High-resolution hard x-ray photoemission investigation of La 2-2xSr 1+2xMn 2O 7 (0.30≤x<0.50): Microscopic phase separation and surface electronic structure of a bilayer colossal magnetoresistance manganite

Physical Review B - Condensed Matter and Materials Physics

Volumn 80, Issue 20, 2009, Pages

  De Jong, S ^a   Massee, F ^a   Huang, Y ^a   Gorgoi, M ^b   Schaefers, F ^b   Fink, J ^b   Boothroyd, A T ^c   Prabhakaran, D ^c   Goedkoop, J B ^a   Golden, M S ^a  

^a UNIVERSITY OF AMSTERDAM   (Netherlands)

^b HAHN MEITNER INSTITUT   (Germany)

^c UNIVERSITY OF OXFORD   (United Kingdom)

Author keywords

[No Author keywords available]

Indexed keywords

EID: 84856406123     PISSN: 10980121     EISSN: 1550235X     Source Type: Journal    
DOI: 10.1103/PhysRevB.80.205108     Document Type: Article

References (37)

1. R. von Helmolt, J. Wecker, B. Holzapfel, L. Schultz, and K. Samwer, Phys. Rev. Lett. 71, 2331 (1993). 10.1103/PhysRevLett.71.2331
2. Y. Tokura, Rep. Prog. Phys. 69, 797 (2006). 10.1088/0034-4885/69/3/R06
3. K. Kubo and N. Ohata, J. Phys. Soc. Jpn. 33, 21 (1972). 10.1143/JPSJ.33.21
4. A. J. Millis, P. B. Littlewood, and B. I. Shraiman, Phys. Rev. Lett. 74, 5144 (1995). 10.1103/PhysRevLett.74.5144
5. Y. Moritomo, A. Asamitsu, H. Kuwahara, and Y. Tokura, Nature (London) 380, 141 (1996). 10.1038/380141a0
6. S. Yunoki, J. Hu, A. L. Malvezzi, A. Moreo, N. Furukawa, and E. Dagotto, Phys. Rev. Lett. 80, 845 (1998). 10.1103/PhysRevLett.80.845
7. M. Fäth, S. Freisem, A. A. Menovsky, Y. Tomioka, J. Aarts, and J. A. Mydosh, Science 285, 1540 (1999). 10.1126/science.285.5433.1540
8. T. Becker, C. Streng, Y. Luo, V. Moshnyaga, B. Damaschke, N. Shannon, and K. Samwer, Phys. Rev. Lett. 89, 237203 (2002). 10.1103/PhysRevLett.89.237203
9. L. Zhang, C. Israel, A. Biswas, R. L. Greene, and A. de Lozanne, Science 298, 805 (2002). 10.1126/science.1077346
10. S. Rößler, S. Ernst, B. Padmanabhan, S. Elizabeth, H. L. Bhat, F. Steglich, and S. Wirth, EPL 83, 17009 (2008). 10.1209/0295-5075/83/17009
11. D. D. Sarma, D. Topwal, U. Manju, S. R. Krishnakumar, M. Bertolo, S. La Rosa, G. Cautero, T. Y. Koo, P. A. Sharma, S.-W. Cheong, and A. Fujimori, Phys. Rev. Lett. 93, 097202 (2004). 10.1103/PhysRevLett.93.097202
12. K. Ebata, H. Wadati, M. Takizawa, A. Fujimori, A. Chikamatsu, H. Kumigashira, M. Oshima, Y. Tomioka, and Y. Tokura, Phys. Rev. B 74, 064419 (2006). 10.1103/PhysRevB.74.064419
13. Z. Sun, J. F. Douglas, A. V. Fedorov, Y.-D. Chuang, H. Zheng, J. F. Mitchell, and D. S. Dessau, Nat. Phys. 3, 248 (2007). 10.1038/nphys517
14. Y.-D. Chuang, A. D. Gromko, D. S. Dessau, T. Kimura, and Y. Tokura, Science 292, 1509 (2001). 10.1126/science.1059255
15. N. Mannella, W. L. Yang, X. J. Zhou, H. Zheng, J. F. Mitchell, J. Zaanen, T. P. Devereaux, N. Nagaosa, Z. Hussain, and Z.-X. Shen, Nature (London) 438, 474 (2005). 10.1038/nature04273
16. Z. Sun, Y.-D. Chuang, A. V. Fedorov, J. F. Douglas, D. Reznik, F. Weber, N. Aliouane, D. N. Argyriou, H. Zheng, J. F. Mitchell, T. Kimura, Y. Tokura, A. Revcolevschi, and D. S. Dessau, Phys. Rev. Lett. 97, 056401 (2006). 10.1103/PhysRevLett.97.056401
17. S. de Jong, Y. Huang, I. Santoso, F. Massee, R. Follath, O. Schwarzkopf, L. Patthey, M. Shi, and M. S. Golden, Phys. Rev. B 76, 235117 (2007). 10.1103/PhysRevB.76.235117
18. N. Mannella, W. L. Yang, K. Tanaka, X. J. Zhou, H. Zheng, J. F. Mitchell, J. Zaanen, T. P. Devereaux, N. Nagaosa, Z. Hussain, and Z.-X. Shen, Phys. Rev. B 76, 233102 (2007). 10.1103/PhysRevB.76.233102
19. Z. Sun, J. F. Douglas, Q. Wang, D. S. Dessau, A. V. Federov, H. Lin, S. Sahrakorpi, B. Barbiellini, R. S. Markiewicz, A. Bansil, H. Zheng, and J. F. Mitchell, Phys. Rev. B 78, 075101 (2008). 10.1103/PhysRevB.78.075101
20. J. W. Freeland, K. E. Gray, L. Ozyuzer, P. Berghuis, Elvira Badica, J. Kavich, H. Zheng, and J. F. Mitchell, Nature Mater. 4, 62 (2005). 10.1038/nmat1280
21. H. M. Rønnow, Ch. Renner, G. Aeppli, T. Kimura, and Y. Tokura, Nature (London) 440, 1025 (2006). 10.1038/nature04650
22. J. Matsuno, A. Fujimori, Y. Takeda, and M. Takano, Europhys. Lett. 59, 252 (2002). 10.1209/epl/i2002-00234-2
23. F. Offi, N. Mannella, T. Pardini, G. Panaccione, A. Fondacaro, P. Torelli, M. W. West, J. F. Mitchell, and C. S. Fadley, Phys. Rev. B 77, 174422 (2008). 10.1103/PhysRevB.77.174422
24. F. Schaefers, M. Mertin, and M. Gorgoi, Rev. Sci. Instrum. 78, 123102 (2007). 10.1063/1.2808334
25. D. Prabhakaran and A. T. Boothroyd, in Frontiers in Magnetic Materials, edited by, A. Narlikar, (Springer-Verlag, Berlin, 2005), pp. 97-115.
26. C. D. Ling, J. E. Millburn, J. F. Mitchell, D. N. Argyriou, J. Linton, and H. N. Bordallo, Phys. Rev. B 62, 15096 (2000). 10.1103/PhysRevB.62.15096
27. Due to the extreme grazing incidence geometry necessary to better match the inelastic mean-free-path length of the photoelectrons and the penetration depth of the hard x rays, it is unavoidable to also pick up signals from the sample mounting.
28. M. van Veenendaal, Phys. Rev. B 74, 085118 (2006). 10.1103/PhysRevB.74. 085118
29. K. Horiba, M. Taguchi, A. Chainani, Y. Takata, E. Ikenaga, D. Miwa, Y. Nishino, K. Tamasaku, M. Awaji, A. Takeuchi, M. Yabashi, H. Namatame, M. Taniguchi, H. Kumigashira, M. Oshima, M. Lippmaa, M. Kawasaki, H. Koinuma, K. Kobayashi, T. Ishikawa, and S. Shin, Phys. Rev. Lett. 93, 236401 (2004). 10.1103/PhysRevLett.93.236401
30. T. A. Tyson, Q. Qian, C.-C. Kao, J.-P. Rueff, F. M. F. de Groot, M. Croft, S.-W. Cheong, M. Greenblatt, and M. A. Subramanian, Phys. Rev. B 60, 4665 (1999). 10.1103/PhysRevB.60.4665
31. The measured intensities of core levels for the different elements are determined not only by their relative stoichiometry but also by their (photon-energy-dependent) photoionisation cross sections. To allow a comparison between the measured La/Sr ratio and the ratios expected from the nominal doping levels, the measured La 4 d to Sr 3 d peak area ratio versus doping has been scaled such that the average measured value over all doping levels coincides with the average ratio predicted from stoichiometry over the entire doping range. Thereafter, all data in the plot has been scaled such that the predicted ratio for x = 0.30 is set to 1. This way the reported, experimentally determined ratios are independent of the cross sections for the La 4 d and Sr 3 d core levels.
32. It was checked and confirmed that binding-energy shifts versus doping, obtained by either a Voigt-peak fitting procedure or a center of gravity determination of the core-level spectra, yielded the same result as the cross-correlation procedure.
33. S. Hüfner, Photoelectron Spectroscopy (Springer-Verlag, Berlin, 1995).
34. X. Y. Huang, O. N. Mryasov, D. L. Novikov, and A. J. Freeman, Phys. Rev. B 62, 13318 (2000). 10.1103/PhysRevB.62.13318
35. J.-Y. Son, T. Mizokawa, J. W. Quilty, S. Hirata, K. Takubo, T. Kimura, and Y. Tokura, Phys. Rev. B 70, 012411 (2004). 10.1103/PhysRevB.70.012411
36. A. Moreo, S. Yunoki, and E. Dagotto, Science 283, 2034 (1999). 10.1126/science.283.5410.2034
37. A. Moreo, M. Mayr, A. Feiguin, S. Yunoki, and E. Dagotto, Phys. Rev. Lett. 84, 5568 (2000). 10.1103/PhysRevLett.84.5568