Casa, M.H. Upton, et al., Phys. Rev. Lett. 108, 177003 (2012)

[9] S. Johnston, C. Monney, V. Bisogni et al., Nature Commun. 7, 10563 (2016)