Synthesis and properties of highly metallic orbital-ordered A-site manganites
Tóm tắt
In perovskite oxide materials, because of the insertion of multiple valence states ions (e.g., Mn in manganites) at atomic A-site (i.e., at the center of perovskite cubic cell), an enhancement of the ferromagnetic metallic state together with a strong orbital order of Mn-ions is established. Such a feature goes beyond the conventional theoretical framework for which the kinetic energy of the free charge carriers prevents the occurrence of a long-range orbital order. We do provide a complete physical characterization of these so-called A-site manganites by comparing transport and structural properties of La0.7Sr0.3MnO3 and LaMnO3 thin films with different excess Mn content and different oxygen content. A viable route to successfully grow such class of materials as a function of temperature and oxygen environment is provided. The observed multi-order phase coexistence opens unexplored perspectives toward the synthesis of new intrinsic multi-functional materials.
Tài liệu tham khảo
Adamo C, Perroni CA, Cataudella V, De Filippis G, Orgiani P, Maritato L (2009) Tuning the metal–insulator transitions of (SrMnO3) n /(LaMnO3)2n superlattices: role of interfaces. Phys Rev B 79:045125. doi:10.1103/PhysRevB.79.045125
Aruta C, Adamo C, Galdi A, Orgiani P, Bisogni V, Brookes NB, Cezar JC, Thakur P, Perroni CA, De Filippis G, Cataudella V, Schlom DG, Maritato L, Ghiringhelli G (2009) Evolution of magnetic phases and orbital occupation in (SrMnO3) n /(LaMnO3)2n superlattices. Phys Rev B 80:140405(R). doi:10.1103/PhysRevB.80.140405
Aruta C, Minola M, Galdi A, Ciancio R, Petrov AYu , Brookes NB, Ghiringhelli G, Maritato L, Orgiani P (2012) Off-stoichiometry effect on orbital order in A-site manganites probed by x-ray absorption spectroscopy. Phys Rev B 86:115132. doi:10.1103/PhysRevB.86.115132
Bibes M, Barthélémy A (2007) Oxide spintronics. IEEE Trans Electron Devices 54:1003. doi:10.1109/TED.2007.894366
Bibes M, Villegas JE, Barthélémy A (2011) Ultrathin oxide films and interfaces for electronics and spintronics. Adv Phys 60:5–84. doi:10.1080/00018732.2010.534865
Chakhalian J, Freeland JW, Habermeier H-U, Cristiani G, Khaliullin G, van Veenendaal M, Keimer B (2007) Orbital reconstruction and covalent bonding at an oxide interface. Science 318:1114–1117. doi:10.1126/science.1149338
Chakhalian J, Millis AJ, Rondinelli J (2012) Whither the oxide interface. Nat Mater 11:92–94. doi:10.1038/nmat3225
Chen XJ, Soltan S, Zhang H, Habermeier H-U (2002) Strain effect on electronic transport and ferromagnetic transition temperature in La0.9Sr0.1MnO3 thin films. Phys Rev B 65:174402. doi:10.1103/PhysRevB.65.174402
Coey JMD, Viret M, von Molnár S (1999) Mixed-valence manganites. Adv Phys 48:167–293. doi:10.1080/000187399243455
Dagotto E (2009) Playing with the geometry of oxide heterostructures. Physics 2:12. doi:10.1103/Physics.2.12
Dovgij VT, Linnik AI, Pashchenko VP, Derkachenko VN, Prokopenko VK, Turchenko VA, Davydeiko NV, Sycheva VYa, Dyakonov VP, Klimov AV, Szymczak H (2003) Anomalous hysteresis in magnetoresistive ceramic and film samples of (La0.8Sr0.2)1-x Mn1+x O3 (0 ≤ x ≤ 0.4). Low Temp Phys 29:285. doi:10.1063/1.1542468
García Muñoz JL, Fontcuberta J, Martínez B, Seffar A, Piñol S, Obradors X (1997) Magnetic frustration in mixed valence manganites. Phys Rev B 55:R668. doi:10.1103/PhysRevB.55.R668
Hwang HY, Cheong S-W, Radaelli PG, Marezio M, Batlogg B (1995) Lattice effects on the magnetoresistance in doped LaMnO3. Phys Rev Lett 75:914. doi:10.1103/PhysRevLett.75.914
Joy PA, Sankar CR, Date SK (2002) The limiting value of x in the ferromagnetic compositions La1-x MnO3. J Phys Condens Matter 14:L663. doi:10.1088/0953-8984/14/39/104
Mannhart J, Schlom DG (2010) Oxide interfaces—an opportunity for electronics. Science 327:1607–1611. doi:10.1126/science.1181862
Mikhaylov VI, Zubov EE, Pashchenko AV, Varyukhin VN, Shtaba VA, Dyakonov VP, Szewczyk A, Abaloshev A, Piotrowski K, Lewandowski SJ, Szymczak H, Dyakonov K (2006) Comparison of pressure, magnetic-field, and excess manganese effects on transport properties of film and bulk ceramic La–Ca manganites. Low Temp Phys 32:139. doi:10.1063/1.2171514
Norton DP (2004) Synthesis and properties of epitaxial electronic oxide thin-film materials. Mater Sci Eng 43:139–2477. doi:10.1016/j.mser.2003.12.002
Ohtomo A, Hwang HY (2004) A high-mobility electron gas at the LaAlO3/SrTiO3 heterointerface. Nature 427:423–426. doi:10.1038/nature02308.
Opel M (2012) Spintronic oxides grown by laser-MBE. J Phys D Appl Phys 45:033001. doi:10.1088/0022-3727/45/3/033001
Orgiani P, Petrov AYu, Adamo C, Aruta C, Barone C, De Luca GM, Galdi A, Polichetti M, Zola D, Maritato L (2006) In-plane anisotropy in the magnetic and transport properties of manganite ultrathin films. Phys Rev B 74:134419. doi:10.1103/PhysRevB.74.134419
Orgiani P, Adamo C, Barone C, Galdi A, Petrov AYu, Schlom DG, Maritato L (2007a) Influence of a single disorder parameter on the conduction mechanisms in manganite thin films. Phys Rev B 76:012404. doi:10.1103/PhysRevB.76.012404
Orgiani P, Guarino A, Aruta C, Adamo C, Galdi A, Petrov AYu, Savo R, Maritato L (2007b) Magnetotransport properties of epitaxial strain-less La0.7Ba0.3MnO3 thin films. J Appl Phys 101:033904. doi:10.1063/1.2430770
Orgiani P, Aruta C, Ciancio R, Galdi A, Maritato L (2009) Enhanced transport properties in La x MnO3-δ thin films epitaxially grown on SrTiO3 substrates: the profound impact of the oxygen content. Appl Phys Lett 95:013510. doi:10.1063/1.3168649
Orgiani P, Galdi A, Aruta C, Cataudella V, De Filippis G, Perroni CA, Marigliano Ramaglia V, Ciancio R, Brookes NB, Moretti Sala M, Ghiringhelli G, Maritato L (2010) Multiple double-exchange mechanism by Mn2+ doping in manganite compounds. Phys Rev B 82:205122. doi:10.1103/PhysRevB.82.205122
Orgiani P, Petrov AYu, Ciancio R, Galdi A, Maritato L, Davidson BA (2012) Evidence of direct correlation between out-of-plane lattice parameter and metal–insulator transition temperature in oxygen-depleted manganite thin films. Appl Phys Lett 100:042404. doi:10.1063/1.3676268
Peña MA, Fierro JLG (2001) Chemical structures and performance of perovskite oxides. Chem Rev 101:1981–2017. doi:10.1002/chin.200139260
Ramesh R (2009) Materials science: emerging routes to multiferroics. Nature 461:1218–1219. doi:10.1038/4611218a
Salamon MB, Jaime M (2001) The physics of manganites: structure and transport. Rev Mod Phys 73:583-682 doi:10.1103/RevModPhys.73.583
Shannon RD (1976) Revised effective ionic radii and systematic studies of interatomic distances in halides and chalcogenides. Acta Cryst A32:751–767. doi:10.1107/S0567739476001551
Spaldin NA, Fiebig M (2005) The renaissance of magnetoelectric multiferroics. Science 309:391–392. doi:10.1126/science.1113357
Tokura Y (2006) Multiferroics as quantum electromagnets. Science 312:1481. doi:10.1126/science.1125227
Tokura Y, Tomioka Y (1999) Colossal magnetoresistive manganites. J Magn Magn Mater 200:1–23. doi:10.1016/S0304-8853(99)00352-2
Urushibara A, Moritomo Y, Arima T, Asamitsu A, Kido G, Tokura Y (1995) Insulator-metal transition and giant magnetoresistance in La1-x Sr x MnO3. Phys Rev B 51:14103. doi:10.1103/PhysRevB.51.14103
Van den Brink J, Khaliullin G, Khomkii D (2004), Orbital effects in manganites in Colossal magnetoresistive manganites, Chapter 6. Edited by Kluwer Academic Publishers, Dordrecht
Van den Brink J, Khomskii D (2008) Multiferroicity due to charge ordering. J Phys Condens Matter 20:434217. doi:10.1088/0953-8984/20/43/434217
Vertruyen B, Cloots R, Ausloos M, Fagnard J-F, Vanderbemden PH (2007) Electrical transport and percolation in magnetoresistive manganite/insulating oxide composites: case of La0.7Ca0.3MnO3/Mn3O4. Phys Rev B 75:165112. doi:10.1103/PhysRevB.75.165112
Wang KF, Liu JM, Ren ZF (2009) Multiferroicity: the coupling between magnetic and polarization orders. Adv Phys 58:321. doi:10.1080/00018730902920554
Wołcyrz M, Horyn R, Bouréeb F, Bukowska E (2003) Structural defects in LaMnO3 phase studied by neutron diffraction. J Alloy Compd 353:170–174. doi:10.1016/S0925-8388(02)01313-0
Zhang J, Tanaka H, Kanki T, Choi J-H, Kawai T (2001) Strain effect and the phase diagram of La1-x Ba x MnO3 thin films. Phys Rev B 64:184404. doi:10.1103/PhysRevB.64.184404
Zheng RK, Wang Y, Habermeier H-U, Chan HLW, Li XM, Luo HS (2012) Interface strain coupling and its impact on the transport and magnetic properties of LaMnO3 thin films grown on ferroelectrically active substrates. J Alloy Compd 519:77–81. doi:10.1016/j.jallcom.2011.12.099
Zubko P, Gariglio S, Gabay M, Ghosez P, Triscone J-M (2011) Interface physics in complex oxide heterostructures. Annu Rev Condens Matter Phys 2:141. doi:10.1146/annurev-conmatphys-062910-140445