Electronic Reconstruction at SrMnO3–LaMnO3 Superlattice Interfaces

Smadici, Şerban; Abbamonte, Peter; Bhattacharya, Anand; Zhai, Xiaofang; Jiang, Bin; Rusydi, Andrivo; Eckstein, James N.; Bader, Samuel D.; Zuo, Jian-Min

doi:10.1103/physrevlett.99.196404

Title: Electronic Reconstruction at SrMnO 3 – LaMnO 3 Superlattice Interfaces

Journal Article · Fri Nov 09 00:00:00 EST 2007 · Physical Review Letters

DOI:https://doi.org/10.1103/physrevlett.99.196404· OSTI ID:1958861

Smadici, Şerban ^[1]; Abbamonte, Peter ^[1]; Bhattacharya, Anand ^[2]; Zhai, Xiaofang ^[1]; Jiang, Bin ^[1]; Rusydi, Andrivo ^[3]; Eckstein, James N. ^[1]; Bader, Samuel D. ^[2]; Zuo, Jian-Min ^[1]

Univ. of Illinois, Urbana, IL (United States)
Argonne National Lab. (ANL), Argonne, IL (United States)
Univ. of Hamburg (Germany)

We use resonant soft–x-ray scattering (RSXS) to study the electronic reconstruction at the interface between the Mott insulator LaMnO₃ and the band insulator SrMnO₃. Superlattices of these two insulators were shown previously to have both ferromagnetism and metallic tendencies [Koida et al., Phys. Rev. B 66, 144418 (2002)]. By studying a judiciously chosen superlattice reflection, we show that the interface density of states exhibits a pronounced peak at the Fermi level, similar to that predicted in related titanate superlattices by Okamoto et al. [Phys. Rev. B 70, 241104(R) (2004)]. The intensity of this peak correlates with the conductivity and magnetization, suggesting it is the driver of metallic behavior. Here, our study demonstrates a general strategy for using RSXS to probe the electronic properties of heterostructure interfaces.

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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:: FG02-06ER46285; AC02-06CH11357; AC02-98CH10886

OSTI ID:: 1958861

Journal Information:: Physical Review Letters, Vol. 99, Issue 19; ISSN 0031-9007

Publisher:: American Physical Society (APS)Copyright Statement

Country of Publication:: United States

Language:: English

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Cited by: 135 works

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References (21)

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