Photoinduced Phase Transition in Charge Order Systems—Charge Frustration and Interplay with Lattice—

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Hiroshi Hashimoto¹^,, Hiroaki Matsueda², Hitoshi Seo³^,⁴, and Sumio Ishihara¹

+ Affiliations

¹Department of Physics, Tohoku University, Sendai 980-8578, Japan²Sendai National College of Technology, Sendai 989-3128, Japan³Condensed Matter Theory Laboratory, RIKEN, Wako, Saitama 351-0198, Japan⁴RIKEN Center for Emergent Matter Science (CEMS), Wako, Saitama 351-0198, Japan

Received July 7, 2015; Accepted September 11, 2015; Published October 21, 2015

Lattice effects on photoexcited states in an interacting charge-frustrated system are examined. Real-time dynamics in the interacting spinless fermion model on a triangular lattice coupled to lattice vibration are analyzed by applying the exact diagonalization method combined with the classical equation of motion. A photoinduced phase transition from the horizontal stripe-type charge order (CO) to the 3-fold CO occurs through a characteristic intermediate time domain. By analyzing the time evolution in detail, we find that these characteristic dynamics are seen when the electron and lattice sectors are not complementary to each other but show cooperative time evolutions. The dynamics are distinct from those from the vertical stripe-type CO, in which a monotonic CO melting occurs. A scenario of the photoinduced CO phase transition with lattice degree of freedom is presented from the viewpoint of charge frustration.

https://doi.org/10.7566/JPSJ.84.113702

References

1 K. Yamamoto, S. Iwai, S. Boyko, A. Kashiwazaki, F. Hiramatsu, C. Okabe, N. Nishi, and K. Yakushi, J. Phys. Soc. Jpn. 77, 074709 (2008). 10.1143/JPSJ.77.074709 Link, Google Scholar
2 Y. Tomioka and Y. Tokura, Phys. Rev. B 70, 014432 (2004). 10.1103/PhysRevB.70.014432 Crossref, Google Scholar
3 J. D. Axe, A. H. Moudden, D. Hohlwein, D. E. Cox, K. M. Mohanty, A. R. Moodenbaugh, and Y. Xu, Phys. Rev. Lett. 62, 2751 (1989). 10.1103/PhysRevLett.62.2751 Crossref, Google Scholar
4 P. W. Anderson, Phys. Rev. 102, 1008 (1956). 10.1103/PhysRev.102.1008 Crossref, Google Scholar
5 E. J. W. Verwey and P. W. Haaymann, Physica 8, 979 (1941). 10.1016/S0031-8914(41)80005-6 Crossref, Google Scholar
6 Y. Kawakami, T. Fukatsu, Y. Sakurai, H. Unno, H. Itoh, S. Iwai, T. Sasaki, K. Yamamoto, K. Yakushi, and K. Yonemitsu, Phys. Rev. Lett. 105, 246402 (2010). 10.1103/PhysRevLett.105.246402 Crossref, Google Scholar
7 T. Ishikawa, Y. Sagae, Y. Naitoh, Y. Kawakami, H. Itoh, K. Yamamoto, K. Yakushi, H. Kishida, T. Sasaki, S. Ishihara, Y. Tanaka, K. Yonemitsu, and S. Iwai, Nat. Commun. 5, 5528 (2014). 10.1038/ncomms6528 Crossref, Google Scholar
8 K. Onda, S. Ogihara, K. Yonemitsu, N. Maeshima, T. Ishikawa, Y. Okimoto, X. Shao, Y. Nakano, H. Yamochi, G. Saito, and S. Koshihara, Phys. Rev. Lett. 101, 067403 (2008). 10.1103/PhysRevLett.101.067403 Crossref, Google Scholar
9 M. Gao, C. Lu, H. Jean-Ruel, L. C. Liu, A. Marx, K. Onda, S. Koshihara, Y. Nakano, X. F. Shao, T. Hiramatsu, G. Saito, H. Yamochi, R. R. Cooney, G. Moriena, G. Sciaini, and R. J. D. Miller, Nature 496, 343 (2013). 10.1038/nature12044 Crossref, Google Scholar
10 P. Beaud, A. Caviezel, S. O. Mariager, L. Retting, G. Ingold, C. Dornes, S.-W. Huang, J. A. Johnson, M. Radovic, T. Huber, T. Kubacka, A. Ferrer, H. T. Lemke, M. Chollet, D. Zhu, J. M. Glownia, M. Sikorski, A. Robert, H. Wadati, M. Nakamura, M. Kawasaki, Y. Tokura, S. L. Johnson, and U. Staub, Nat. Mater. 13, 923 (2014). 10.1038/nmat4046 Crossref, Google Scholar
11 K. Yonemitsu and N. Maeshima, Phys. Rev. B 76, 075105 (2007). 10.1103/PhysRevB.76.075105 Crossref, Google Scholar
12 J. Rincón, L. A. Al-Hassanieh, A. E. Feiguin, and E. Dagotto, Phys. Rev. B 90, 155112 (2014). 10.1103/PhysRevB.90.155112 Crossref, Google Scholar
13 K. Yonemitsu, Crystals 2, 56 (2012). 10.3390/cryst2010056 Crossref, Google Scholar
14 J. Merino, H. Seo, and M. Ogata, Phys. Rev. B 71, 125111 (2005). 10.1103/PhysRevB.71.125111 Crossref, Google Scholar
15 Y. Tanaka and K. Yonemitsu, J. Phys. Soc. Jpn. 77, 034708 (2008). 10.1143/JPSJ.77.034708 Link, Google Scholar
16 S. Miyashita and K. Yonemitsu, Phys. Rev. B 75, 245112 (2007). 10.1103/PhysRevB.75.245112 Crossref, Google Scholar
17 C. Hotta, N. Furukawa, A. Nakagawa, and K. Kubo, J. Phys. Soc. Jpn. 75, 123704 (2006). 10.1143/JPSJ.75.123704 Link, Google Scholar
18 S. Nishimoto, M. Shingai, and Y. Ohta, Phys. Rev. B 78, 035113 (2008). 10.1103/PhysRevB.78.035113 Crossref, Google Scholar
19 S. Nishimoto and C. Hotta, Phys. Rev. B 79, 195124 (2009). 10.1103/PhysRevB.79.195124 Crossref, Google Scholar
20 M. Miyazaki, C. Hotta, S. Miyahara, K. Matsuda, and N. Furukawa, J. Phys. Soc. Jpn. 78, 014707 (2009). 10.1143/JPSJ.78.014707 Link, Google Scholar
21 M. Naka and H. Seo, J. Phys. Soc. Jpn. 83, 053706 (2014). 10.7566/JPSJ.83.053706 Link, Google Scholar
22 H. Hashimoto, H. Matsueda, H. Seo, and S. Ishihara, J. Phys. Soc. Jpn. 83, 123703 (2014). 10.7566/JPSJ.83.123703 Link, Google Scholar
23 T. J. Park and J. C. Light, J. Chem. Phys. 85, 5870 (1986). 10.1063/1.451548 Crossref, Google Scholar
24 P. Prelovsek and J. Bonca, arXiv:1111.5931. Google Scholar
25 H. Gomi, T. Kawatani, T. J. Inagaki, and A. Takahashi, J. Phys. Soc. Jpn. 83, 094714 (2014). 10.7566/JPSJ.83.094714 Link, Google Scholar
(26) In the initial states for the Newtonian equation, small random lattice distortions (δqi) and momenta (δpi) are introduced in order to break a high symmetry in a cluster, in which the condition \(\omega _{\text{lat}}(\delta q_{i}^{2} + \delta p_{i}^{2})/2 = 10^{ - 6}t\) is satisfied at each site. Google Scholar

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Photoinduced Phase Transition in Charge Order Systems—Charge Frustration and Interplay with Lattice—

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