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CONDUCTING OXIDE INTERFACES

2D hole gas seen

Nature Materials volume 17, pages 215–216 (2018)Cite this article

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A p-type metallic sheet forms between two oxide insulators, LaAlO3 and SrTiO3. Suppression of oxygen vacancies in SrTiO3 plays a critical role in forming this sheet.

To understand why this is important, we note four known possible ways to create mobile charges at epitaxial interfaces: type I, LAO on TiO2-terminated STO with n-type interface1; type II, LAO on SrO-terminated STO with p-type interface1,5; type III, trilayer structure of STO capped LAO grown on TiO2-terminated STO with parallel p-type (top) and n-type (bottom) interfaces (Fig. 1b)4,5,6,7; type IV, trilayer structure of STO-capped LAO grown on SrO-terminated STO with parallel n-type (top) and p-type (bottom) interfaces4,5. The success of Lee and co-authors comes from careful control of the type III structure (Fig. 1a,b).

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References

  1. Ohtomo, A. & Hwang, H. Y. Nature 427, 423–426 (2004).

    Article  CAS  Google Scholar 

  2. Reyren, N. et al. Science 317, 1196–1199 (2007).

    Article  CAS  Google Scholar 

  3. Brinkman, A. et al. Nat. Mater. 6, 493–496 (2007).

    Article  CAS  Google Scholar 

  4. Nakagawa, N., Hwang, H. Y. & Muller, D. A. Nat. Mater. 5, 204–209 (2006).

    Article  CAS  Google Scholar 

  5. Huijben, M. et al. Nat. Mater. 5, 556–560 (2006).

    Article  CAS  Google Scholar 

  6. Pentcheva, R. et al. Phys. Rev. Lett. 104, 166804 (2010).

    Article  CAS  Google Scholar 

  7. Lee, H. et al. Nat. Mater. https://doi.org/10.1038/s41563-017-0002-4(2018).

  8. Chen, H., Kolpak, A. M. & Ismail-Beigi, S. Phys. Rev. B 79, 161402(R) (2009).

    Article  Google Scholar 

  9. Kalabukhov, A. et al. Phys. Rev. B 75, 121404 (2007).

    Article  Google Scholar 

  10. Chen, Y. Z. et al. Nat. Mater. 14, 801–806 (2015).

    Article  CAS  Google Scholar 

  11. Trier, F. et al. Phys. Rev. Lett. 117, 096804 (2016).

    Article  Google Scholar 

  12. Lozovik, Yu. E. & Yudson, V. I. Zh. Eksp. Teor. Fiz. 71, 738–753 (1976).

    Google Scholar 

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  1. Department of Energy Conversion and Storage, Technical University of Denmark, Roskilde, Denmark

    Yunzhong Chen & Nini Pryds

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  1. Yunzhong Chen
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  2. Nini Pryds
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Correspondence to Yunzhong Chen or Nini Pryds.

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Chen, Y., Pryds, N. 2D hole gas seen. Nature Mater 17, 215–216 (2018). https://doi.org/10.1038/s41563-018-0025-5

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