Time-resolved optical studies of spin and quasiparticle dynamics in colossal magnetoresistance materials: La0.67 Ca0.33 MnO3, La0.67 Sr0.33 MnO3, and Sr2 FeMoO6

Physical Review B - Condensed Matter and Materials Physics

Volumn 78, Issue 1, 2008, Pages

  Ren, Y H ^a   Ebrahim, M ^a   Zhao, H B ^b   Lupke G ^b   Xu, Z A ^c   Adyam, V ^d,e   Li, Qi ^d  

^a CITY UNIVERSITY OF NEW YORK   (United States)

^b The College of William and Mary   (United States)

^c ZHEJIANG UNIVERSITY   (China)

^d PENNSYLVANIA STATE UNIVERSITY   (United States)

^e INDIAN INSTITUTE OF TECHNOLOGY   (India)

Author keywords

[No Author keywords available]

Indexed keywords

EID: 47349122266     PISSN: 10980121     EISSN: 1550235X     Source Type: Journal    
DOI: 10.1103/PhysRevB.78.014408     Document Type: Article

References (35)

1. R. von Helmolt, J. Wecker, B. Holzapfel, L. Schultz, and K. Samwer, Phys. Rev. Lett. PRLTAO 0031-9007 10.1103/PhysRevLett.71.2331 71, 2331 (1993).
2. S. Jin, T. H. Tiefel, M. McCormack, R. A. Fastnacht, R. Ramesh, and L. H. Chen, Science SCIEAS 0036-8075 10.1126/science.264.5157.413 264, 413 (1994).
3. A. Asamitsu, Y. Moritomo, Y. Tomioka, T. Arima, and Y. Tokura, Nature (London) NATUAS 0028-0836 10.1038/373407a0 373, 407 (1995).
4. C. Zener, Phys. Rev. PHRVAO 0031-899X 10.1103/PhysRev.82.403 82, 403 (1951).
5. P. W. Anderson and H. Hasegawa, Phys. Rev. PHRVAO 0031-899X 10.1103/PhysRev.100.675 100, 675 (1955).
6. A. J. Millis, P. B. Littlewood, and B. I. Shraiman, Phys. Rev. Lett. PRLTAO 0031-9007 10.1103/PhysRevLett.74.5144 74, 5144 (1995).
7. J. M. De Teresa, M. R. Ibarra, P. A. Algarabel, C. Ritter, C. Marquina, J. Blasco, J. Garcia, A. del Moral, and Z. Arnold, Nature (London) NATUAS 0028-0836 10.1038/386256a0 386, 256 (1997).
8. J. Burgy, A. Moreo, and E. Dagotto, Phys. Rev. Lett. PRLTAO 0031-9007 10.1103/PhysRevLett.92.097202 92, 097202 (2004).
9. Y.-D. Chuang, A. D. Gromko, D. S. Dessau, T. Kimura, and Y. Tokura, Science SCIEAS 0036-8075 10.1126/science.1059255 292, 1509 (2001).
10. A. Moreo, S. Yunoki, and E. Dagotto, Science 283, 34 (1999). 0036-8075
11. T. Saitoh, D. S. Dessau, Y. Moritomo, T. Kimura, Y. Tokura, and N. Hamada, Phys. Rev. B PRBMDO 0163-1829 10.1103/PhysRevB.62.1039 62, 1039 (2000).
12. K.-I. Kobayashi, T. Kimura, H. Sawada, K. Terakura, and Y. Tokura, Nature (London) NATUAS 0028-0836 10.1038/27167 395, 677 (1998).
13. Y. Tomioka, T. Okuda, Y. Okimoto, R. Kumai, K.-I. Kobayashi, and Y. Tokura, Phys. Rev. B PRBMDO 0163-1829 10.1103/PhysRevB.61.422 61, 422 (2000).
14. D. D. Sarma, Priya Mahadevan, T. Saha-Dasgupta, Sugata Ray, and Ashwani Kumar, Phys. Rev. Lett. PRLTAO 0031-9007 10.1103/PhysRevLett.85.2549 85, 2549 (2000).
15. Y. G. Zhao, J. J. Li, R. Shreekala, H. D. Drew, C. L. Chen, W. L. Cao, C. H. Lee, M. Rajeswari, S. B. Ogale, R. Ramesh, G. Baskaran, and T. Venkatesan, Phys. Rev. Lett. PRLTAO 0031-9007 10.1103/PhysRevLett.81.1310 81, 1310 (1998).
16. T. Kise, T. Ogasawara, M. Ashida, Y. Tomioka, Y. Tokura, and M. Kuwata-Gonokami, Phys. Rev. Lett. PRLTAO 0031-9007 10.1103/PhysRevLett.85.1986 85, 1986 (2000).
17. K. Matsuda, A. Machida, Y. Moritomo, and A. Nakamura, Phys. Rev. B PRBMDO 0163-1829 10.1103/PhysRevB.58.R4203 58, R4203 (1998).
18. A. I. Lobad, R. D. Averitt, C. Kwon, and A. J. Taylor, Appl. Phys. Lett. APPLAB 0003-6951 10.1063/1.1329324 77, 4025 (2000).
19. A. I. Lobad, R. D. Averitt, and A. J. Taylor, Phys. Rev. B PRBMDO 0163-1829 10.1103/PhysRevB.63.060410 63, 060410 (R) (2001).
20. R. D. Averitt, A. I. Lobad, C. Kwon, S. A. Trugman, V. K. Thorsmølle, and A. J. Taylor, Phys. Rev. Lett. PRLTAO 0031-9007 10.1103/PhysRevLett.87.017401 87, 017401 (2001).
21. T. Ogasawara, M. Matsubara, Y. Tomioka, M. Kuwata-Gonokami, H. Okamoto, and Y. Tokura, Phys. Rev. B PRBMDO 0163-1829 10.1103/PhysRevB.68.180407 68, 180407 (R) (2003).
22. S. A. McGill, R. I. Miller, O. N. Torrens, A. Mamchik, I. Wei Chen, and J. M. Kikkawa, Phys. Rev. Lett. PRLTAO 0031-9007 10.1103/PhysRevLett.93.047402 93, 047402 (2004).
23. S. A. McGill, R. I. Miller, O. N. Torrens, A. Mamchik, I. Wei Chen, and J. M. Kikkawa, Phys. Rev. B PRBMDO 0163-1829 10.1103/PhysRevB.71.075117 71, 075117 (2005).
24. H. S. Wang and Qi Li, Appl. Phys. Lett. APPLAB 0003-6951 10.1063/1.122461 73, 2360 (1998)
25. H. S. Wang, E. Wertz, Y. F. Hu, and Qi Li, J. Appl. Phys. JAPIAU 0021-8979 10.1063/1.373002 87, 7409 (2000).
26. C. S. Hong, W. S. Kim, E. O. Chi, K. W. Lee, and N. H. Hur, Chem. Mater. CMATEX 0897-4756 10.1021/cm0003931 12, 3509 (2000).
27. Yuhang Ren, G. Lüpke, Yufeng Hu, Qi Li, C. S. Hong, N. H. Hur, and R. Merlin, Phys. Rev. B PRBMDO 0163-1829 10.1103/PhysRevB.74.012405 74, 012405 (2006).
28. We estimate the ∼1 μs relaxation time according to the relative magnitude of the negative transient reflectivity signal before the zero time-delay and at 1 ns position.
29. Since the magnitude of the transient reflectivity signal changes dramatically with applied external magnetic field and from sample to sample, we normalized the negative signal according to the peak value (when the negative signal reaches its maximum) for comparison. The normalization does not change the physical effect of the negative component.
30. Y. H. Ren, H. B. Zhao, G. Lüpke, Y. F. Hu and Qi Li, J. Appl. Phys. JAPIAU 0021-8979 10.1063/1.1447289 91, 7514 (2002).
31. J.-H. Park, C. T. Chen, S.-W. Cheong, W. Bao, G. Meigs, V. Chakarian, and Y. U. Idzerda, Phys. Rev. Lett. PRLTAO 0031-9007 10.1103/PhysRevLett.76.4215 76, 4215 (1996).
32. R. H. Heffner, J. E. Sonier, D. E. MacLaughlin, G. J. Nieuwenhuys, G. M. Luke, Y. J. Uemura, W. Ratcliff, S.-W. Cheong, and G. Balakrishnan, Phys. Rev. B PRBMDO 0163-1829 10.1103/PhysRevB.63.094408 63, 094408 (2001).
33. J. S. Dodge, A. B. Schumacher, J.-Y. Bigot, D. S. Chemla, N. Ingle, and M. R. Beasley, Phys. Rev. Lett. PRLTAO 0031-9007 10.1103/PhysRevLett.83.4650 83, 4650 (1999).
34. The solid curves in Fig. 2 are the combination of two power laws, which have been discussed in detail in the model part of the manuscript. The first one is the power law for T≤0.85 TC. This is mainly due to opening of the pseudogap; which is positive. The second one is the power law for 0.85 TC ≤T< TC; this is due to the loss of magnetization in the sample; which is negative.
35. For a review, see, Colossal Magnetoresistive Oxides, edited by, Y. Tokura, (Gordon and Breach, New York, 2000).