Temperature-Dependent Electron–Electron Interaction in Graphene on SrTiO3
作者： Hyejin Ryu , Jinwoong Hwang , Debin Wang , Ankit S Disa , Jonathan Denlinger
DOI: 10.1021/ACS.NANOLETT.7B01650
关键词:
摘要: The electron band structure of graphene on SrTiO3 substrate has been investigated as a function temperature. high-resolution angle-resolved photoemission study reveals that the spectral width at Fermi energy and velocity are comparable to those BN substrate. Near charge neutrality, energy-momentum dispersion exhibits strong deviation from well-known linearity, which is magnified temperature decreases. Such modification resembles characteristics enhanced electron–electron interaction. Our results not only suggest can be plausible candidate material for applications in graphene-based electronics but also provide possible route toward realization new type strongly correlated phases prototypical two-dimensional system via manipulation proper choice dielectric substrates.
acs.org
arxiv.org
harvard.edu
core.ac.uk 
sci-hub.se 参考文章(50)
Junwoo Son, Pouya Moetakef, Bharat Jalan, Oliver Bierwagen, Nicholas J. Wright, Roman Engel-Herbert, Susanne Stemmer, Epitaxial SrTiO3 films with electron mobilities exceeding 30,000 cm2 V(-1) s(-1). Nature Materials. ,vol. 9, pp. 482- 484 ,(2010) , 10.1038/NMAT2750
Choongyu Hwang, Cheol-Hwan Park, David A. Siegel, Alexei V. Fedorov, Steven G. Louie, Alessandra Lanzara, Direct measurement of quantum phases in graphene via photoemission spectroscopy Physical Review B. ,vol. 84, pp. 125422- ,(2011) , 10.1103/PHYSREVB.84.125422
A. Lanzara, A. V. Fedorov, S. Y. Zhou, A. K. Schmid, D. A. Siegel, F. El Gabaly, Self-doping effects in epitaxially grown graphene Applied Physics Letters. ,vol. 93, pp. 243119- ,(2008) , 10.1063/1.3028015
Dong Qian, Chun Lei Gao, Qi Kun Xue, Jian Feng Ge, Zhi Long Liu, Canhua Liu, Ying Liu, Ying Liu, Jin Feng Jia, Superconductivity above 100 K in single-layer FeSe films on doped SrTiO3 Nature Materials. ,vol. 14, pp. 285- 289 ,(2015) , 10.1038/NMAT4153
S. Das Sarma, Qiuzi Li, Graphene on SrTiO3 Solid State Communications. ,vol. 152, pp. 1795- 1799 ,(2012) , 10.1016/J.SSC.2012.07.011
Péter Nemes-Incze, Kwon Jae Yoo, Levente Tapasztó, Gergely Dobrik, János Lábár, Zsolt E. Horváth, Chanyong Hwang, László Péter Biró, Revealing the grain structure of graphene grown by chemical vapor deposition Applied Physics Letters. ,vol. 99, pp. 023104- ,(2011) , 10.1063/1.3610941
S. E. Rowley, L. J. Spalek, R. P. Smith, M. P. M. Dean, M. Itoh, J. F. Scott, G. G. Lonzarich, S. S. Saxena, Ferroelectric quantum criticality Nature Physics. ,vol. 10, pp. 367- 372 ,(2014) , 10.1038/NPHYS2924
Choongyu Hwang, David A Siegel, Sung-Kwan Mo, William Regan, Ariel Ismach, Yuegang Zhang, Alex Zettl, Alessandra Lanzara, None, Fermi velocity engineering in graphene by substrate modification Scientific Reports. ,vol. 2, pp. 590- ,(2012) , 10.1038/SREP00590
Miao Xia, Zirong Ye, Difei Xu, Binping Xie, Jiangping Hu, Xin Xie, Tao Xiang, Fei Chen, Donglai Feng, Juan Jiang, Qin Fan, Rui Peng, Tong Zhang, Yan Zhang, Haichao Xu, Shiyong Tan, Shiyong Tan, Xinchun Lai, Interface-induced superconductivity and strain-dependent spin density waves in FeSe/SrTiO3 thin films. Nature Materials. ,vol. 12, pp. 634- 640 ,(2013) , 10.1038/NMAT3654
Eryin Wang, Hao Ding, Alexei V. Fedorov, Wei Yao, Zhi Li, Yan-Feng Lv, Kun Zhao, Li-Guo Zhang, Zhijun Xu, John Schneeloch, Ruidan Zhong, Shuai-Hua Ji, Lili Wang, Ke He, Xucun Ma, Genda Gu, Hong Yao, Qi-Kun Xue, Xi Chen, Shuyun Zhou, Fully gapped topological surface states in Bi2Se3 films induced by ad-wave high-temperature superconductor Nature Physics. ,vol. 9, pp. 621- 625 ,(2013) , 10.1038/NPHYS2744