Probing Electron-Phonon Interactions Away from the Fermi Level with Resonant Inelastic X-Ray Scattering

Probing Electron-Phonon Interactions Away from the Fermi Level with Resonant Inelastic X-Ray Scattering
复制标题

利用共振非弹性 X 射线散射探测远离费米能级的电子-声子相互作用

DOI:
10.1103/physrevx.11.041052
复制
发表时间:
2021
期刊:
影响因子:
12.5
通讯作者:
Dashwood C
Dashwood C
中科院分区:
物理与天体物理1区
文献类型:
--
作者:
Dashwood C

文献摘要

参考文献

被引文献

相似文献

电子和晶格振动之间的相互作用对广泛的材料性质和应用负责。最近,人们对发展共振非弹性X射线散射(RIXS)作为测量电子-声子(-ph)相互作用的工具产生了相当大的兴趣。在这里,我们证明了RIXS探测声子和特定的电子状态之间的相互作用的能力,无论是接近,远离费米能级。我们在石墨上进行碳边RIXS测量,调整入射X射线能量以分别探测电子态和电子态的相互作用。我们的高分辨率数据揭示了多声子RIXS特征的详细结构,该特征直接编码了pH相互作用强度的动量依赖性。我们开发了一个绿色的功能方法来模拟这种结构,自然占的声子和相互作用强度的分散体,以及混合的声子动量在中间状态。该模型表明,光谱之间的差异可以完全解释的对比趋势的-ph相互作用通过布里渊区,集中在点的状态,而在所有的动量的状态是显着的。我们的研究结果推进解释声子激发RIXS和扩展其适用性作为探针的pH相互作用的一个新的范围外的平衡情况。
Interactions between electrons and lattice vibrations are responsible for a wide range of material properties and applications. Recently, there has been considerable interest in the development of resonant inelastic x-ray scattering (RIXS) as a tool for measuring electron-phonon (-ph) interactions. Here, we demonstrate the ability of RIXS to probe the interaction between phonons and specific electronic states both near to, and away from, the Fermi level. We perform carbon-edge RIXS measurements on graphite, tuning the incident x-ray energy to separately probe the interactions of theandelectronic states. Our high-resolution data reveal detailed structure in the multiphonon RIXS features that directly encodes the momentum dependence of the-ph interaction strength. We develop a Green’s-function method to model this structure, which naturally accounts for the phonon and interaction-strength dispersions, as well as the mixing of phonon momenta in the intermediate state. This model shows that the differences between the spectra can be fully explained by contrasting trends of the-ph interaction through the Brillouin zone, being concentrated at theandpoints for thestates while being significant at all momenta for thestates. Our results advance the interpretation of phonon excitations in RIXS and extend its applicability as a probe of-ph interactions to a new range of out-of-equilibrium situations.
关于石墨烯中的电子-声子相互作用
DOI: --
发表时间: 2013
期刊:
影响因子: --
作者:
B. S. Kandemir
通讯作者: B. S. Kandemir
DOI: 10.1073/pnas.2103696118
发表时间: 2020-02
期刊: Proceedings of the National Academy of Sciences
影响因子: --
作者:
D. Mazzone;D. Meyers;Yue Cao;J. G. Vale;C. D. Dashwood;Youguo Shi;A. James;N. Robinson;Jiaqi Lin;V. Thampy;Yoshikazu Tanaka;Allan S. Johnson;H. Miao;Ruitang Wang;Tadesse A. Assefa;Jungho Kim;D. Casa;R. Mankowsky;D. Zhu;R. Alonso-Mori;Sanghoon Song;H. Yavas;T. Katayama;M. Yabashi;Y. Kubota;S. Owada;Jian Liu;Junji Yang;R. Konik;I. Robinson;John P. Hill;D. McMorrow;M. Först;S. Wall;Xuerong Liu;M. Dean
通讯作者: D. Mazzone;D. Meyers;Yue Cao;J. G. Vale;C. D. Dashwood;Youguo Shi;A. James;N. Robinson;Jiaqi Lin;V. Thampy;Yoshikazu Tanaka;Allan S. Johnson;H. Miao;Ruitang Wang;Tadesse A. Assefa;Jungho Kim;D. Casa;R. Mankowsky;D. Zhu;R. Alonso-Mori;Sanghoon Song;H. Yavas;T. Katayama;M. Yabashi;Y. Kubota;S. Owada;Jian Liu;Junji Yang;R. Konik;I. Robinson;John P. Hill;D. McMorrow;M. Först;S. Wall;Xuerong Liu;M. Dean
共振非弹性 X 射线散射声子激发 Franck-Condon 模型的推广
DOI: 10.1103/physrevb.101.214307
发表时间: 2020
期刊: Physical Review B
影响因子: 3.7
作者:
A. Geondzhian;K. Gilmore
通讯作者: K. Gilmore
利用共振非弹性 X 射线散射观察声子
DOI: 10.1088/0953-8984/22/48/485601
发表时间: 2010
期刊: Journal of Physics: Condensed Matter
影响因子: --
作者:
Hasan Yavaş;Hasan Yavaş;M. V. Veenendaal;M. V. Veenendaal;J. V. D. Brink;L. Ament;A. Alatas;Bogdan M. Leu;M. Apostu;N. Wizent;Günter Behr;W. Sturhahn;H. Sinn;E. Alp
通讯作者: E. Alp
DOI: 10.1073/pnas.2001755117
发表时间: 2020-07-14
影响因子: 11.1
作者:
Li, Jiemin;Nag, Abhishek;Zhou, Ke-Jin
通讯作者: Zhou, Ke-Jin