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Strain-induced modulation of oxygen vacancies and magnetic properties in La0.5Sr0.5MnO3 thin films

  • Ji Ma (a1), Yujun Zhang (a1), Liang Wu (a1), Chuangye Song (a2), Qinghua Zhang (a1), Jinxing Zhang (a2), Jing Ma (a1) and Ce-Wen Nan (a1)...


Oxygen vacancies have a significant impact on the structure and electrical/magnetic properties of doped manganites. Magnetic La0.5Sr0.5MnO3 (LSMO) films were epitaxial grown on (001) SrTiO3 substrate by pulsed laser deposition. Structural studies from the x-ray diffraction suggest that the as-grown films are fully constrained by the substrate with the thickness ranging from 8 to 40 nm. By examining the valence of Mn by x-ray photoelectron spectroscopy and x-ray absorption spectroscopy, we find the ratio of Mn4+/Mn3+ increases along with the increased film thickness, which implies that the oxygen vacancies concentration induced by tensile strain correspondingly decreases. Therefore, the magnetization of LSMO is depressed with the exchange bias effect arising, and the electrical conductivity decreases significantly. This work builds a bridge between modulation of electric/magnetic properties and epitaxial strain in LSMO films.


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1. Tokura, Y.: Critical features of colossal magnetoresistive manganites. Rep. Prog. Phys. 69, 797851 (2006).
2. Ahn, K.H., Lookman, T., and Bishop, A.R.: Strain-induced metal–insulator phase coexistence in perovskite manganites. Nature 428, 401404 (2004).
3. Uehara, M., Mori, S., Chen, C.H., and Cheong, S.-W.: Percolative phase separation underlies colossal magnetoresistance in mixed-valent manganites. Nature 399, 560563 (1999).
4. Yan, K.L., Fan, R.H., Chen, M., Sun, K., Wei, Y.L., Li, H., Pan, S.B. and Yu, M.X.: Perovskite (La,Sr)MnO3 with tunable electrical properties by the Sr-doping effect. J. Alloys Compd. 628, 429432 (2015).
5. Marín, L., Rodríguez, L.A., Magén, C., Snoeck, E., Arras, R., Lucas, I., Morellón, L., Algarabel, P.A., De Teresa, J.M. and Barra, M.R.I.: Observation of the strain induced magnetic phase segregation in manganite thin films. Nano Lett. 15, 492497 (2015).
6. Santos, T.S., May, S.J., Robertson, J.L., and Bhattacharya, A.: Tuning between the metallic antiferromagnetic and ferromagnetic phases of La1–x Sr x MnO3 near x = 0.5 by digital synthesis. Phys. Rev. B 80, 155114 (2009).
7. Tebano, A., Aruta, C., Medaglia, P.G., Tozzi, F., Balestrino, G., Sidorenko, A.A., Allodi, G., De Renzi, R., Ghiringhelli, G., Dallera, C., Braicovich, L., and Brookes, N.B.: Strain-induced phase separation in La0.7Sr0.3MnO3 thin films. Phys. Rev. B 74, 245116 (2006).
8. Pesquera, D., Herranz, G., Barla, A., Pellegrin, E., Bondino, F., Magnano, E., Sánchez, F., and Fontcuberta, J.: Surface symmetry-breaking and strain effects on orbital occupancy in transition metal perovskite epitaxial films. Nat. Commun. 3, 542555 (2012).
9. Muduli, P.K., Bose, S.K., and Budhani, R.C., Stress-induced competing ferromagnetic and antiferromagnetic orders in epitaxial films of A-type antiferromagnet La0.45Sr0.55MnO3 . J. Phys.: Condens. Matter 19, 226024 (2007).
10. Tebano, A., Aruta, C., Sanna, S., Medaglia, P.G., Balestrino, G., Sidorenko, A.A., De Renzi, R., Ghiringhelli, G., Braicovich, L., Bisogni, V., and Brookes, N.B.: Evidence of orbital reconstruction at interfaces in ultrathin La0.67Sr0.33MnO3 films. Phys. Rev. Lett. 100, 137401 (2008).
11. Gao, Y., Wang, J.J., Wu, L., Bao, S.Y., Shen, Y., Lin, Y.H., and Nan, C.-W.: Tunable magnetic and electrical behaviors in perovskite oxides by oxygen octahedral tilting. Sci. China Mater. 58, 302312 (2015).
12. Majumdar, S. and van Dijken, S.: Pulsed laser deposition of La1–xSrxMnO3: thin-film properties and spintronic applications. J. Phys. D: Appl. Phys. 47, 034010 (2014).
13. Vaz, C.A.F., Walker, F.J., Ahn, C.H., and Ismail-Beigi, S.: Intrinsic interfacial phenomena in manganite heterostructures. J. Phys.: Condens. Matter. 27, 123001 (2015).
14. Shi, L., Yang, H.P., and Zhou, S.M.: Influence of annealing atmosphere on the properties of La0.5Sr0.5MnO3 . Solid State Commun. 150, 371 (2010).
15. Patil, S.I., Bhagat, S.M., Shu, Q.Q., Lofland, S.E., Ogale, S.B., Smolyaninova, V.N., Zhang, X., Palmer, B.S., Decca, R.S., Brown, F.A., Drew, H.D., Greene, R.L., Troyanchuk, I.O., and McCarroll, W.H.: Indications of phase separation in polycrystalline La1–xSrxMnO3 for x≈0.5. Phys. Rev. B 62, 9548 (2000).
16. Vaz, C.A.F., Moyer, J.A., Arena, D.A., Ahn, C.H., and Henrich, V.E.: Magnetic and electronic structure of ultrathin La1−xSrxMnO3 films at half doping. Phys. Rev. B 90, 024414 (2014).
17. Jiang, L., Choi, W.S., Jeen, H., Dong, S., Kim, Y., Han, M.G., Zhu, Y.M., Kalinin, S.V., Dagotto, E., and Egami, T.: Tunneling electroresistance induced by interfacial phase transitions in ultrathin oxide heterostructures. Nano Lett. 13, 58375843 (2013).
18. Yin, Y.W., Burton, J.D., Kim, Y.-M., Borisevich, A.Y., Pennycook, S.J., Yang, S.M., Noh, T.W., Gruverman, A., Li, X.G., Tsymbal, E.Y., and Li, Q.: Enhanced tunnelling electroresistance effect due to a ferroelectrically induced phase transition at a magnetic complex oxide interface. Nat. Mater. 12, 397402 (2013).
19. Aschauer, U., Pfenninger, R., Selbach, S.M., Grande, T. and Spaldin, N.A.: Strain-controlled oxygen vacancy formation and ordering in CaMnO3 . Phys. Rev. B 88, 054111 (2013).
20. Petrie, J.R., Mitra, C., Jeen, H., Choi, W.S., Meyer, T.L., Reboredo, F.A., Freeland, J.W., Eres, G., and Lee, H.N.: Strain control of oxygen vacancies in epitaxial strontium cobaltite films. Adv. Funct. Mater. 26, 15641570 (2016).
21. Ding, J.F., Lebedev, O.I., Turner, S., Tian, Y.F., Hu, W.J., Seo, J.W., Panagopoulos, C., Prellier, W., Van Tendeloo, G., and Wu, T.: Interfacial spin glass state and exchange bias in manganite bilayers with competing magnetic orders. Phys. Rev. B 87, 054428 (2013).
22. Hishida, T., Ohbayashi, K., and Saitoh, T.: Hidden relationship between the electrical conductivity and the Mn 2p core-level photoemission spectra in La1–xSrxMnO3 . J. Appl. Phys. 113, 043710 (2013).
23. Peng, J.J., Song, C., Cui, B., Li, F., Mao, H.J., Wang, Y.Y., Wang, G.Y., and Pan, F.: Exchange bias in a single LaMnO3 film induced by vertical electronic phase separation. Phys. Rev. B 89, 165129 (2014).
24. Zhao, R.Q., Jin, K.J., Xu, Z.T., Guo, H.Z., Wang, L., Ge, C., Lu, H.B., and Yang, G.Z.: The oxygen vacancy effect on the magnetic property of the LaMnO3–δ thin films. Appl. Phys. Lett. 102, 122402 (2013).
25. Hemberger, J., Krimmel, A., Kurz, T., Krug von Nidda, H.-A., Yu, V., Ivanov, Mukhin, A.A., Balbashov, A.M., and Loidl, A.: Structural, magnetic, and electrical properties of single-crystalline La1–xSrxMnO3 (0.4<x<0.85). Phys. Rev. B 66, 094410 (2002).
26. Cui, B., Song, C., Gehring, G.A., Li, F., Wang, G.Y., Chen, C., Peng, J.J., Mao, H.J., Zeng, F., and Pan, F.: Electrical manipulation of orbital occupancy and magnetic anisotropy in manganites. Adv. Funct. Mater. 25, 864 (2014).
27. Pasierb, P., Komornicki, S., and Rekas, M.: Comparison of the chemical diffusion of undoped and Nb-doped SrTiO3 . J. Phys. Chem. Solids 60, 18351844 (1999).
28. Balasubramanian, M., Melendres, C.A., and Mini, S.: X-ray absorption spectroscopy studies of the local atomic and electronic structure of iron incorporated into electrodeposited hydrous nickel oxide films. J. Phys. Chem. B 104, 43004306 (2000).
29. Abbate, M., de Groot, F.M.F., Fuggle, J.C., Fujimori, A., Strebel, O., Lopez, F., Domke, M., Kaindl, G., Sawatzky, G.A., Takano, M., Takeda, Y., Eisaki, H., and Uchida, S.: Controlled-valence properties of La1–xSrxFeO3 and La1–xSrxMnO3 studied by soft-x-ray absorption spectroscopy. Phys. Rev. B 46, 4511 (1992).
30. Chmaissem, O., Dabrowski, B., Kolesnik, S., Mais, J., Jorgensen, J.D., and Short, S.: Structural and magnetic phase diagrams of La1–xSrxMnO3 and Pr1–ySryMnO3 . Phys. Rev. B 67, 094431 (2003).
31. Torija, M.A., Sharma, M., Fitzsimmons, M.R., Varela, M., and Leighton, C., Epitaxial La0.5Sr0.5CoO3 thin films: Structure, magnetism, and transport. J. Appl. Phys. 104, 023901 (2008).
32. Biskup, N., Salafranca, J., Mehta, V., Oxley, M.P., Suzuki, Y., Pennycook, S.J., Pantelides, S.T., and Varela, M., Insulating ferromagnetic LaCoO3–δ Films: A phase induced by ordering of oxygen vacancies. Phys. Rev. Lett. 112, 087202 (2014).


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