Bulletin of the American Physical Society
APS March Meeting 2021
Volume 66, Number 1
Monday–Friday, March 15–19, 2021; Virtual; Time Zone: Central Daylight Time, USA
Session X43: Electronic, Magnetic, and Structural Properties of Nickelates
8:00 AM–11:00 AM,
Friday, March 19, 2021
Sponsoring
Unit:
DCMP
Chair: Trinanjan Datta, Augusta University
Abstract: X43.00003 : Electronic and structural changes in SmNiO3 perovskite under doping with hydrogen*
8:24 AM–8:36 AM
Live
Presenter:
Ivan Zaluzhnyy
(University of California, San Diego)
Authors:
Ivan Zaluzhnyy
(University of California, San Diego)
Peter Oliver Sprau
(University of California, San Diego)
Richard Tran
(University of California, San Diego)
Qi Wang
(School of Materials Engineering, Purdue University)
Hai-Tian Zhang
(School of Materials Engineering, Purdue University)
Zhen Zhang
(School of Materials Engineering, Purdue University)
Nelson Hua
(University of California, San Diego)
Boyan Stoychev
(University of California, San Diego)
Mathew J Cherukara
(Center for nanoscale materials, Argonne National Laboratory)
Martin Holt
(Center for nanoscale materials, Argonne National Laboratory)
Evgeny Nazarertski
(National Synchrotron Light Source II, Brookhaven National Laboratory)
Xiaojing Huang
(National Synchrotron Light Source II, Brookhaven National Laboratory)
Hanfei Yan
(National Synchrotron Light Source II, Brookhaven National Laboratory)
Ajith Pattammattel
(National Synchrotron Light Source II, Brookhaven National Laboratory)
Yong S. Chu
(National Synchrotron Light Source II, Brookhaven National Laboratory)
Shyue Ping Ong
(University of California, San Diego)
Shriram Ramanathan
(School of Materials Engineering, Purdue University)
Oleg Shpyrko
(University of California, San Diego)
Alex Frano
(University of California, San Diego)
We used nanofocused x-ray beam for spectroscopic and diffraction studies of the hydrogen-doped SmNiO3 film. We observed partial reduction of nickel valence due to addition of an extra electron from the dopant. We argue that the changes in electronic structure is mainly responsible for formation of the insulating phase, while the subtle changes in the crystal structure are not so significant. This allows one to use hydrogen and other light elements to create new phases in other complex transition metal oxides.
*“Quantum Materials for Energy Efficient Neuromorphic Computing”, an Energy Frontier Research Center funded by the U.S. Department of Energy, Office of Science, Basic Energy Sciences under Award no. DE-SC0019273.
U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences, Award no. DE-SC0019273 and contracts no. DE-AC02-06CH11357 and no. DE-SC0012704.
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