Controlled lateral anisotropy in correlated manganite heterostructures by interface-engineered oxygen octahedral coupling
Source abstract
Abstract
Controlled in-plane rotation of the magnetic easy axis in manganite heterostructures by tailoring the interface oxygen network could allow the development of correlated oxide-based magnetic tunnelling junctions with non-collinear magnetization, with possible practical applications as miniaturized high-switching-speed magnetic random access memory (MRAM) devices. Here, we demonstrate how to manipulate magnetic and electronic anisotropic properties in manganite heterostructures by engineering the oxygen network on the unit-cell level. The strong oxygen octahedral coupling is found to transfer the octahedral rotation, present in the NdGaO3 (NGO) substrate, to the La2/3Sr1/3MnO3 (LSMO) film in the interface region. This causes an unexpected realignment of the magnetic easy axis along the short axis of the LSMO unit cell as well as the presence of a giant anisotropic transport in these ultrathin LSMO films. As a result we possess control of the lateral magnetic and electronic anisotropies by atomic-scale design of the oxygen octahedral rotation.
Source: europepmc · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Magnetic and transport properties of perovskites and related materials · Electronic and Structural Properties of Oxides · Advanced Condensed Matter Physics
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (47)
Show source-provided references
1. Hwang, H. Y. et al. Emergent phenomena at oxide interfaces. Nature Mater. 11, 103–113 (2012).10.1038/nmat3223 ↗
2. 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).10.1146/annurev-conmatphys-062910-140445 ↗
3. Chakhalian, J. et al. Orbital reconstruction and covalent bonding at an oxide interface. Science 318, 1114–1117 (2007).10.1126/science.1149338 ↗
4. Ohtomo, A. & Hwang, H. Y. A high-mobility electron gas at the LaAlO3/SrTiO3 heterointerface. Nature 427, 423–426 (2004).10.1038/nature02308 ↗
5. Brinkman, A. et al. Magnetic effects at the interface between non-magnetic oxides. Nature Mater. 6, 493–496 (2007).10.1038/nmat1931 ↗
6. Tokura, Y. & Nagaosa, N. Orbital physics in transition-metal oxides. Science 288, 462–468 (2000).10.1126/science.288.5465.462 ↗
7. Dagotto, E. Complexity in strongly correlated electronic systems. Science 309, 257–262 (2005).10.1126/science.1107559 ↗
8. Aetukuri, N. B. et al. Control of the metal–insulator transition in vanadium dioxide by modifying orbital occupancy. Nature Phys. 9, 661–666 (2013).10.1038/nphys2733 ↗
9. Ward, T. Z. et al. Elastically driven anisotropic percolation in electronic phase-separated manganites. Nature Phys. 5, 885–888 (2009).10.1038/nphys1419 ↗
10. Schlom, D. G. et al. Strain tuning of ferroelectric thin films. Annu. Rev. Mater. Res. 37, 589–626 (2007).10.1146/annurev.matsci.37.061206.113016 ↗
11. Boris, A. V. et al. Dimensionality control of electronic phase transitions in nickel-oxide superlattices. Science 332, 937–940 (2011).10.1126/science.1202647 ↗
12. King, P. D. C. et al. Atomic-scale control of competing electronic phases in ultrathin LaNiO3 . Nature Nanotech. 9, 443–447 (2014).10.1038/nnano.2014.59 ↗
13. Salamon, M. B. & Jaime, M. The physics of manganites: structure and transport. Rev. Mod. Phys. 73, 583–628 (2001).10.1103/RevModPhys.73.583 ↗
14. Coey, J. M. D., Viret, M. & von Molnaír, S. Mixed-valence manganites. Adv. Phys. 48, 167–293 (1999).10.1080/000187399243455 ↗
15. Chmaissem, O. et al. Relationship between structural parameters and the Néel temperature in Sr1−xCaxMnO3 (0 < ∼ x < ∼ 1) and Sr1−yBayMnO3 (y < ∼ 0.2). Phys. Rev. B 64, 134412 (2001).10.1103/PhysRevB.64.134412 ↗
16. Radaelli, P. G. et al. Structural effects on the magnetic and transport properties of perovskite A1−xAx′MnO3 (x = 0.25, 0.30). Phys. Rev. B 56, 8265–8276 (1997).10.1103/PhysRevB.56.8265 ↗
17. Alonso, J. A., Martínez-Lope, M. J., Casais, M. T., Aranda, M. A. G. & Fernández-Díaz, M. T. Metal–insulator transitions, structural and microstructural evolution of RNiO3 (R = Sm, Eu, Gd, Dy, Ho, Y) perovskites: evidence for room-temperature charge disproportionation in monoclinic HoNiO3 and YNiO3 . J. Am. Chem. Soc. 121, 4754–4762 (1999).10.1021/ja984015x ↗
18. Garcia-Munoz, J. L., Fontcuberta, J., Suaaidi, M. & Obradors, X. Bandwidth narrowing in bulk L2/3A1/3MnO3 magnetoresistive oxides. J. Phys. Condens. Matter 8, L787–L794 (1996).10.1088/0953-8984/8/50/003 ↗
19. Ding, Y. et al. Pressure-induced magnetic transition in manganite (La0.75Ca0.25MnO3). Phys. Rev. Lett. 102, 237201 (2009).10.1103/PhysRevLett.102.237201 ↗
20. Zhai, X. F. et al. Correlating interfacial octahedral rotations with magnetism in (LaMnO3 + δ)N/(SrTiO3)N superlattices. Nature Commun. 5, 4283 (2014).10.1038/ncomms5283 ↗
21. Rondinelli, J. M. & Spaldin, N. A. Structure and properties of functional oxide thin films: insights from electronic-structure calculations. Adv. Mater. 23, 3363–3381 (2011).10.1002/adma.201101152 ↗
22. Lee, J. H. et al. Dynamic layer rearrangement during growth of layered oxide films by molecular beam epitaxy. Nature Mater. 13, 879–883 (2014).10.1038/nmat4039 ↗
23. Rondinelli, J. M., May, S. J. & Freeland, J. W. Control of octahedral connectivity in perovskite oxide heterostructures: an emerging route to multifunctional materials discovery. MRS Bull. 37, 261–270 (2012).10.1557/mrs.2012.49 ↗
24. Kinyanjui, M. K. et al. Lattice distortions and octahedral rotations in epitaxially strained LaNiO3/LaAlO3 superlattices. Appl. Phys. Lett. 104, 221909 (2014).10.1063/1.4881557 ↗
25. Borisevich, A. Y. et al. Suppression of octahedral tilts and associated changes in electronic properties at epitaxial oxide heterostructure interfaces. Phys. Rev. Lett. 105, 087204 (2010).10.1103/PhysRevLett.105.087204 ↗
26. He, J., Borisevich, A. Y., Kalinin, S. V., Pennycook, S. J. & Pantelides, S. T. Control of octahedral tilts and magnetic properties of perovskite oxide heterostructures by substrate symmetry. Phys. Rev. Lett. 105, 227203 (2010).10.1103/PhysRevLett.105.227203 ↗
27. Aso, R., Kan, D., Shimakawa, Y. & Kurata, H. Atomic level observation of octahedral distortions at the perovskite oxide heterointerface. Sci. Rep. 3, 2214 (2013).10.1038/srep02214 ↗
28. Chen, Y. B. et al. Interface structure and strain relaxation in BaTiO3 thin films grown on GdScO3 and DyScO3 substrates with buried coherent SrRuO3 layer. Appl. Phys. Lett. 91, 252906 (2007).10.1063/1.2819684 ↗
29. Glazer, A. M. Classification of tilted octahedral in perovskites. Acta Crystallogr. B 28, 3384–3392 (1972).10.1107/S0567740872007976 ↗
30. Vasylechko, L. et al. The crystal structure of NdGaO3 at 100 K and 293 K based on synchrotron data. J. Alloys Compd. 297, 46–52 (2000).10.1016/S0925-8388(99)00603-9 ↗
31. Liao, Z., Huijben, M., Koster, G. & Rijnders, G. Uniaxial magnetic anisotropy induced low field anomalous anisotropic magnetoresistance in manganite thin films. Appl. Phys. Lett. Mater. 2, 096112 (2014).
32. Ovsyannikov, S. V. et al. Perovskite-like Mn2O3: a path to new manganites. Angew. Chem. Int. Ed. 52, 1494–1498 (2013).10.1002/anie.201208553 ↗
33. Boschker, H. et al. Strong uniaxial in-plane magnetic anisotropy of (001)- and (011)-oriented La0.67Sr0.33MnO3 thin films on NdGaO3 substrates. Phys. Rev. B 79, 214425 (2009).10.1103/PhysRevB.79.214425 ↗
34. Macke, S. et al. Element specific monolayer depth profiling. Adv. Mater. 26, 6554–6559 (2014).10.1002/adma.201402028 ↗
35. Park, J. H. et al. Magnetic properties at surface boundary of a half-metallic ferromagnet La0.7Sr0.3MnO3 . Phys. Rev. Lett. 81, 1953–1956 (1998).10.1103/PhysRevLett.81.1953 ↗
36. Huijben, M. et al. Critical thickness and orbital ordering in ultrathin La0.7Sr0.3MnO3 films. Phys. Rev. B 78, 094413 (2008).10.1103/PhysRevB.78.094413 ↗
37. Wang, B. M. et al. Oxygen-driven anisotropic transport in ultra-thin manganite films. Nature Commun. 4, 2778 (2013).10.1038/ncomms3778 ↗
38. Vailionis, A. et al. Misfit strain accommodation in epitaxial ABO3 perovskites: lattice rotations and lattice modulations. Phys. Rev. B 83, 064101 (2011).10.1103/PhysRevB.83.064101 ↗
39. Medarde, M. et al. High-pressure neutron-diffraction study of the metallization process in PrNiO3 . Phys. Rev. B 52, 9248–9258 (1995).10.1103/PhysRevB.52.9248 ↗
40. Dong, S. et al. Highly anisotropic resistivities in the double-exchange model for strained manganites. Phys. Rev. B 82, 159902 (2010).10.1103/PhysRevB.82.159902 ↗
41. Brataas, A., Kent, A. D. & Ohno, H. Current-induced torques in magnetic materials. Nature Mater. 11, 372–381 (2012).10.1038/nmat3311 ↗
42. Brataasa, A., Bauer, G. E. W. & Kelly, P. J. Non-collinear magnetoelectronics. Phys. Rep. 427, 157–255 (2006).10.1016/j.physrep.2006.01.001 ↗
43. Kan, D. et al. Tuning magnetic anisotropy by interfacially engineering the oxygen coordination environment in a transition metal oxide. Nature Mater. http://dx.doi.org/10.1038/nmat4580 (2016).10.1038/nmat4580 ↗
44. Macke, S. & Goering, E. Magnetic reflectometry of heterostructures. J. Phys. Condens. Matter 26, 363201 (2014).10.1088/0953-8984/26/36/363201 ↗
45. Hawthorn, D. G. et al. An in-vacuum diffractometer for resonant elastic soft X-ray scattering. Rev. Sci. Instrum. 82, 073104 (2011).10.1063/1.3607438 ↗
46. Zhong, Z., Toth, A. & Held, K. Theory of spin–orbit coupling at LaAlO3/SrTiO3 interfaces and SrTiO3 surfaces. Phys. Rev. B 87, 161102 (2013).10.1103/PhysRevB.87.161102 ↗
47. Yamasaki, A., Feldbacher, M., Yang, Y.-F., Andersen, O. K. & Held, K. Pressure-induced metal–insulator transition in LaMnO3 is not of Mott-Hubbard type. Phys. Rev. Lett. 96, 166401 (2006).10.1103/PhysRevLett.96.166401 ↗