|
|
|
Variational Monte Carlo study of the nematic state in iron-pnictide superconductors with a five-orbital model |
| Zheng Xiao-Jun (郑晓军)a, Huang Zhong-Bing (黄忠兵)b c, Zou Liang-Jian (邹良剑)a d |
a Key Laboratory of Materials Physics, Institute of Solid State Physics, Chinese Academy of Sciences, Hefei 230031, China;
b Faculty of Physics and Electronic Technology, Hubei University, Wuhan 430062, China;
c Beijing Computational Science Research Center, Beijing 100084, China;
d Department of Physics, University of Science and Technology of China, Hefei 230026, China |
|
|
|
|
Abstract We perform a variational Monte Carlo study of the nematic state in iron-pnictide superconductors within a realistic five-orbital model. Our numerical results show that the nematic state, formed by introducing an anisotropic hopping order into the projected wave function, is not stable unless the off-site Coulomb interaction V exceeds a critical value. This demonstrates that V plays a key role in forming the nematic state in iron-pnictide superconductors. In the nematic state, the orbital order and the anisotropic spin correlations are consistent with the experimental observations. We argue that the experimentally observed anisotropic magnetic couplings and structural transition are associated with the nematic state and can be understood in a unified framework.
|
Received: 05 November 2014
Revised: 10 November 2014
Accepted manuscript online:
|
|
PACS:
|
74.70.Xa
|
(Pnictides and chalcogenides)
|
| |
71.10.Fd
|
(Lattice fermion models (Hubbard model, etc.))
|
| |
74.25.Jb
|
(Electronic structure (photoemission, etc.))
|
|
| Fund: Project supported by the National Natural Science Foundation of China (Grant Nos. 11274310, 11474287, 11174072, and 91221103) and the Specialized Research Fund for the Doctoral Program of Higher Education of China (Grant No. 20104208110001). |
Corresponding Authors:
Huang Zhong-Bing, Zou Liang-Jian
E-mail: huangzb@hubu.edu.cn;zou@theory.issp.ac.cn
|
Cite this article:
Zheng Xiao-Jun (郑晓军), Huang Zhong-Bing (黄忠兵), Zou Liang-Jian (邹良剑) Variational Monte Carlo study of the nematic state in iron-pnictide superconductors with a five-orbital model 2015 Chin. Phys. B 24 017404
|
| [1] |
Lee P A, Nagaosa N and Wen X G 2006 Rev. Mod. Phys. 78 17
|
| [2] |
Johnston D C 2010 Adv. Phys. 59 803
|
| [3] |
Li H C, Xiang Y Y and Wang Q H 2014 Chin. Phys. Lett. 31 67404
|
| [4] |
Huang Q, Zhao J, Lynn J W, Chen G F, Luo J L, Wang N L and Dai P C 2008 Phys. Rev. B 78 054529
|
| [5] |
Lester C, Chu J H, Analytis J G, Capelli S C, Erickson A S, Condron C L, Toney M F, Fisher I R and Hayden S M 2009 Phys. Rev. B 79 144523
|
| [6] |
Pratt D K, Tian W, Kreyssig A, Zarestky J L, Nandi S, Ni N, Bud'ko S L, Canfield P C, Goldman A I and McQueeney R J 2009 Phys. Rev. Lett. 103 087001
|
| [7] |
Wang Z, Cai Y, Yang H X, Tian H F, Wang Z W, Ma C, Chen Z and Li J Q 2013 Chin. Phys. B 22 87409
|
| [8] |
Ma L and Yu W Q 2013 Chin. Phys. B 22 87414
|
| [9] |
Chu J H, Analytis J G, De Greve K, McMahon P L, Islam Z, Yamamoto Y and Fisher I R 2010 Science 329 824
|
| [10] |
Chu J H, Kuo H H, Analytis J G and Fisher I R 2012 Science 337 710
|
| [11] |
Dusza A, Lucarelli A, Pfuner F, Chu J H, Fisher I R and Degiorgi L 2011 Europhys. Lett. 93 37002
|
| [12] |
Nakajima M, Liang T, Ishida S, Tomioka Y, Kihou K, Lee C H, Iyo A, Eisaki H, Kakeshita T, Ito T and Uchida S 2011 Proc. Natl. Acad. Sci. USA 108 12238
|
| [13] |
Nakajima M, Ishida S, Tomioka Y, Kihou K, Lee C H, Iyo A, Ito T, Kakeshita T, Eisaki H and Uchida S 2012 Phys. Rev. Lett. 109 217003
|
| [14] |
Chuang T M, Allan M P, Lee J, Xie Y, Ni N, Bud'ko S L, Boebinger G S, Canfield P C and Davis J C 2010 Science 327 181
|
| [15] |
Allan M P, Chuang T M, Massee F, Xie Y, Ni N, Bud'ko S L, Boebinger G S, Wang Q, Dessau D S, Canfield P C, Golden M S and Davis J C 2013 Nat. Phys. 9 220
|
| [16] |
Yi M, Lu D H, Chu J H, Analytis J G, Sorini A P, Kemper A F, Moritz B, Mo S K, Moore R G, Hashimoto M, Lee W S, Hussain Z, Devereaux T P, Fisher I R and Shen Z X 2011 Proc. Natl. Acad. Sci. USA 108 6878
|
| [17] |
Zhao J, Adroja D T, Yao D X, Bewley R, Li S L, Wang X F, Wu G, Chen X H, Hu J P and Dai P C 2009 Nat. Phys. 5 555
|
| [18] |
Fang C, Yao H, Tsai W F, Hu J P and Kivelson S A 2008 Phys. Rev. B 77 224509
|
| [19] |
Fernandes R M, Abrahams E and Schmalian J 2011 Phys. Rev. Lett. 107 217002
|
| [20] |
Fernandes R M, Chubukov A V, Knolle J, Eremin I and Schmalian J 2012 Phys. Rev. B 85 024534
|
| [21] |
Lee C C, Yin W G and Ku W 2009 Phys. Rev. Lett. 103 267001
|
| [22] |
Chen C C, Maciejko J, Sorini A P, Moritz B, Singh R R P and Devereaux T P 2010 Phys. Rev. B 82 100504
|
| [23] |
Lee W C and Phillips P W 2012 Phys. Rev. B 86 245113
|
| [24] |
Bao W 2013 Chin. Phys. B 22 87405
|
| [25] |
Lee W C, Lv W C and Arham H Z 2013 Int. J. Mod. Phys. B 27 1330014
|
| [26] |
Lv W C and Phillips P 2011 Phys. Rev. B 84 174512
|
| [27] |
Zheng X J, Huang Z B, Liu D Y and Zou L J 2014 arXiv:1407.1411v1 [cond-mat.supr-con]
|
| [28] |
Graser S, Maier T A, Hirschfeld P J and Scalapino D J 2009 New J. Phys. 11 025016
|
| [29] |
Aichhorn M, Pourovskii L, Vildosola V, Ferrero M, Parcollet O, Miyake T, Georges A and Biermann S 2009 Phys. Rev. B 80 085101
|
| [30] |
Yang W L, Sorini A P, Chen C C, Moritz B, Lee W S, Vernay F, Olalde-Velasco P, Denlinger J D, Delley B, Chu J H, Analytis J G, Fisher I R, Ren Z A, Yang J, Lu W, Zhao Z X, van den Brink J, Hussain Z, Shen Z X and Devereaux T P 2009 Phys. Rev. B 80 014508
|
| [31] |
Anisimov V I, Korotin D M, Korotin M A, Kozhevnikov A V, Kunes J, Shorikov A O, Skornyakov S L and Streltsov S V 2009 J. Phys.: Condens. Matter 21 075602
|
| [32] |
Edegger B, Muthukumar V N and Gros C 2006 Phys. Rev. B 74 165109
|
| [33] |
Zheng X J, Huang Z B and Zou L J 2014 J. Phys. Soc. Jpn. 83 024705
|
| [34] |
Gros C 1989 Ann. Phys. 189 53
|
| [35] |
Yokoyama H and Ogata M 1996 J. Phys. Soc. Jpn. 65 3615
|
| [36] |
Yokoyama H and Shiba H 1988 J. Phys. Soc. Jpn. 57 2482
|
| [37] |
Yamaji K, Yanagisawa T, Nakanishi T and Koike S 1998 Phys. C: Supercond. 304 225
|
| [38] |
Ceperley D, Chester G V and Kalos M H 1977 Phys. Rev. B 16 3081
|
| [39] |
Umrigar C J 2000 Phys. Rev. Lett. 60 1719
|
| [40] |
Miyake T, Nakamura K, Arita R and Imada M 2010 J. Phys. Soc. Jpn. 79 044705
|
| 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
|
|
|
