Skip to main content
U.S. Department of Energy
Office of Scientific and Technical Information

Electron doping of NdNiO3 thin films using dual chamber CaH2 annealing

Journal Article · · Journal of Solid State Chemistry
 [1];  [1];  [2];  [2];  [3];  [1]
  1. Purdue Univ., West Lafayette, IN (United States)
  2. Argonne National Lab. (ANL), Argonne, IL (United States). Advanced Photon Source (APS)
  3. Argonne National Lab. (ANL), Argonne, IL (United States). Materials Science Division

Hydrogen donor doping has been exploited as a strategy to manipulate the electronic structure and electrical properties of functional oxide systems. Especially, the development of synthetic methods to achieve electron doping of perovskite rare-earth nickelate thin films utilizing interstitial hydrogen is highly desirable considering the rich electronic phase diagram hosting several functional properties. Here, in this work, we present the hydrogenation of NdNiO3 (NNO) thin films using CaH2 annealing and the resulting giant modulation of electrical resistivity in hydrogenated NNO (H–NNO) thin films. Magnetron sputtering was employed to deposit epitaxial ~60 nm-thin NNO films on single crystal LaAlO3 (LAO) substrates. The formation of the pristine perovskite NNO phase was realized after annealing the films at 500 °C for 24 h. CaH2 annealing of NNO thin films for time durations ranging from 1 to 6 h was performed in a vacuumed ampule with two interconnected chambers at 280 °C. The two-chamber design enables a simple and clean approach for hydrogen doping without physical contact between the powder and sample of interest. X-ray diffraction and Raman spectroscopy revealed the formation of NNO in pristine samples, and the subsequent hydrogen incorporation upon CaH2 annealing without forming any impurity phases. The conversion of the oxidation state of Ni towards +2 upon CaH2 annealing was probed using X-ray photoelectron spectroscopy and X-ray absorption spectroscopy. Consequently, a substantial increase in the room-temperature resistivity was observed upon CaH2 annealing indicating the formation of a strongly correlated electronic configuration of Ni in H–NNO due to electron doping. Overall, the findings of this study highlight the versatility of CaH2 annealing as an electron doping method to tune the electrical properties of correlated oxides at low temperatures.

Research Organization:
Argonne National Laboratory (ANL)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES). Scientific User Facilities Division; National Science Foundation (NSF); US Air Force Office of Scientific Research (AFOSR)
Grant/Contract Number:
AC02-06CH11357
OSTI ID:
1909347
Alternate ID(s):
OSTI ID: 1883625
Journal Information:
Journal of Solid State Chemistry, Journal Name: Journal of Solid State Chemistry Vol. 315; ISSN 0022-4596
Publisher:
ElsevierCopyright Statement
Country of Publication:
United States
Language:
English

References (44)

Electron‐Doping Mottronics in Strongly Correlated Perovskite journal December 2019
Interpretation of Ni2p XPS spectra of Ni conductors and Ni insulators journal May 2000
The formation and characterisation of Ni3+ — an X-ray photoelectron spectroscopic investigation of potassium-doped Ni(110)–O journal October 1999
Raman study of metal–insulator transition in NdNiO3 thin films journal March 2000
Investigation of epitaxial LaNiO3−x thin films by high-energy XPS journal October 2006
Gas phase contributions to topochemical hydride reduction reactions journal November 2013
Comparison of reduction agents in the synthesis of infinite-layer LaNiO2 films journal November 2014
New interpretations of XPS spectra of nickel metal and oxides journal May 2006
Strain-Assisted Topochemical Synthesis of La-Doped SrVO2H Films journal June 2021
Destabilized Calcium Hydride as a Promising High-Temperature Thermal Battery journal July 2020
A Superconducting Praseodymium Nickelate with Infinite Layer Structure journal June 2020
Electrochromic Properties of Perovskite NdNiO3 Thin Films for Smart Windows journal March 2021
Electron Doping-Induced Metal–Insulator Transition in LaNiO3 and Memory Devices journal April 2022
Effects of Off-Stoichiometry in the Epitaxial NdNiO3 Film on the Suppression of Its Metal-Insulator-Transition Properties journal December 2019
Oxygen Vacancy Induced Room-Temperature Metal–Insulator Transition in Nickelate Films and Its Potential Application in Photovoltaics journal April 2016
Reversible Changes in Resistance of Perovskite Nickelate NdNiO 3 Thin Films Induced by Fluorine Substitution journal March 2017
Electron Doping BaZrO3 via Topochemical Reduction journal May 2019
Epitaxial Thin Films of ATiO 3– x H x (A = Ba, Sr, Ca) with Metallic Conductivity journal May 2012
Cool conditions for mobile ions journal December 2007
Colossal resistance switching and band gap modulation in a perovskite nickelate by electron doping journal September 2014
Superconductivity in an infinite-layer nickelate journal August 2019
Substrate-induced anion rearrangement in epitaxial thin films of LaSrCoO 4−x H x journal January 2014
Formation of defect-fluorite structured NdNiO x H y epitaxial thin films via a soft chemical route from NdNiO 3 precursors journal January 2016
Strain-mediated metal-insulator transition in epitaxial ultrathin films of NdNiO3 journal June 2010
Epitaxy, strain, and composition effects on metal-insulator transition characteristics of SmNiO 3 thin films journal June 2011
Topotactic synthesis of strontium cobalt oxyhydride thin film with perovskite structure journal October 2015
Correlated memory resistor in epitaxial NdNiO 3 heterostructures with asymmetrical proton concentration journal March 2016
Epitaxial growth and electronic structure of oxyhydride SrVO2H thin films journal August 2016
Strain-enhanced topotactic hydrogen substitution for oxygen in SrTiO 3 epitaxial thin film journal December 2018
Aspects of the synthesis of thin film superconducting infinite-layer nickelates journal April 2020
Strongly correlated perovskite lithium ion shuttles journal August 2018
Carrier localization in perovskite nickelates from oxygen vacancies journal October 2019
Neuromorphic learning with Mott insulator NiO journal September 2021
Rare-earth nickelates R NiO 3 : thin films and heterostructures journal February 2018
Bulk NdNi O 2 is thermodynamically unstable with respect to decomposition while hydrogenation reduces the instability and transforms it from metal to insulator journal January 2022
Systematic study of insulator-metal transitions in perovskites RNiO3 (R=Pr,Nd,Sm,Eu) due to closing of charge-transfer gap journal April 1992
R NiO 3 perovskites ( R =Pr,Nd): Nickel valence and the metal-insulator transition investigated by x-ray-absorption spectroscopy journal December 1992
Metal-insulator transitions in NdNiO 3 thin films journal September 2000
Sign reversal of magnetoresistance in a perovskite nickelate by electron doping journal December 2016
Topotactic Hydrogen in Nickelate Superconductors and Akin Infinite-Layer Oxides A B O 2 journal April 2020
Sudden Collapse of Magnetic Order in Oxygen-Deficient Nickelate Films journal May 2021
Reconfigurable perovskite nickelate electronics for artificial intelligence journal February 2022
Physics of Ultrathin Films and Heterostructures of Rare-Earth Nickelates journal July 2016
Lattice distortion effects on electrical switching in epitaxial thin film NdNiO 3 journal December 1995

Similar Records

Electrochromic Properties of Perovskite NdNiO3 Thin Films for Smart Windows
Journal Article · Wed Mar 24 00:00:00 EDT 2021 · ACS Applied Electronic Materials · OSTI ID:1839085

Strain controlled metal-insulator transition in epitaxial NdNiO{sub 3} thin films
Journal Article · Fri Dec 27 23:00:00 EST 2013 · Journal of Applied Physics · OSTI ID:22267764