Engineered Mott ground state in a LaTiO(3+δ)/LaNiO3 heterostructure

Nature Communications
Yanwei CaoJ Chakhalian

Abstract

In pursuit of creating cuprate-like electronic and orbital structures, artificial heterostructures based on LaNiO3 have inspired a wealth of exciting experimental and theoretical results. However, to date there is a very limited experimental understanding of the electronic and orbital states emerging from interfacial charge transfer and their connections to the modified band structure at the interface. Towards this goal, we have synthesized a prototypical superlattice composed of a correlated metal LaNiO3 and a doped Mott insulator LaTiO(3+δ), and investigated its electronic structure by resonant X-ray absorption spectroscopy combined with X-ray photoemission spectroscopy, electrical transport and theory calculations. The heterostructure exhibits interfacial charge transfer from Ti to Ni sites, giving rise to an insulating ground state with orbital polarization and e(g) orbital band splitting. Our findings demonstrate how the control over charge at the interface can be effectively used to create exotic electronic, orbital and spin states.

References

Sep 15, 1989·Physical Review. B, Condensed Matter· de Groot FMH Petersen
Jul 22, 1985·Physical Review Letters·J ZaanenJ W Allen
Apr 25, 2000·Science·Y Tokura, N Nagaosa
Feb 21, 2006·Physical Review Letters·Takashi Oka, Naoto Nagaosa
Feb 1, 2008·Physical Review Letters·Jirí Chaloupka, Giniyat Khaliullin
Mar 27, 2010·Science·J Mannhart, D G Schlom
Feb 8, 2011·Nature Materials·Eva BenckiserBernhard Keimer
Aug 26, 2009·Journal of Physics. Condensed Matter : an Institute of Physics Journal·O Bunău, Y Joly
Jul 21, 2011·Physical Review Letters·R ScherwitzlJ-M Triscone
Oct 27, 2011·Physical Review Letters·J ChakhalianJ W Freeland
Dec 21, 2011·Physical Review Letters·M J HanA J Millis
Jan 25, 2012·Nature Materials·J ChakhalianJ Rondinelli
Jan 25, 2012·Nature Materials·H Y HwangY Tokura
May 21, 2013·Physical Review Letters·Hanghui ChenSohrab Ismail-Beigi
Oct 1, 2013·Physical Review Letters·Hanghui ChenChris A Marianetti
Nov 12, 2013·Journal of Physics. Condensed Matter : an Institute of Physics Journal·R J O MossanekL Soriano
Feb 25, 2014·Nature Communications·Feng LinHuolin L Xin
Apr 8, 2014·Nature Nanotechnology·P D C KingK M Shen
Jan 31, 2015·Physical Review Letters·Ankit S DisaCharles H Ahn
Feb 28, 2015·Physical Review Letters·K A Al-HassaniehE Dagotto

❮ Previous
Next ❯

Citations

Jun 22, 2016·Scientific Reports·D MeyersJ Chakhalian
Mar 8, 2018·Advanced Materials·Er-Jia GuoHo Nyung Lee
Apr 25, 2017·Journal of Physics. Condensed Matter : an Institute of Physics Journal·Hanghui Chen, Andrew Millis
Dec 22, 2017·Reports on Progress in Physics·S CatalanoJ Kreisel
Jun 21, 2018·Physical Chemistry Chemical Physics : PCCP·Urmimala DeyA Taraphder
Mar 14, 2019·Journal of Physics. Condensed Matter : an Institute of Physics Journal·Dapeng CuiDi Wu
Sep 19, 2019·Proceedings of the National Academy of Sciences of the United States of America·Xiaoran LiuJak Chakhalian
Oct 3, 2020·Advanced Materials·Le WangScott A Chambers
May 8, 2018·Advanced Materials·Philipp ScheidererRalph Claessen
Apr 13, 2019·Physical Review Letters·Adolfo AvellaPeter Horsch
Oct 24, 2017·ACS Applied Materials & Interfaces·Guowei ZhouXiaohong Xu
May 1, 2018·ACS Applied Materials & Interfaces·Justin G ConnellNenad M Markovic
Nov 3, 2021·Nature Communications·Sandhya SusarlaJavier Junquera

❮ Previous
Next ❯

Methods Mentioned

BETA
X-ray
electron diffraction

Software Mentioned

XLD

Related Concepts

Trending Feeds

COVID-19

Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.

Blastomycosis

Blastomycosis fungal infections spread through inhaling Blastomyces dermatitidis spores. Discover the latest research on blastomycosis fungal infections here.

Nuclear Pore Complex in ALS/FTD

Alterations in nucleocytoplasmic transport, controlled by the nuclear pore complex, may be involved in the pathomechanism underlying multiple neurodegenerative diseases including Amyotrophic Lateral Sclerosis and Frontotemporal Dementia. Here is the latest research on the nuclear pore complex in ALS and FTD.

Applications of Molecular Barcoding

The concept of molecular barcoding is that each original DNA or RNA molecule is attached to a unique sequence barcode. Sequence reads having different barcodes represent different original molecules, while sequence reads having the same barcode are results of PCR duplication from one original molecule. Discover the latest research on molecular barcoding here.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.

Evolution of Pluripotency

Pluripotency refers to the ability of a cell to develop into three primary germ cell layers of the embryo. This feed focuses on the mechanisms that underlie the evolution of pluripotency. Here is the latest research.

Position Effect Variegation

Position Effect Variagation occurs when a gene is inactivated due to its positioning near heterochromatic regions within a chromosome. Discover the latest research on Position Effect Variagation here.

STING Receptor Agonists

Stimulator of IFN genes (STING) are a group of transmembrane proteins that are involved in the induction of type I interferon that is important in the innate immune response. The stimulation of STING has been an active area of research in the treatment of cancer and infectious diseases. Here is the latest research on STING receptor agonists.

Microbicide

Microbicides are products that can be applied to vaginal or rectal mucosal surfaces with the goal of preventing, or at least significantly reducing, the transmission of sexually transmitted infections. Here is the latest research on microbicides.