Phase engineering of rare earth nickelates by digital synthesis
- Indian Inst. of Science, Bengaluru (India). Dept. of Physics
- Brookhaven National Lab. (BNL), Upton, NY (United States). Dept. of Condensed Matter Physics and Materials Science
- Rutgers Univ., Piscataway, NJ (United States). Dept. of Physics and Astronomy
- Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States). Advanced Light Source (ALS)
- Argonne National Lab. (ANL), Argonne, IL (United States). Advanced Photon Source (APS)
- Argonne National Lab. (ANL), Argonne, IL (United States). Advanced Photon Source (APS); Dublin City Univ., Dublin (Ireland). School of Physical Sciences
Here, we report on the electronic and magnetic properties of a series of [m EuNiO3/p LaNiO3] superlattices (thickness m and/or p = 1 unit cell) epitaxially grown on single crystalline NdGaO3 substrates. The structural symmetry of these films has been investigated by the combination of in-situ reflection high energy electron diffraction and X-ray diffraction measurements. The metal-insulator transition and the magnetic transition temperatures of the short-period superlattices with m ≥ p are modified from the corresponding bulk Eu1–xLaxNiO3 (x=$$\frac{p}{m+p}$$ ) composition. In contrast to the corresponding bulk doped compound with x = 0.67, the [1 EuNiO3/2 LaNiO3] film remains metallic down to at least 2 K without signs of electronic or magnetic transitions. These findings demonstrate the power of the digital synthesis approach to realize electronic and magnetic phases of perovskite nickelates, unattainable in bulk.
- Research Organization:
- Argonne National Laboratory (ANL), Argonne, IL (United States)
- Sponsoring Organization:
- Gordon and Betty Moore Foundation (GBMF); USDOE Office of Science (SC)
- Grant/Contract Number:
- AC02-06CH11357; GBMF4534; AC02-05CH11231; 1047478; SC0012375
- OSTI ID:
- 1493890
- Alternate ID(s):
- OSTI ID: 1465875
- Journal Information:
- Applied Physics Letters, Vol. 113, Issue 8; ISSN 0003-6951
- Publisher:
- American Institute of Physics (AIP)Copyright Statement
- Country of Publication:
- United States
- Language:
- English
Web of Science
Conductivity noise across temperature-driven transitions of rare-earth nickelate heterostructures
|
journal | September 2019 |
Conductivity noise across temperature driven transitions of rare-earth nickelate heterostructures | text | January 2019 |
Similar Records
Emergent behavior of LaNiO3 in short-periodic nickelate superlattices
Direct experimental evidence of tunable charge transfer at the