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Title: Habituation based synaptic plasticity and organismic learning in a quantum perovskite

Journal Article · · Nature Communications
 [1]; ORCiD logo [1];  [2];  [3];  [3];  [4];  [5];  [4];  [4];  [5];  [5];  [1];  [5];  [3];  [2];  [1];  [1]
  1. Purdue Univ., West Lafayette, IN (United States)
  2. Rutgers Univ., Piscataway, NJ (United States)
  3. Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States)
  4. Brookhaven National Lab. (BNL), Upton, NY (United States)
  5. Argonne National Lab. (ANL), Argonne, IL (United States)

A central characteristic of living beings is the ability to learn from and respond to their environment leading to habit formation and decision making. This behavior, known as habituation, is universal among all forms of life with a central nervous system, and is also observed in single-cell organisms that do not possess a brain. Here, we report the discovery of habituation-based plasticity utilizing a perovskite quantum system by dynamical modulation of electron localization. Microscopic mechanisms and pathways that enable this organismic collective charge-lattice interaction are elucidated by first-principles theory, synchrotron investigations, ab initio molecular dynamics simulations, and in situ environmental breathing studies. In conclusion, we implement a learning algorithm inspired by the conductance relaxation behavior of perovskites that naturally incorporates habituation, and demonstrate learning to forget: a key feature of animal and human brains. Incorporating this elementary skill in learning boosts the capability of neural computing in a sequential, dynamic environment.

Research Organization:
Argonne National Lab. (ANL), Argonne, IL (United States); Brookhaven National Laboratory (BNL), Upton, NY (United States)
Sponsoring Organization:
U.S. Army Research Laboratory, U.S. Army Research Office (ARO); National Science Foundation (NSF); Center for Spintronic Materials Interfaces and Novel Architectures (C-SPIN); Office of Naval Research; USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
Grant/Contract Number:
AC02-06CH11357; SC0012704
OSTI ID:
1375809
Journal Information:
Nature Communications, Journal Name: Nature Communications Journal Issue: 1 Vol. 8; ISSN 2041-1723
Publisher:
Nature Publishing GroupCopyright Statement
Country of Publication:
United States
Language:
English

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Cited By (13)

Artificial Synapses Emulated by an Electrolyte-Gated Tungsten-Oxide Transistor journal July 2018
Electron‐Doping Mottronics in Strongly Correlated Perovskite journal December 2019
Revealing the role of lattice distortions in the hydrogen-induced metal-insulator transition of SmNiO3 journal February 2019
Emerging perovskite materials for high density data storage and artificial synapses journal January 2018
A computational study of hydrogen doping induced metal-to-insulator transition in CaFeO 3 , SrFeO 3 , BaFeO 3 and SmMnO 3 journal January 2019
Overcoming synthetic metastabilities and revealing metal-to-insulator transition & thermistor bi-functionalities for d-band correlation perovskite nickelates journal January 2019
Delta-temperatural electronic transportation achieved in metastable perovskite rare-earth nickelate thin films journal January 2019
Organismic materials for beyond von Neumann machines journal March 2020
Correlation transports at p- / n- types in electron metastable perovskite family of rare-earth nickelates journal February 2020
Interfacial charge-transfer Mott state in iridate–nickelate superlattices journal September 2019
Carrier localization in perovskite nickelates from oxygen vacancies journal October 2019
Polymorphous band structure model of gapping in the antiferromagnetic and paramagnetic phases of the Mott insulators MnO, FeO, CoO, and NiO journal January 2018
Revealing the role of lattice distortions in the hydrogen-induced metal-insulator transition of SmNiO3 text January 2019

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