Bulk nature of layered perovskite iridates beyond the Mott scenario: An approach from a bulk-sensitive photoemission study

Physical Review B - Condensed Matter and Materials Physics

Volumn 89, Issue 12, 2014, Pages

  Yamasaki, A ^a   Tachibana, S ^a   Fujiwara, H ^b   Higashiya, A ^c,d   Irizawa, A ^b   Kirilmaz, O ^e   Pfaff, F ^e   Scheiderer, P ^e   Gabel, J ^e   Sing, M ^e   Muro, T ^f   Yabashi, M ^d   Tamasaku, K ^d   Sato, H ^g   Namatame, H ^g   Taniguchi, M ^g,h   Hloskovskyy, A ⁱ   Yoshida, H ^j   Okabe, H ^j   Isobe, M ^j   Akimitsu, J ^k   Drube, W ⁱ   Claessen, R ^e   Ishikawa, T ^d   Imada, S ^l   Sekiyama, A ^b,d   Suga, S ^b,d   more..

^a KONAN UNIVERSITY   (Japan)

^b OSAKA UNIVERSITY   (Japan)

^c SETSUNAN UNIVERSITY   (Japan)

^d RIKEN SPring 8 Center   (Japan)

^e UNIVERSITY OF WÜRZBURG   (Germany)

^f JAPAN SYNCHROTRON RADIATION RESEARCH INSTITUTE   (Japan)

^g HIROSHIMA UNIVERSITY   (Japan)

^h HIROSHIMA UNIVERSITY   (Japan)

ⁱ DESY   (Germany)

^j NATIONAL INSTITUTE FOR MATERIALS SCIENCE   (Japan)

^k AOYAMA GAKUIN UNIVERSITY   (Japan)

^l RITSUMEIKAN UNIVERSITY   (Japan)

more..

Author keywords

[No Author keywords available]

Indexed keywords

EID: 84898717773     PISSN: 10980121     EISSN: 1550235X     Source Type: Journal    
DOI: 10.1103/PhysRevB.89.121111     Document Type: Article

References (45)

1. M. Imada, A. Fujimori, and Y. Tokura, Rev. Mod. Phys. 70, 1039 (1998). RMPHAT 0034-6861 10.1103/RevModPhys.70.1039 (Pubitemid 128159247)
2. M. W. Haverkort, Z. Hu, A. Tanaka, W. Reichelt, S. V. Streltsov, M. A. Korotin, V. I. Anisimov, H. H. Hsieh, H.-J. Lin, C. T. Chen, D. I. Khomskii, and L. H. Tjeng, Phys. Rev. Lett. 95, 196404 (2005). PRLTAO 0031-9007 10.1103/PhysRevLett.95.196404 (Pubitemid 41777219)
3. A. Comanac, L. de' Medici, M. Capone, and A. J. Mills, Nat. Phys. 4, 287 (2008). 1745-2473 10.1038/nphys883
4. R. J. Cava, B. Batlogg, K. Kiyono, H. Takagi, J. J. Krajewski, W. F. Peck, Jr., L. W. Rupp, Jr., and C. H. Chen, Phys. Rev. B 49, 11890 (1994). PRBMDO 0163-1829 10.1103/PhysRevB.49.11890
5. B. J. Kim, H. Jin, S. J. Moon, J.-Y. Kim, B.-G. Park, C. S. Leem, J. Yu, T. W. Noh, C. Kim, S.-J. Oh, J.-H. Park, V. Durairaj, G. Cao, and E. Rotenberg, Phys. Rev. Lett. 101, 076402 (2008). PRLTAO 0031-9007 10.1103/PhysRevLett.101. 076402
6. S. J. Moon, H. Jin, W. S. Choi, J. S. Lee, S. S. A. Seo, J. Yu, G. Cao, T. W. Noh, and Y. S. Lee, Phys. Rev. B 80, 195110 (2009). PRBMDO 1098-0121 10.1103/PhysRevB.80.195110
7. B. H. Kim, G. Khaliullin, and B. I. Min, Phys. Rev. Lett. 109, 167205 (2012). PRLTAO 0031-9007 10.1103/PhysRevLett.109.167205
8. A. Sekiyama, T. Iwasaki, K. Matsuda, Y. Saitoh, Y. Ōnuki, and S. Suga, Nature (London) 403, 396 (2000). NATUAS 0028-0836 10.1038/35000140 (Pubitemid 30073081)
9. A. Sekiyama, S. Kasai, M. Tsunekawa, Y. Ishida, M. Sing, A. Irizawa, A. Yamasaki, S. Imada, T. Muro, Y. Saitoh, Y. Onuki, T. Kimura, Y. Tokura, and S. Suga, Phys. Rev. B 70, 060506 (R) (2004). PRBMDO 1098-0121 10.1103/PhysRevB.70. 060506
10. R. Arita, J. Kuneš, A. V. Kozhevnikov, A. G. Eguiluz, and M. Imada, Phys. Rev. Lett. 108, 086403 (2012). PRLTAO 0031-9007 10.1103/PhysRevLett.108.086403
11. J. C. Slater, Phys. Rev. 82, 538 (1951). PHRVAO 0031-899X 10.1103/PhysRev.82.538
12. D. Hsieh, F. Mahmood, D. H. Torchinsky, G. Cao, and N. Gedik, Phys. Rev. B 86, 035128 (2012). 10.1103/PhysRevB.86.035128
13. M. K. Crawford, M. A. Subramanian, R. L. Harlow, J. A. Fernandez-Baca, Z. R. Wang, and D. C. Johnston, Phys. Rev. B 49, 9198 (1994). PRBMDO 0163-1829 10.1103/PhysRevB.49.9198
14. H. Okabe, M. Isobe, E. Takayama-Muromachi, A. Koda, S. Takeshita, M. Hiraishi, M. Miyazaki, R. Kadono, Y. Miyake, and J. Akimitsu, Phys. Rev. B 83, 155118 (2011). PRBMDO 1098-0121 10.1103/PhysRevB.83.155118
15. F. Wang and T. Senthil, Phys. Rev. Lett. 106, 136402 (2011). PRLTAO 0031-9007 10.1103/PhysRevLett.106.136402
16. H. Watanabe, T. Shirakawa, and S. Yunoki, Phys. Rev. Lett. 110, 027002 (2013). PRLTAO 0031-9007 10.1103/PhysRevLett.110.027002
17. J. J. Yeh and I. Lindau, At. Data Nucl. Data Tables 32, 1 (1985). ADNDAT 0092-640X 10.1016/0092-640X(85)90016-6
18. A. Yamasaki, S. Imada, H. Higashimichi, H. Fujiwara, T. Saita, T. Miyamachi, A. Sekiyama, H. Sugawara, D. Kikuchi, H. Sato, A. Higashiya, M. Yabashi, K. Tamasaku, D. Miwa, T. Ishikawa, and S. Suga, Phys. Rev. Lett. 98, 156402 (2007) PRLTAO 0031-9007 10.1103/PhysRevLett.98.156402;
19. A. Yamasaki, Y. Matsui, S. Imada, K. Takase, H. Azuma, T. Muro, Y. Kato, A. Higashiya, A. Sekiyama, S. Suga, M. Yabashi, K. Tamasaku, T. Ishikawa, K. Terashima, H. Kobori, A. Sugimura, N. Umeyama, H. Sato, Y. Hara, N. Miyagawa, and S. I. Ikeda, Phys. Rev. B 82, 184511 (2010). PRBMDO 1098-0121 10.1103/PhysRevB.82.184511
20. S. Tanuma, C. J. Powell, and D. R. Penn, Surf. Interface Anal. 21, 165 (1994). SIANDQ 0142-2421 10.1002/sia.740210302
21. M. Yabashi, K. Tamasaku, and T. Ishikawa, Phys. Rev. Lett. 87, 140801 (2001). PRLTAO 0031-9007 10.1103/PhysRevLett.87.140801 (Pubitemid 32962127)
22. J. Strempfer, S. Francoual, D. Reuther, D. K. Shukla, A. Skaugen, H. Schulte-Schrepping, T. Kracht, and H. Franz, J. Synchrotron Radiat. 20, 541 (2013). JSYRES 0909-0495 10.1107/S0909049513009011
23. Y. Saitoh, H. Kimura, Y. Suzuki, T. Nakatani, T. Matsushita, T. Muro, T. Miyahara, M. Fujisawa, K. Soda, S. Ueda, H. Harada, M. Kotsugi, A. Sekiyama, and S. Suga, Rev. Sci. Instrum. 71, 3254 (2000). RSINAK 0034-6748 10.1063/1.1287626
24. S. Souma, T. Sato, T. Takahashi, and P. Baltzer, Rev. Sci. Instrum. 78, 123104 (2007). RSINAK 0034-6748 10.1063/1.2818806
25. S. Suga, A. Sekiyama, G. Funabashi, J. Yamaguchi, M. Kimura, M. Tsujibayashi, T. Uyama, H. Sugiyama, Y. Tomida, G. Kuwahara, S. Kitayama, K. Fukushima, K. Kimura, T. Yokoi, K. Murakami, H. Fujiwara, Y. Saitoh, L. Plucinski, and C. M. Schneider, Rev. Sci. Instrum. 81, 105111 (2010). RSINAK 0034-6748 10.1063/1.3488367
26. H. Sato, T. Kotsugi, S. Senba, H. Namatame, and M. Taniguchi, J. Synchrotron Radiat. 5, 772 (1998). JSYRES 0909-0495 10.1107/S0909049597015380
27. (Equation presented) is defined as ((Equation presented))/((Equation presented)), where (Equation presented) and (Equation presented) stand for the intensities of (Equation presented)- and (Equation presented)-polarization components in the x ray, respectively.
28. A. Sekiyama, J. Yamaguchi, A. Higashiya, M. Obara, H. Sugiyama, M. Y. Kimura, S. Suga, S. Imada, I. A. Nekrasov, M. Yabashi, K. Tamasaku, and T. Ishikawa, New J. Phys. 12, 043045 (2010). 10.1088/1367-2630/12/4/043045
29. M. B. Trzhaskovskaya, V. I. Nefedov, and V. G. Yarzhemsky, At. Data Nucl. Data Tables 77, 97 (2001) ADNDAT 0092-640X 10.1006/adnd.2000.0849;
30. M. B. Trzhaskovskaya, V. I. Nefedov, and V. G. Yarzhemsky, At. Data Nucl. Data Tables 82, 257 (2002) ADNDAT 0092-640X 10.1006/adnd.2002.0886;
31. M. B. Trzhaskovskaya, V. K. Nukulin, V. I. Nefedov, and V. G. Yarzhemsky, At. Data Nucl. Data Tables 92, 245 (2006). ADNDAT 0092-640X 10.1016/j.adt.2005.12.002 (Pubitemid 43231209)
32. The peak at (Equation presented) eV in Ba(Equation presented)IrO(Equation presented) originates from O (Equation presented) nonbonding states and does not appear in the calculated spectrum.
33. For instance, V(Equation presented)O(Equation presented) is a typical Mott system. But the energy gap opens suddenly at (Equation presented), since it is identical to the MIT temperature in this material. Across the (Equation presented) the photoemission spectral shape drastically changes all over the valence band [31]. This is not the present case since we have never observed such sharp changes.
34. H. Fujiwara, A. Sekiyama, S.-K. Mo, J. W. Allen, J. Yamaguchi, G. Funabashi, S. Imada, P. Metcalf, A. Higashiya, M. Yabashi, K. Tamasaku, T. Ishikawa, and S. Suga, Phys. Rev. B 84, 075117 (2011). PRBMDO 1098-0121 10.1103/PhysRevB.84.075117
35. D. A. Shirley, Photoemission in Solids I, edited by M. Cardona and L. Ley, Topics in Applied Physics Vol. 26 (Springer-Verlag, Berlin, 1978), p. 193.
36. T. Kiss, F. Kanetaka, T. Yokoya, T. Shimojima, K. Kanai, S. Shin, Y. Onuki, T. Togashi, C. Zhang, C. T. Chen, and S. Watanabe, Phys. Rev. Lett. 94, 057001 (2005). PRLTAO 0031-9007 10.1103/PhysRevLett.94.057001 (Pubitemid 40620878)
37. J. D. Koralek, J. F. Douglas, N. C. Plumb, Z. Sun, A. V. Federov, M. M. Murnane, H. C. Kapteyn, S. T. Cundiff, Y. Aiura, K. Oka, H. Eisaki, and D. S. Dessau, Phys. Rev. Lett. 96, 017005 (2006). PRLTAO 0031-9007 10.1103/PhysRevLett.96.017005 (Pubitemid 43248391)
38. T. Sato, S. Souma, K. Sugawara, K. Nakayama, S. Raj, H. Hiraka, and T. Takahashi, Phys. Rev. B 76, 113102 (2007). PRBMDO 1098-0121 10.1103/PhysRevB.76. 113102
39. D. R. Penn, Phys. Rev. B 35, 482 (1987). PRBMDO 0163-1829 10.1103/PhysRevB.35.482
40. F. Offi, S. Iacobucci, P. Vilmercati, A. Rizzo, A. Goldoni, M. Sacchi, and G. Panaccione, Phys. Rev. B 77, 201101 (R) (2008). PRBMDO 1098-0121 10.1103/PhysRevB.77.201101
41. S. Suga and A. Sekiyama, Photoelectron Spectroscopy: Bulk and Surface Electronic Structures, Springer Series in Optical Sciences Vol. 176 (Springer-Verlag, Berlin, 2013), pp. 266 and 270.
42. At low temperature one can hardly remove the influence of the electrical charging effect caused by the photoelectron emission from the ELEPES spectra of the insulating iridates since the photoelectrons with very low kinetic energy are very sensitive to the effect.
43. J. Kim, D. Casa, M. H. Upton, T. Gog, Y.-J. Kim, J. F. Mitchell, M. van Veenendaal, M. Daghofer, J. van den Brink, G. Khaliullin, and B. J. Kim, Phys. Rev. Lett. 108, 177003 (2012). PRLTAO 0031-9007 10.1103/PhysRevLett.108.177003
44. K. Maiti, R. S. Singh, V. R. R. Medicherla, S. Rayaprol, and E. V. Sampathkumaran, Phys. Rev. Lett. 95, 016404 (2005). PRLTAO 0031-9007 10.1103/PhysRevLett.95.016404 (Pubitemid 41506383)
45. R. S. Singh, V. R. R. Medicherla, Kalobaran Maiti, and E. V. Sampathkumaran, Phys. Rev. B 77, 201102 (R) (2008). PRBMDO 1098-0121 10.1103/PhysRevB.77.201102