Ferromagnetic exchange, spin-orbit coupling and spiral magnetism at the LaAlO 3/SrTiO 3 interface

Nature Physics

Volumn 9, Issue 10, 2013, Pages 626-630

  Banerjee, Sumilan ^a   Erten, Onur ^a   Randeria, Mohit ^a  

^a OHIO STATE UNIVERSITY   (United States)

Author keywords

[No Author keywords available]

Indexed keywords

ALUMINUM COMPOUNDS; ELECTRONIC PROPERTIES; FERROMAGNETIC MATERIALS; FERROMAGNETISM; GROUND STATE; LANTHANUM COMPOUNDS; MAGNETOMETRY; QUANTUM INTERFERENCE DEVICES; SQUIDS; STRONTIUM COMPOUNDS; STRONTIUM TITANATES; TITANIUM COMPOUNDS;

CONDUCTION ELECTRONS; FERROMAGNETIC EXCHANGE; MICROSCOPIC THEORY; NON-MAGNETIC MATERIALS; QUALITATIVE ASPECTS; RASHBA SPIN-ORBIT COUPLING; SPIN-ORBIT COUPLINGS; TORQUE MAGNETOMETRY;

TITANIUM COMPOUNDS; LANTHANUM COMPOUNDS;

EID: 84885432361     PISSN: 17452473     EISSN: 17452481     Source Type: Journal    
DOI: 10.1038/nphys2702     Document Type: Article

References (30)

1. Ohtomo, A. & Hwang, H. Y. A high-mobility electron gas at the LaAlO3=SrTiO3 heterointerface. Nature 427, 423-426 (2004). (Pubitemid 38168490)
2. Thiel, S., Hammerl, G., Schmehl, A., Schneider, C. W. & Mannhart, J. Tunable quasi two-dimensional electron gases in oxide heterostructures. Science 313, 1942-1945 (2006). (Pubitemid 44497997)
3. Zubko, P., Gariglio, S., Gabay, M., Ghosez, P. & Triscone, J-M. Interface physics in complex oxide heterostructures. Annu. Rev. Condens. Matter Phys. 2, 141-165 (2011).
4. Brinkman, A. et al. Magnetic effects at the interface between non-magnetic oxides. Nature Mater. 6, 493-496 (2007). (Pubitemid 47143453)
5. Li, L., Richter, C., Mannhart, J. & Ashoori, R. C. Coexistence of magnetic order and two-dimensional superconductivity at LaAlO3=SrTiO3 interfaces. Nature Phys. 7, 762-766 (2011).
6. Bert, J. et al. Direct imaging of the coexistence of ferromagnetism and superconductivity at the LaAlO3=SrTiO3 interface. Nature Phys. 7, 767-771 (2011).
7. Ariando, et al. Electronic phase separation at the LaAlO3=SrTiO3 interface. Nature Commun. 2, 188-194 (2011).
8. Dikin, D. A., Mehta, M., Bark, C. W., Folkman, C.M., Eom, C. B. & Chandrasekhar, V. Coexistence of superconductivity and ferromagnetism in two dimensions. Phys. Rev. Lett. 107, 56802-56805 (2011).
9. Shalom, M. B., Ron, A., Palevski, A. & Dagan, Y. Shubnikov-De Haas oscillations in SrTiO3/LaAlO3 interface. Phys. Rev. Lett. 105, 206401 (2010).
10. Lerer, S., Shalom, M. B., Deutscher, G. & Dagan, Y. Low-temperature dependence of the thermomagnetic transport properties of the SrTiO3/LaAlO3 interface. Phys. Rev. B 84, 075423 (2011).
11. Joshua, A., Pecker, S., Ruhman, J., Altman, E. & Ilani, S. A universal critical density underlying the physics of electrons at the LaAlO3/SrTiO3 interface. Nature Commun. 3, 1129 (2012).
12. Caviglia, A. D., Gabay, M., Gariglio, S., Reyren, N., Cancellieri, C. & Triscone, J-M. Tunable Rashba spin-orbit interaction at oxide interfaces. Phys. Rev. Lett. 104, 126803 (2010).
13. Pentcheva, R. & Pickett, W. E. Charge localization or itineracy at LaAlO3=SrTiO3 interfaces: Hole polarons, oxygen vacancies, and mobile electrons. Phys. Rev. B 74, 035112 (2006).
14. Delugas, P. et al. Spontaneous 2-dimensional carrier confinement at the n-type SrTiO3=LaAlO3 interface. Phys. Rev. Lett. 106, 166807 (2011).
15. Salluzzo, M. et al. Orbital reconstruction and the two-dimensional electron gas at the LaAlO3=SrTiO3 interface. Phys. Rev. Lett. 102, 166804 (2009).
16. Sing, M. et al. Profiling the interface electron gas of LaAlO3=SrTiO3 heterostructures with hard X-ray photoelectron spectroscopy. Phys. Rev. Lett. 102, 176805 (2009).
17. Berner, G. et al. LaAlO3=SrTiO3 oxide heterostructures studied by resonant inelastic X-ray scattering. Phys. Rev. B 82, 241405 (2010).
18. Popovic, Z. S., Satpathy, S. & Martin, R. M. Origin of the two-dimensional electron gas carrier density at the LaAlO3 on SrTiO3 interface. Phys. Rev. Lett. 101, 256801 (2008).
19. Hirayama, M., Miyake, T. & Imada, M. Ab initio Low-energy model of transition-metal-oxide heterostructure LaAlO3=SrTiO3. J. Phys. Soc. Jpn 81, 084708 (2012).
20. Santander-Syro, A. F. et al. Two-dimensional electron gas with universal subbands at the surface of SrTiO3. Nature 469, 189-194 (2011).
21. Fête, A., Gariglio, S., Caviglia, A. D., Triscone, J-M. & Gabay, M. Rashba induced magnetoconductance oscillations in the LaAlO3-SrTiO3 heterostructure. Phys. Rev. B 86, 201105 (2012).
22. Florens, S. & Georges, A. Slave-rotor mean-field theories of strongly correlated systems and the Mott transition in finite dimensions. Phys. Rev. B 70, 035114 (2004).
23. Pentcheva, R. & Pickett, W. E. Ionic relaxation contribution to the electronic reconstruction at the n-type LaAlO3=SrTiO3 interface. Phys. Rev. B 78, 205106 (2008).
24. Imada, M., Fujimori, A. & Tokura, Y. Metal-insulator transitions. Rev. Mod. Phys. 70, 1039-1263 (1998).
25. Nussinov, Z., Biskup, M., Chayes, L. & van den Brink, J. Orbital order in classical models of transition-metal compounds. Eur. Phys. Lett. 67, 990-996 (2004). (Pubitemid 39315692)
26. Chen,G&Balents, L. Ferromagnetism in itinerant two-dimensional t2g systems. Phys. Rev. Lett. 110, 206401 (2013).
27. Michaeli, K, Potter, A. C. & Lee, P. A. Superconducting and ferromagnetic phases in SrTiO3/LaAlO3 oxide interface structures: possibility of finite momentum pairing. Phys. Rev. Lett. 108, 117003 (2012).
28. Camjayi, A., Haule, K., Dobrosavljevi¢, V. & Kotliar, G. Coulomb correlations and the Wigner-Mott transition. Nature Phys. 4, 932-935 (2008).
29. Nanda, B. R. K. & Satpathy, S. Electronic phases and phase separation in the Hubbard-Holstein model of a polar interface. Phys. Rev. B 83, 195114 (2011).
30. Khalsa, G., Lee, B. & MacDonald, A. H. Theory of t2g electron-gas Rashba interactions. Preprint at http://arxiv.org/abs/1301.2784 (2013).