|
|
Doping-driven orbital-selective Mott transition in multi-band Hubbard models with crystal field splitting |
Yilin Wang(王义林)1, Li Huang(黄理)2, Liang Du(杜亮)3, Xi Dai(戴希)1 |
1. Beijing National Laboratory for Condensed Matter Physics, and Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China;
2. Science and Technology on Surface Physics and Chemistry Laboratory, Jiangyou 621908, China;
3. Department of Physics, The University of Texas at Austin, Austin, TX 78712, USA |
|
|
Abstract We have studied the doping-driven orbital-selective Mott transition in multi-band Hubbard models with equal band width in the presence of crystal field splitting. Crystal field splitting lifts one of the bands while leaving the others degenerate. We use single-site dynamical mean-field theory combined with continuous time quantum Monte Carlo impurity solver to calculate a phase diagram as a function of total electron filling N and crystal field splitting Δ. We find a large region of orbital-selective Mott phase in the phase diagram when the doping is large enough. Further analysis indicates that the large region of orbital-selective Mott phase is driven and stabilized by doping. Such models may account for the orbital-selective Mott transition in some doped realistic strongly correlated materials.
|
Received: 04 November 2015
Revised: 18 December 2015
Accepted manuscript online:
|
PACS:
|
71.30.+h
|
(Metal-insulator transitions and other electronic transitions)
|
|
71.28.+d
|
(Narrow-band systems; intermediate-valence solids)
|
|
71.10.Fd
|
(Lattice fermion models (Hubbard model, etc.))
|
|
Fund: Project supported by the National Natural Science Foundation of China (Grant No. 2011CBA00108) and the National Basic Research Program of China (Grant No. 2013CB921700). |
Corresponding Authors:
Xi Dai
E-mail: daix@iphy.ac.cn
|
Cite this article:
Yilin Wang(王义林), Li Huang(黄理), Liang Du(杜亮), Xi Dai(戴希) Doping-driven orbital-selective Mott transition in multi-band Hubbard models with crystal field splitting 2016 Chin. Phys. B 25 037103
|
[1] |
Imada M, Fujimori A and Tokura Y 1998 Rev. Mod. Phys. 70 1039
|
[2] |
Georges A, Kotliar G, Krauth W and Rozenberg M J 1996 Rev. Mod. Phys. 68 13
|
[3] |
Kotliar G, Savrasov S Y, Haule K, Oudovenko V S, Parcollet O and Marianetti C A 2006 Rev. Mod. Phys. 78 865
|
[4] |
Anisimov V I, Nekrasov I A, Kondakov D E, Rice T M and Sigrist M 2002 Eur. Phys. J. B 25 191
|
[5] |
Koga A, Kawakami N, Rice T M and Sigrist M 2004 Phys. Rev. Lett. 92 216402
|
[6] |
Koga A, Kawakami N, Rice T M and Sigrist M 2005 Phys. Rev. B 72 045128
|
[7] |
de'Medici L, Georges A and Biermann S 2005 Phys. Rev. B 72 205124
|
[8] |
Ferrero M, Becca F, Fabrizio M and Capone M 2005 Phys. Rev. B 72 205126
|
[9] |
Arita R and Held K 2005 Phys. Rev. B 72 201102(R)
|
[10] |
Knecht C, Blümer N and van Dongen P G J 2005 Phys. Rev. B 72 081103(R)
|
[11] |
Liebsch A 2003 Phys. Rev. Lett. 91 226401
|
[12] |
Liebsch A 2004 Phys. Rev. B 70 165103
|
[13] |
Koga A, Kawakami N, Rice T M and Sigrist M 2005 Physica B 1366 359
|
[14] |
Inaba K, Koga A, Suga S and Kawakami N 2005 J. Phys. Soc. Jpn. 74 2393
|
[15] |
de'Medici L, Hassan S.R, Capone M and Dai X 2009 Phys. Rev. Lett. 102 126401
|
[16] |
Kita T, Ohashi T and Kawakami N 2011 Phys. Rev. B 84 195130
|
[17] |
Koga A and Inaba K 2007 J. Phys. Soc. Jpn. 76 094712
|
[18] |
Jakobi E, Blümer N and Dogen P 2009 Phys. Rev. B 80 115109
|
[19] |
Jakobi E, Blümer N and Dogen P 2013 Phys. Rev. B 87 205135
|
[20] |
Werner P and Millis A J 2007 Phys. Rev. Lett. 99 126405
|
[21] |
Werner P, Gull E, and Millis A J 2009 Phys. Rev. B 79 115119
|
[22] |
Rincón J, Adriana M, Gonzalo, A and Elbio D 2014 Phys. Rev. B 90 241105
|
[23] |
Rincón J, Adriana M, Gonzalo, A and Elbio D 2014 Phys. Rev. Lett. 112 106405
|
[24] |
Werner P, Comanac A, de'Medici L, Troyer M and Millis A J 2006 Phys. Rev. Lett. 97 076405
|
[25] |
Werner P and Millis A J 2006 Phys. Rev. B 74 155107
|
[26] |
Gull E, Millis A J, Lichtenstein A I, Rubtsov A N, Troyer M and Werner P 2011 Rev. Mod. Phys. 83 349
|
[27] |
Georges A, de'Medici L and Mravlje J 2013 Annu. Rev. Condens. Matter Phys. 4 137
|
[28] |
Huang L, Wang Y L, Meng Z Y, Du L, Werner P and Dai X 2015 Comput. Phys. Commun. 195 140
|
[29] |
Werner P, Gull E, Troyer M and Millis A J 2008 Phys. Rev. Lett. 101 166405
|
[30] |
Haule K and Kotliar G 2009 New J. Phys. 11 025021
|
[31] |
Toschi A, Arita R, Hansmann P, Sangiovanni G and Held K 2012 Phys. Rev. B 86 064411
|
No Suggested Reading articles found! |
|
|
Viewed |
|
|
|
Full text
|
|
|
|
|
Abstract
|
|
|
|
|
Cited |
|
|
|
|
Altmetric
|
blogs
Facebook pages
Wikipedia page
Google+ users
|
Online attention
Altmetric calculates a score based on the online attention an article receives. Each coloured thread in the circle represents a different type of online attention. The number in the centre is the Altmetric score. Social media and mainstream news media are the main sources that calculate the score. Reference managers such as Mendeley are also tracked but do not contribute to the score. Older articles often score higher because they have had more time to get noticed. To account for this, Altmetric has included the context data for other articles of a similar age.
View more on Altmetrics
|
|
|