Aspects of metallic low-temperature transport in Mott-insulator/band- insulator superlattices: Optical conductivity and thermoelectricity

Physical Review B - Condensed Matter and Materials Physics

Volumn 77, Issue 24, 2008, Pages

  Rüegg, Andreas ^a   Pilgram, Sebastian ^a   Sigrist, Manfred ^a  

^a ETH ZURICH   (Switzerland)

Author keywords

[No Author keywords available]

Indexed keywords

EID: 45749110605     PISSN: 10980121     EISSN: 1550235X     Source Type: Journal    
DOI: 10.1103/PhysRevB.77.245118     Document Type: Article

References (56)

1. A. Ohtomo, D. A. Muller, J. L. Grazul, and H. Y. Hwang, Nature (London) NATUAS 0028-0836 10.1038/nature00977 419, 378 (2002).
2. A. Ohtomo and H. Y. Hwang, Nature (London) NATUAS 0028-0836 10.1038/nature02308 427, 423 (2004).
3. S. Thiel, G. Hammerl, A. Schmehl, C. W. Schneider, and J. Mannhart, Science SCIEAS 0036-8075 10.1126/science.1131091 313, 1942 (2006).
4. N. Reyren, Science SCIEAS 0036-8075 10.1126/science.1146006 317, 1196 (2007).
5. W. C. Sheets, B. Mercey, and W. Prellier, Appl. Phys. Lett. APPLAB 0003-6951 10.1063/1.2805222 91, 192102 (2007).
6. Y. Hotta, T. Susaki, and H. Y. Hwang, Phys. Rev. Lett. PRLTAO 0031-9007 10.1103/PhysRevLett.99.236805 99, 236805 (2007).
7. W.-C. Lee and A. H. MacDonald, Phys. Rev. B PRBMDO 0163-1829 10.1103/PhysRevB.74.075106 74, 075106 (2006).
8. W.-C. Lee and A. H. MacDonald, Phys. Rev. B PRBMDO 0163-1829 10.1103/PhysRevB.76.075339 76, 075339 (2007).
9. H. Ishida and A. Liebsch, Phys. Rev. B PRBMDO 0163-1829 10.1103/PhysRevB.77.115350 77, 115350 (2008).
10. S. Yunoki, A. Moreo, E. Dagotto, S. Okamoto, S. S. Kancharla, and A. Fujimori, Phys. Rev. B PRBMDO 0163-1829 10.1103/PhysRevB.76.064532 76, 064532 (2007).
11. S. Okamoto and A. J. Millis, Nature (London) NATUAS 0028-0836 10.1038/nature02450 428, 630 (2004).
12. S. Okamoto, A. J. Millis, and N. A. Spaldin, Phys. Rev. Lett. PRLTAO 0031-9007 10.1103/PhysRevLett.97.056802 97, 056802 (2006).
13. S. Okamoto and A. J. Millis, Phys. Rev. B PRBMDO 0163-1829 10.1103/PhysRevB.70.075101 70, 075101 (2004).
14. S. Okamoto and A. J. Millis, Phys. Rev. B PRBMDO 0163-1829 10.1103/PhysRevB.72.235108 72, 235108 (2005).
15. S. Okamoto and A. J. Millis, Phys. Rev. B PRBMDO 0163-1829 10.1103/PhysRevB.70.241104 70, 241104 (R) (2004).
16. S. S. Kancharla and E. Dagotto, Phys. Rev. B PRBMDO 0163-1829 10.1103/PhysRevB.74.195427 74, 195427 (2006).
17. A. Rüegg, S. Pilgram, and M. Sigrist, Phys. Rev. B PRBMDO 0163-1829 10.1103/PhysRevB.75.195117 75, 195117 (2007).
18. J. K. Freericks, Transport in Multilayered Nanostructures: The Dynamical Mean-Field Approach (Imperial College, London, 2006).
19. K. Shibuya, T. Ohnishi, M. Kawasaki, H. Koinuma, and M. Lippmaa, Jpn. J. Appl. Phys., Part 2 JAPLD8 0021-4922 10.1143/JJAP.43.L1178 43, L1178 (2004).
20. S. S. A. Seo, W. S. Choi, H. N. Lee, L. Yu, K. W. Kim, C. Bernhard, and T. W. Noh, Phys. Rev. Lett. PRLTAO 0031-9007 10.1103/PhysRevLett.99.266801 99, 266801 (2007).
21. T. Okuda, K. Nakanishi, S. Miyasaka, and Y. Tokura, Phys. Rev. B PRBMDO 0163-1829 10.1103/PhysRevB.63.113104 63, 113104 (2001).
22. P. M. Chaikin and G. Beni, Phys. Rev. B PLRBAQ 0556-2805 10.1103/PhysRevB.13.647 13, 647 (1976).
23. K. Miyake and H. Kohno, J. Phys. Soc. Jpn. JUPSAU 0031-9015 10.1143/JPSJ.74.254 74, 254 (2005).
24. V. Zlatic, B. Horvatic, I. Milat, B. Coqblin, G. Czycholl, and C. Grenzebach, Phys. Rev. B PRBMDO 0163-1829 10.1103/PhysRevB.68.104432 68, 104432 (2003).
25. I. Milat, Ph.D. thesis, ETH Zurich, 2006.
26. W. Koshibae, K. Tsutsui, and S. Maekawa, Phys. Rev. B PRBMDO 0163-1829 10.1103/PhysRevB.62.6869 62, 6869 (2000).
27. L. D. Hicks and M. S. Dresselhaus, Phys. Rev. B PRBMDO 0163-1829 10.1103/PhysRevB.47.12727 47, 12727 (1993).
28. H. Ohta, Nat. Mater. NMAACR 1476-1122 10.1038/nmat1821 6, 129 (2007).
29. J. Chakhalian, J. W. Freeland, H.-U. Habermeier, G. Cristiani, G. Khaliullin, M. van Veenendaal, and B. Keimer, Science SCIEAS 0036-8075 10.1126/science.1149338 318, 1114 (2007).
30. W. F. Brinkman and T. M. Rice, Phys. Rev. B PLRBAQ 0556-2805 10.1103/PhysRevB.2.4302 2, 4302 (1970).
31. In Ref. the authors claim that in the SrTiO3 /La TiO3 heterostructure, the superlattice geometry changes the bandwidth of the Mott-insulating material leading to a bandwidth controlled insulator-metal transition and consequently U< Uc.
32. M. Potthoff and W. Nolting, Phys. Rev. B PRBMDO 0163-1829 10.1103/PhysRevB.60.7834 60, 7834 (1999).
33. S. Schwieger, M. Potthoff, and W. Nolting, Phys. Rev. B PRBMDO 0163-1829 10.1103/PhysRevB.67.165408 67, 165408 (2003).
34. G. Kotliar and A. E. Ruckenstein, Phys. Rev. Lett. PRLTAO 0031-9007 10.1103/PhysRevLett.57.1362 57, 1362 (1986).
35. R. Frésard and P. Wölfle, Int. J. Mod. Phys. B 6, 237 (1992). 0217-9792
36. R. Frésard, H. Ouerdane, and T. Kopp, Nucl. Phys. B NUPBBO 0550-3213 10.1016/j.nuclphysb.2007.05.025 785, 286 (2007).
37. M. Raczkowski, R. Fresard, and A. M. Oles, Phys. Rev. B PRBMDO 0163-1829 10.1103/PhysRevB.73.174525 73, 174525 (2006).
38. G. Seibold, E. Sigmund, and V. Hizhnyakov, Phys. Rev. B PRBMDO 0163-1829 10.1103/PhysRevB.57.6937 57, 6937 (1998).
39. D. Vollhardt, Rev. Mod. Phys. RMPHAT 0034-6861 10.1103/RevModPhys.56.99 56, 99 (1984).
40. D. Pines and P. Nozières, The Theory of Quantum Liquids (Benjamin, New York, 1966).
41. G. D. Mahan and J. O. Sofo, Proc. Natl. Acad. Sci. U.S.A. PNASA6 0027-8424 10.1073/pnas.93.15.7436 93, 7436 (1996).
42. J. M. Ziman, Electrons and Phonons (Oxford University Press, Oxford, 1960).
43. G. D. Mahan, Many-Particle Physics (Plenum, New York, 1981).
44. It is worth noting that in Ref. the same result for Dν was obtained by considering twisted boundary conditions in the clean system at zero temperature, as originally formulated by Kohn (Ref.).
45. N. W. Ashcroft and N. D. Mermin, Solid State Physics (Saunders, Philadelphia, 1976).
46. Such a 1/ Zν renormalization of the Seebeck coefficient is also known to occur in the Fermi-liquid regime of the homogeneous Hubbard model (see, e.g., Ref.).
47. We note that a similar term is also found in heavy-Fermion systems due to the hybridization of the correlated f levels with the conduction band (see, e.g., Refs. or).
48. Y. Tokura, Y. Taguchi, Y. Okada, Y. Fujishima, T. Arima, K. Kumagai, and Y. Iye, Phys. Rev. Lett. PRLTAO 0031-9007 10.1103/PhysRevLett.70.2126 70, 2126 (1993).
49. D. A. Broido and T. L. Reinecke, Phys. Rev. B PRBMDO 0163-1829 10.1103/PhysRevB.51.13797 51, 13797 (1995).
50. G. Pàlsson and G. Kotliar, Phys. Rev. Lett. PRLTAO 0031-9007 10.1103/PhysRevLett.80.4775 80, 4775 (1998).
51. M. Jonson and G. D. Mahan, Phys. Rev. B PRBMDO 0163-1829 10.1103/PhysRevB.21.4223 21, 4223 (1980).
52. J. K. Freericks, V. Zlatic, and A. M. Shvaika, Phys. Rev. B PRBMDO 0163-1829 10.1103/PhysRevB.75.035133 75, 035133 (2007).
53. O. Betbeder-Matibet and P. Nozieres, Ann. Phys. (N.Y.) APNYA6 0003-4916 10.1016/0003-4916(66)90275-2 37, 17 (1966).
54. W. Kohn, Phys. Rev. PHRVAO 0031-899X 10.1103/PhysRev.133.A171 133, A171 (1964).
55. C. Sanchez-Castro, K. S. Bedell, and B. R. Cooper, Phys. Rev. B PRBMDO 0163-1829 10.1103/PhysRevB.47.6879 47, 6879 (1993).
56. W. Mao and K. S. Bedell, Phys. Rev. B PRBMDO 0163-1829 10.1103/PhysRevB.59.R15590 59, R15590 (1999).