• Latest
  • Trending
  • All
  • Capacitors
  • Resistors
  • Inductors
  • Filters
  • Fuses
  • Non-linear Passives
  • Applications
  • Integrated Passives
  • Oscillators
  • Passive Sensors
  • New Technologies
  • Aerospace & Defence
  • Automotive
  • Industrial
  • Market & Supply Chain
  • Medical
  • RF & Microwave
  • Telecommunication

Stretching a Metal Into an Insulator

15.3.2017

Bourns Unveils New Data and Signal Surge Protective Devices

30.11.2023

Bourns Unveils Thermally Protected MOV Surge Protective Devices

28.11.2023

 Exxelia Opens Manufacturing Site in Morocco

27.11.2023

Sumida Extends Ferrite Drum Inductors Offering with Lower DCR and Wider Inductance Range

23.11.2023

How Clock Oscillator Works

23.11.2023

Toroidal Flat Wire PFC Inductors vs. Round Wire PFC Inductors; Würth Elektronik Webinar

23.11.2023
  • Home
  • Privacy Policy
  • EPCI Membership & Advertisement
  • About
No Result
View All Result
NEWSLETTER
Passive Components Blog
  • Home
  • NewsFilter
    • All
    • Aerospace & Defence
    • Antenna
    • Applications
    • Automotive
    • Capacitors
    • Circuit Protection Devices
    • Filters
    • Fuses
    • Inductors
    • Industrial
    • Integrated Passives
    • Market & Supply Chain
    • Market Insights
    • Medical
    • New Materials & Supply
    • New Technologies
    • Non-linear Passives
    • Oscillators
    • Passive Sensors
    • Resistors
    • RF & Microwave
    • Telecommunication
    • Weekly Digest

    Bourns Unveils New Data and Signal Surge Protective Devices

    Bourns Unveils Thermally Protected MOV Surge Protective Devices

     Exxelia Opens Manufacturing Site in Morocco

    Sumida Extends Ferrite Drum Inductors Offering with Lower DCR and Wider Inductance Range

    How Clock Oscillator Works

    Toroidal Flat Wire PFC Inductors vs. Round Wire PFC Inductors; Würth Elektronik Webinar

    Quasi-Lumped Filters: Combining Filter Technologies to Create Higher-Value Compact Filters

    TDK Unveils EMC Noise Suppression Filters for Audio Lines

    November 23 – Interconnect, Passives & Electromechanical Components Market Insights

    Trending Tags

    • Ripple Current
    • RF
    • Leakage Current
    • Tantalum vs Ceramic
    • Snubber
    • Low ESR
    • Feedthrough
    • Derating
    • Dielectric Constant
    • New Products
    • Market Reports
  • VideoFilter
    • All
    • Antenna videos
    • Capacitor videos
    • Filter videos
    • Fuse videos
    • Inductor videos
    • Non-linear passives videos
    • Oscillator videos
    • Passive sensors videos
    • Resistor videos
    • Sensors

    Addressing EMC Issues; Texas Instruments and Würth Elektronik Webinar

    DC-Link Film Capacitors for DC-Charger Applications; WE Webinar

    Transformer Design for EMC; WE Webinar

    Filter Calculation and Selection with REDEXPERT EMI Filter Designer; WE Webinar

    Experimental Demonstration of Inductor Back Electromotive Force EMF

    Charging/Discharging of Linear andNon-linear Capacitors

    How to Select Inductor For Switching Power Supply

    Oscillators Integration, Selection Guide and Design In

    Input Capacitor Selection for Power Supplies – Part 3: Electrolytic Capacitors

    Trending Tags

    • Capacitors explained
    • Inductors explained
    • Resistors explained
    • Filters explained
    • Application Video Guidelines
    • EMC
    • New Products
    • Ripple Current
    • Simulation
    • Tantalum vs Ceramic
  • Knowledge Blog
  • Suppliers
    • Preferred Suppliers
    • Who is Who
  • Events
  • Home
  • NewsFilter
    • All
    • Aerospace & Defence
    • Antenna
    • Applications
    • Automotive
    • Capacitors
    • Circuit Protection Devices
    • Filters
    • Fuses
    • Inductors
    • Industrial
    • Integrated Passives
    • Market & Supply Chain
    • Market Insights
    • Medical
    • New Materials & Supply
    • New Technologies
    • Non-linear Passives
    • Oscillators
    • Passive Sensors
    • Resistors
    • RF & Microwave
    • Telecommunication
    • Weekly Digest

    Bourns Unveils New Data and Signal Surge Protective Devices

    Bourns Unveils Thermally Protected MOV Surge Protective Devices

     Exxelia Opens Manufacturing Site in Morocco

    Sumida Extends Ferrite Drum Inductors Offering with Lower DCR and Wider Inductance Range

    How Clock Oscillator Works

    Toroidal Flat Wire PFC Inductors vs. Round Wire PFC Inductors; Würth Elektronik Webinar

    Quasi-Lumped Filters: Combining Filter Technologies to Create Higher-Value Compact Filters

    TDK Unveils EMC Noise Suppression Filters for Audio Lines

    November 23 – Interconnect, Passives & Electromechanical Components Market Insights

    Trending Tags

    • Ripple Current
    • RF
    • Leakage Current
    • Tantalum vs Ceramic
    • Snubber
    • Low ESR
    • Feedthrough
    • Derating
    • Dielectric Constant
    • New Products
    • Market Reports
  • VideoFilter
    • All
    • Antenna videos
    • Capacitor videos
    • Filter videos
    • Fuse videos
    • Inductor videos
    • Non-linear passives videos
    • Oscillator videos
    • Passive sensors videos
    • Resistor videos
    • Sensors

    Addressing EMC Issues; Texas Instruments and Würth Elektronik Webinar

    DC-Link Film Capacitors for DC-Charger Applications; WE Webinar

    Transformer Design for EMC; WE Webinar

    Filter Calculation and Selection with REDEXPERT EMI Filter Designer; WE Webinar

    Experimental Demonstration of Inductor Back Electromotive Force EMF

    Charging/Discharging of Linear andNon-linear Capacitors

    How to Select Inductor For Switching Power Supply

    Oscillators Integration, Selection Guide and Design In

    Input Capacitor Selection for Power Supplies – Part 3: Electrolytic Capacitors

    Trending Tags

    • Capacitors explained
    • Inductors explained
    • Resistors explained
    • Filters explained
    • Application Video Guidelines
    • EMC
    • New Products
    • Ripple Current
    • Simulation
    • Tantalum vs Ceramic
  • Knowledge Blog
  • Suppliers
    • Preferred Suppliers
    • Who is Who
  • Events
No Result
View All Result
Passive Components Blog
No Result
View All Result

Stretching a Metal Into an Insulator

15.3.2017
Reading Time: 3 mins read
A A

source: Newswire article

Straining a thin film controllably allows tuning of the materials’ magnetic, electronic, and catalytic properties, essential for new energy and electronic devices.

RelatedPosts

Bourns Unveils New Data and Signal Surge Protective Devices

Bourns Unveils Thermally Protected MOV Surge Protective Devices

 Exxelia Opens Manufacturing Site in Morocco

The Science

To create materials for new energy applications, scientists use heat and strain to remove oxygen atoms. However, stretching a well-ordered, thin film of strontium cobaltite lets the oxygen atoms move more freely through channels. The motion increases the escape of oxygen, and thus increases the number of vacancies. Impressively, the team created the strain-induced oxygen vacancies at temperatures as low as 300 °C, which is lower than previously possible, and in environments that usually decrease oxygen vacancies. Further, this higher vacancy concentration converted a metal into an insulator.

The Impact

Precise tailoring of material properties with strain (through changes in the oxygen vacancy concentration) is a new method to control magnetic, electronic, and catalytic properties in transition metal oxides for emerging energy and device technologies. The ability to decouple the oxygen vacancy concentration from its typical dependence on the operational environment is useful. Decoupling allows for effectively designing oxide materials with a specific ratio of oxygen atoms. The material used in this research is an oxygen “sponge.” It has enhanced catalytic activity for turning carbon monoxide into carbon dioxide at temperatures useful for rechargeable batteries, fuel cells, and more.

Summary

Stretching or compressing a material creates strain that can be a powerful tool to control oxygen vacancy concentration, as opposed to traditional methods that require adding impurities or high temperatures. Scientists led by Oak Ridge National Laboratory have used strain to tune oxygen content in epitaxial strontium cobaltite (SrCoO3-δ) thin films grown by a technique called pulsed laser epitaxy. At relatively low temperatures, as low as 300 °C, stretching the material by 2% lowered the oxygen activation barrier by roughly 30% and simultaneously reduced the oxygen enthalpy. This caused the oxygen content to decrease, creating oxygen vacancies in the crystalline structure. Previous attempts to remove oxygen at such low temperatures were not successful. To understand the experimental observation of the strong coupling between strain and oxygen stoichiometry, the team performed first-principles density functional theory calculations. Specifically, computing the energies for moving an oxygen atom into one of the vacancy sites (enthalpy) and for diffusion of the oxygen atoms from one vacancy site to another in the open network structure were keys to predicting the ground state and transport properties. These calculations showed that stretching decreased the energetic stability of the oxygen atoms in the crystalline structure, allowing for increased mobility of oxygen atoms at lower temperatures than previously possible. In contrast, compression increased the stability of oxygen atoms, immobilizing them. Stretching at these low temperatures and even in environments that usually introduce oxygen into materials (oxidizing environments) decreased oxygen concentration and increased the number of oxygen vacancies. These strain-induced defects resulted in a change of the materials’ electronic properties, from a ferromagnetic metal to an antiferromagnetic insulator, with increasing strain. The research shows that strain can be used as a knob for fine tuning of oxygen concentrations, allowing the control of the materials’ magnetic, electronic, and catalytic properties without conventional cationic dopants. The results will have immediate benefits in improving ionic conduction in solar oxide fuel cells and developing high-performance oxygen sensors and membranes.

Funding

This work was supported by the U.S. Department of Energy (DOE), Office of Science, Basic Energy Sciences, Materials Science and Engineering Division, and included research at the Advanced Photon Source, a DOE Office of Science user facility.

Publications

J.R. Petrie, C. Mitra, H. Jeen, W.S. Choi, T.L. Meyer, F.A. Reboredo, J.W. Freeland, G. Eres, and H.N. Lee, “Strain control of oxygen vacancies in epitaxial strontium cobaltite films.” Advanced Functional Materials 26, 1564 (2016). [DOI: 10.1002/adfm.201504868]

Related Posts

Market & Supply Chain

 Exxelia Opens Manufacturing Site in Morocco

27.11.2023
27
Inductors

Sumida Extends Ferrite Drum Inductors Offering with Lower DCR and Wider Inductance Range

23.11.2023
33
Inductors

Toroidal Flat Wire PFC Inductors vs. Round Wire PFC Inductors; Würth Elektronik Webinar

23.11.2023
68

Upcoming Events

Dec 4
20:00 - 21:00 CET

Film Capacitors: The Versatility and Stability

Dec 5
15:00 - 16:00 CET

High Voltage Power Distribution Units and Fuse Selection Importance

Dec 6
11:00 - 12:00 CET

Miniaturization, mechatronics, microvia: SLIM.flex PCB

View Calendar

Popular Posts

  • What is a Dielectric Constant of Plastic Materials ?

    4 shares
    Share 4 Tweet 0
  • Ripple Current and its Effects on the Performance of Capacitors

    3 shares
    Share 3 Tweet 0
  • Understanding High-Precision Resistor Temperature Coefficient of Resistance

    0 shares
    Share 0 Tweet 0
  • Capacitor Selection for Coupling and Decoupling Applications

    28 shares
    Share 28 Tweet 0
  • Leakage Current Characteristics of Capacitors

    0 shares
    Share 0 Tweet 0
  • Why Low ESR Matters in Capacitor Design

    0 shares
    Share 0 Tweet 0
  • Coefficient of Linear Thermal Expansion on Polymers Explained

    0 shares
    Share 0 Tweet 0
  • Flying Capacitors Explained

    0 shares
    Share 0 Tweet 0
  • How to Design an Inductor

    0 shares
    Share 0 Tweet 0
  • Inductors and RF Chokes Basics

    0 shares
    Share 0 Tweet 0

Newsletter Subscription

 

Archive

2023
2022
2021
2020
2019
2018
2017

Symposium

Passive Components Networking Symposium

Passives e-Learning

Knowledge Blog

  • Home
  • Privacy Policy
  • EPCI Membership & Advertisement
  • About

© EPCI - Premium Passive Components Educational and Information Site

No Result
View All Result
  • Home
  • News
  • Video
  • Knowledge Blog
  • Preferred Suppliers
  • Events

© EPCI - Premium Passive Components Educational and Information Site

This website uses cookies. By continuing to use this website you are giving consent to cookies being used. Visit our Privacy and Cookie Policy.