Graded orbital occupation near interfaces in a La2NiO4 – La2CuO4 superlattice

Smadici, S.; Lee, J. C. T.; Morales, J.; Logvenov, G.; Pelleg, O.; Bozovic, I.; Zhu, Y.; Abbamonte, P.

doi:10.1103/physrevb.84.155411

Graded orbital occupation near interfaces in a La₂NiO₄ – La₂CuO₄ superlattice

Journal Article · Tue Oct 11 00:00:00 EDT 2011 · Physical Review. B, Condensed Matter and Materials Physics

DOI:https://doi.org/10.1103/physrevb.84.155411· OSTI ID:1958852

Smadici, S. ^[1]; Lee, J. C. T. ^[2]; Morales, J. ^[2]; Logvenov, G. ^[3]; Pelleg, O. ^[4]; Bozovic, I. ^[4]; Zhu, Y. ^[4]; Abbamonte, P. ^[2]

Univ. of Illinois at Urbana-Champaign, IL (United States); University of Illinois
Univ. of Illinois at Urbana-Champaign, IL (United States)
Brookhaven National Lab. (BNL), Upton, NY (United States); Max Planck Institute of Solid State Research, Stuttgart (Germany)
Brookhaven National Lab. (BNL), Upton, NY (United States)

X-ray absorption spectroscopy and resonant soft x-ray reflectivity show a nonuniform distribution of oxygen holes in a La₂NiO₄–La₂CuO₄ (LNO-LCO) superlattice, with excess holes concentrated in the LNO layers. Weak ferromagnetism with T_c=160 K suggests a coordinated tilting of NiO₆ octahedra, similar to that of bulk LNO. Ni d_3z²–r² orbitals within the LNO layers have a spatially variable occupation. This variation of the Ni valence near LNO-LCO interfaces is observed with resonant soft x-ray reflectivity at the Ni and Cu L edges, at a reflection suppressed by the symmetry of the structure, and is possible through graded doping with holes, due to oxygen interstitials taken up preferentially by inner LNO layers. Further, since the density of oxygen atoms in the structure can be smoothly varied with standard procedures, this orbital occupation, robust up to at least 280 K, is tunable.

View Accepted Manuscript (DOE)

Research Organization:: Univ. of Illinois at Urbana-Champaign, IL (United States)

Sponsoring Organization:: USDOE Office of Science (SC), Basic Energy Sciences (BES)

Grant/Contract Number:: AC02-06CH11357; AC02-98CH10886; FG02-06ER46285; FG02-07ER46453; FG02-07ER46471

OSTI ID:: 1958852

Alternate ID(s):: OSTI ID: 1029012
OSTI ID: 1045888
OSTI ID: 1069895

Journal Information:: Physical Review. B, Condensed Matter and Materials Physics, Journal Name: Physical Review. B, Condensed Matter and Materials Physics Journal Issue: 15 Vol. 84; ISSN 1098-0121

Publisher:: American Physical Society (APS)Copyright Statement

Country of Publication:: United States

Language:: English

References (35)

Transport and Magnetic Properties of La2NiO4+δ(0 ≤ δ ≤ 0.25) Demourgues, A.; Dordor, P.; Doumerc, J. -P. Journal of Solid State Chemistry, Vol. 124, Issue 2 https://doi.org/10.1006/jssc.1996.0226	journal	July 1996
Isotropic O 1s prepeak as evidence for polarons in La2NiO4 + δ Kuiper, P.; Rice, D. E.; Buttrey, D. J. Physica B: Condensed Matter, Vol. 208-209 https://doi.org/10.1016/0921-4526(94)01030-5	journal	March 1995
Magnetic structure and weak ferromagnetism of La2NiO4+δ Yamada, K.; Omata, T.; Nakajima, K. Physica C: Superconductivity, Vol. 191, Issue 1-2 https://doi.org/10.1016/0921-4534(92)90625-M	journal	February 1992
Artificial charge-modulationin atomic-scale perovskite titanate superlattices Ohtomo, A.; Muller, D. A.; Grazul, J. L. Nature, Vol. 419, Issue 6905 https://doi.org/10.1038/nature00977	journal	September 2002
Crystallization of charge holes in the spin ladder of Sr14Cu24O41 Abbamonte, P.; Blumberg, G.; Rusydi, A. Nature, Vol. 431, Issue 7012 https://doi.org/10.1038/nature02925	journal	October 2004
Full bulk spin polarization and intrinsic tunnel barriers at the surface of layered manganites Freeland, J. W.; Gray, K. E.; Ozyuzer, L. Nature Materials, Vol. 4, Issue 1 https://doi.org/10.1038/nmat1280	journal	December 2004
Orbital reflectometry of oxide heterostructures Benckiser, Eva; Haverkort, Maurits W.; Brück, Sebastian Nature Materials, Vol. 10, Issue 3 https://doi.org/10.1038/nmat2958	journal	February 2011
Spatially modulated 'Mottness' in La2-xBaxCuO4 Abbamonte, P.; Rusydi, A.; Smadici, S. Nature Physics, Vol. 1, Issue 3 https://doi.org/10.1038/nphys178	journal	December 2005
Magnetism at the interface between ferromagnetic and superconducting oxides Chakhalian, J.; Freeland, J. W.; Srajer, G. Nature Physics, Vol. 2, Issue 4 https://doi.org/10.1038/nphys272	journal	April 2006
Structure of the interstitial oxygen defect in La 2 NiO 4 + δ Jorgensen, J. D.; Dabrowski, B.; Pei, Shiyou Physical Review B, Vol. 40, Issue 4 https://doi.org/10.1103/PhysRevB.40.2187	journal	August 1989
2 p x-ray absorption of 3 d transition-metal compounds: An atomic multiplet description including the crystal field de Groot, F. M. F.; Fuggle, J. C.; Thole, B. T. Physical Review B, Vol. 42, Issue 9 https://doi.org/10.1103/PhysRevB.42.5459	journal	September 1990
Dzyaloshinskii-Moriya interaction in the cuprates Coffey, D.; Rice, T. M.; Zhang, F. C. Physical Review B, Vol. 44, Issue 18 https://doi.org/10.1103/PhysRevB.44.10112	journal	November 1991
Unoccupied density of states of La 2 − x Sr x NiO 4 + δ studied by polarization-dependent x-ray-absorption spectroscopy and bremsstrahlung isochromat spectroscopy Kuiper, P.; van Elp, J.; Sawatzky, G. A. Physical Review B, Vol. 44, Issue 9 https://doi.org/10.1103/PhysRevB.44.4570	journal	September 1991
Determination of absorption coefficients for concentrated samples by fluorescence detection Eisebitt, S.; Böske, T.; Rubensson, J. -E. Physical Review B, Vol. 47, Issue 21 https://doi.org/10.1103/PhysRevB.47.14103	journal	June 1993
Oxygen intercalation, stage ordering, and phase separation in La 2 NiO 4 + δ with 0.05≲δ≲0.11 Tranquada, J. M.; Kong, Y.; Lorenzo, J. E. Physical Review B, Vol. 50, Issue 9 https://doi.org/10.1103/PhysRevB.50.6340	journal	September 1994
O 1 s near-edge x-ray absorption of La 2 − x Sr x NiO 4 + δ : Holes, polarons, and excitons Pellegrin, E.; Zaanen, J.; Lin, H. -J. Physical Review B, Vol. 53, Issue 16 https://doi.org/10.1103/PhysRevB.53.10667	journal	April 1996
Polarization-dependent nickel 2 p x-ray-absorption spectra of La 2 NiO 4 + δ Kuiper, Pieter; van Elp, J.; Rice, D. E. Physical Review B, Vol. 57, Issue 3 https://doi.org/10.1103/PhysRevB.57.1552	journal	January 1998
Static magnetic correlations near the insulating-superconducting phase boundary in La2-xSrxCuO4 Fujita, M.; Yamada, K.; Hiraka, H. Physical Review B, Vol. 65, Issue 6 https://doi.org/10.1103/PhysRevB.65.064505	journal	January 2002
Lattice-polarization effects on electron-gas charge densities in ionic superlattices Hamann, D. R.; Muller, D. A.; Hwang, H. Y. Physical Review B, Vol. 73, Issue 19 https://doi.org/10.1103/PhysRevB.73.195403	journal	May 2006
Charge modulations versus strain waves in resonant x-ray scattering Abbamonte, P. Physical Review B, Vol. 74, Issue 19 https://doi.org/10.1103/PhysRevB.74.195113	journal	November 2006
Electronic structure of charge and spin stripe order in La 2 − x Sr x Ni O 4 ( x = 1 3 , 1 2 ) Yamamoto, Susumu; Fujiwara, Takeo; Hatsugai, Yasuhiro Physical Review B, Vol. 76, Issue 16 https://doi.org/10.1103/PhysRevB.76.165114	journal	October 2007
Effects of strain on orbital ordering and magnetism at perovskite oxide interfaces: LaMnO 3 / SrMnO 3 Nanda, B. R. K.; Satpathy, Sashi Physical Review B, Vol. 78, Issue 5 https://doi.org/10.1103/PhysRevB.78.054427	journal	August 2008
Orbital Order and Possible Superconductivity in LaNiO 3 / LaMO 3 Superlattices Chaloupka, Jiří; Khaliullin, Giniyat Physical Review Letters, Vol. 100, Issue 1 https://doi.org/10.1103/PhysRevLett.100.016404	journal	January 2008
Superconducting Transition at 38 K in Insulating-Overdoped La 2 Cu O 4 − La 1.64 Sr 0.36 Cu O 4 Superlattices: Evidence for Interface Electronic Redistribution from Resonant Soft X-Ray Scattering Smadici, S.; Lee, J. C. T.; Wang, S. Physical Review Letters, Vol. 102, Issue 10 https://doi.org/10.1103/PhysRevLett.102.107004	journal	March 2009
Turning a Nickelate Fermi Surface into a Cupratelike One through Heterostructuring Hansmann, P.; Yang, Xiaoping; Toschi, A. Physical Review Letters, Vol. 103, Issue 1 https://doi.org/10.1103/PhysRevLett.103.016401	journal	June 2009
Band gaps and electronic structure of transition-metal compounds Zaanen, J.; Sawatzky, G. A.; Allen, J. W. Physical Review Letters, Vol. 55, Issue 4 https://doi.org/10.1103/PhysRevLett.55.418	journal	July 1985
Two-dimensional antiferromagnetic quantum spin-fluid state in La 2 CuO 4 Shirane, G.; Endoh, Y.; Birgeneau, R. J. Physical Review Letters, Vol. 59, Issue 14 https://doi.org/10.1103/PhysRevLett.59.1613	journal	October 1987
Electronic states in La 2 − x Sr x CuO 4 + δ probed by soft-x-ray absorption Chen, C. T.; Sette, F.; Ma, Y. Physical Review Letters, Vol. 66, Issue 1 https://doi.org/10.1103/PhysRevLett.66.104	journal	January 1991
Out-of-plane orbital characters of intrinsic and doped holes in La 2 − x Sr x CuO 4 Chen, C. T.; Tjeng, L. H.; Kwo, J. Physical Review Letters, Vol. 68, Issue 16 https://doi.org/10.1103/PhysRevLett.68.2543	journal	April 1992
Angle-Dependent Ni 2 + X-Ray Magnetic Linear Dichroism: Interfacial Coupling Revisited Arenholz, Elke; van der Laan, Gerrit; Chopdekar, Rajesh V. Physical Review Letters, Vol. 98, Issue 19 https://doi.org/10.1103/PhysRevLett.98.197201	journal	May 2007
High Mobility in LaAlO3/SrTiO3 Heterostructures: Origin, Dimensionality, and Perspectives Herranz, G.; Basletić, M.; Bibes, M. Physical Review Letters, Vol. 98, Issue 21, Article No. 216803 https://doi.org/10.1103/PhysRevLett.98.216803	journal	May 2007
Electronic Reconstruction at SrMnO 3 − LaMnO 3 Superlattice Interfaces Smadici, Şerban; Abbamonte, Peter; Bhattacharya, Anand Physical Review Letters, Vol. 99, Issue 19 https://doi.org/10.1103/PhysRevLett.99.196404	journal	November 2007
A Structural Probe of the Doped Holes in Cuprate Superconductors Abbamonte, P. Science, Vol. 297, Issue 5581 https://doi.org/10.1126/science.1070903	journal	July 2002
Orbital Reconstruction and Covalent Bonding at an Oxide Interface Chakhalian, J.; Freeland, J. W.; Habermeier, H. -U. Science, Vol. 318, Issue 5853 https://doi.org/10.1126/science.1149338	journal	November 2007
Dimensionality Control of Electronic Phase Transitions in Nickel-Oxide Superlattices Boris, A. V.; Matiks, Y.; Benckiser, E. Science, Vol. 332, Issue 6032 https://doi.org/10.1126/science.1202647	journal	May 2011

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