Large photoconductivity and light-induced recovery of the insulator-metal transition in ultrathin La0.7 Ce0.3 MnO3-δ films

Physical Review B - Condensed Matter and Materials Physics

Volumn 80, Issue 7, 2009, Pages

  Beyreuther, E ^a   Thiessen, A ^a   Grafstrom S ^a   Eng, L M ^a   Dekker, M C ^b   Dorr K ^b  

^a DRESDEN UNIVERSITY OF TECHNOLOGY   (Germany)

^b Institute for Metallic Materials   (Germany)

Author keywords

[No Author keywords available]

Indexed keywords

EID: 70249148551     PISSN: 10980121     EISSN: 1550235X     Source Type: Journal    
DOI: 10.1103/PhysRevB.80.075106     Document Type: Article

References (35)

1. A. Ramirez, J. Phys.: Condens. Matter 9, 8171 (1997). 10.1088/0953-8984/9/39/005
2. J. M. D. Coey, M. Viret, and S. von Molnár, Adv. Phys. 48, 167 (1999). 10.1080/000187399243455
3. M. B. Salamon and M. Jaime, Rev. Mod. Phys. 73, 583 (2001). 10.1103/RevModPhys.73.583
4. K. Dörr, J. Phys. D 39, R125 (2006). 10.1088/0022-3727/39/7/R01
5. V. Kiryukhin, D. Casa, J. P. Hill, B. Keimer, A. Vigiliante, Y. Tomioka, and Y. Tokura, Nature (London) 386, 813 (1997). 10.1038/386813a0
6. K. Miyano, T. Tanaka, Y. Tomioka, and Y. Tokura, Phys. Rev. Lett. 78, 4257 (1997). 10.1103/PhysRevLett.78.4257
7. J. Hao, G. He, D. Lu, and H.-K. Wong, Mater. Lett. 46, 225 (2000). 10.1016/S0167-577X(00)00175-0 (Pubitemid 32033592)
8. A. Gilabert, R. Cauro, M. G. Medici, J. C. Grenet, H. S. Wang, Y. F. Hu, and Q. Li, J. Supercond. 13, 285 (2000). 10.1023/A:1007760202272 (Pubitemid 30588628)
9. R. Cauro, A. Gilabert, J. P. Contour, R. Lyonnet, M. G. Medici, J. C. Grenet, C. Leighton, and I. K. Schuller, Phys. Rev. B 63, 174423 (2001). 10.1103/PhysRevB.63.174423
10. Z. G. Sheng, Y. P. Sun, J. M. Dai, X. B. Zhu, and W. H. Song, Appl. Phys. Lett. 89, 082503 (2006). 10.1063/1.2337285 (Pubitemid 44286148)
11. H. Oshima, M. Nakamura, and K. Miyano, Phys. Rev. B 63, 075111 (2001). 10.1103/PhysRevB.63.075111
12. I. I. Smolyaninov, V. N. Smolyaninova, C. C. Davis, B.-G. Kim, S.-W. Cheong, and R. L. Greene, Phys. Rev. Lett. 87, 127204 (2001). 10.1103/PhysRevLett.87.127204
13. S. Chaudhuri and R. C. Budhani, Europhys. Lett. 81, 17002 (2008). 10.1209/0295-5075/81/17002
14. W. Westhäuser, S. Schramm, J. Hoffmann, and C. Jooss, Eur. Phys. J. B 53, 323 (2006). 10.1140/epjb/e2006-00387-2 (Pubitemid 44657721)
15. N. Kida, K. Takahashi, and M. Tonouchi, Phys. Rev. B 76, 184437 (2007). 10.1103/PhysRevB.76.184437
16. M. Matsubara, Y. Okimoto, T. Ogasawara, S. Iwai, Y. Tomioka, H. Okamoto, and Y. Tokura, Phys. Rev. B 77, 094410 (2008). 10.1103/PhysRevB.77.094410
17. K. Satoh and S. Ishihara, J. Magn. Magn. Mater. 310, 798 (2007). 10.1016/j.jmmm.2006.10.199 (Pubitemid 46319552)
18. M. Fiebig, K. Miyano, Y. Tomioka, and Y. Tokura, Science 280, 1925 (1998). 10.1126/science.280.5371.1925 (Pubitemid 28299397)
19. M. Fiebig, K. Miyano, Y. Tomioka, and Y. Tokura, Appl. Phys. Lett. 74, 2310 (1999). 10.1063/1.123834
20. H. Katsu, H. Tanaka, and T. Kawai, J. Appl. Phys. 90, 4578 (2001). 10.1063/1.1410328
21. E. Beyreuther, S. Grafström, L. M. Eng, C. Thiele, and K. Dörr, Phys. Rev. B 73, 155425 (2006). 10.1103/PhysRevB.73.155425
22. T. Yanagida, T. Kanki, B. Vilquin, H. Tanaka, and T. Kawai, Appl. Surf. Sci. 244, 355 (2005). 10.1016/j.apsusc.2004.09.145 (Pubitemid 40423731)
23. R. Werner, C. Raisch, V. Leca, V. Ion, S. Bals, G. Van Tendeloo, T. Chassé, R. Kleiner, and D. Koelle, Phys. Rev. B 79, 054416 (2009). 10.1103/PhysRevB.79.054416
24. D. J. Wang, C. M. Xiong, G. J. Liu, Y. W. Xie, B. G. Shen, and J. R. Sun, Physica B 371, 187 (2006). 10.1016/j.physb.2005.10.110 (Pubitemid 43031422)
25. D. J. Wang, J. R. Sun, S. Y. Zhang, G. J. Liu, B. G. Shen, H. F. Tian, and J. Q. Li, Phys. Rev. B 73, 144403 (2006). 10.1103/PhysRevB.73.144403
26. B. Holzapfel, B. Roas, L. Schultz, P. Bauer, and G. Saemann-Ischenko, Appl. Phys. Lett. 61, 3178 (1992). 10.1063/1.107951
27. C. Mitra, P. Raychaudhuri, G. Köbernik, K. Dörr, K.-H. Müller, L. Schultz, and R. Pinto, Appl. Phys. Lett. 79, 2408 (2001). 10.1063/1.1409592
28. P. Raychaudhuri, C. Mitra, P. D. A. Mann, and S. Wirth, J. Appl. Phys. 93, 8328 (2003). 10.1063/1.1556976
29. In order to estimate the magnitude of sample heating we assume one-dimensional heat conduction from the sample surface towards its rear side. The temperature difference ΔT between surface and rear side can be calculated as ΔT= Pl λA with P being the incident light power, l the sample thickness (here: 0.5 mm), A the illuminated area (here: 5× 10-3 mm2 for the unexpanded laser beam), and λ the heat conductivity of SrTiO3 [10W K-1 m-1 in the range between 100 and 300 K (Ref.)]. At a laser power of 100 mW our estimation gives a temperature difference of 1 K.
30. K. X. Jin, C. L. Chen, and S. G. Zhao, J. Mater. Sci. 42, 9617 (2007). 10.1007/s10853-007-1972-4 (Pubitemid 47476457)
31. To ensure that there is no metallic phase below 80 K the sample was later transferred into a liquid-helium cryostat for a resistivity measurement at lower temperatures: no phase transition was observed down to 5 K.
32. The photon flux Φ= P hν, with P being the incident power at the sample surface, is proportional to Pλ. In our measurement we used a value of Pλ=1260mWnm, which corresponds, for example, to an incident light power of 2.1 mW at a wavelength of 600 nm.
33. Note that the value of 500 nm is somewhat arbitrary because the influence of the substrate grows continuously towards shorter wavelengths. However, for the discussion it is convenient to distinguish two different regimes of the photoresponse behavior.
34. Y. T. Sihvonen, J. Appl. Phys. 38, 4431 (1967). 10.1063/1.1709142
35. T. Mitsui and S. Nomura, in Ferroelectrics and Related Substances: Oxides, edited by, K.-H. Hellwege, and, A. M. Hellwege, Landolt-Börnstein, New Series, Group III, Vol. 16a (Springer, New York, 1981).