Nanotechnology Now

Our NanoNews Digest Sponsors

Heifer International

Wikipedia Affiliate Button

Home > Press > Piezomagnetic material changes magnetic properties when stretched

Top: A piece of BaFe2As2 is stretched while magnetic measurements are taken (the copper wire coil is part of the NMR device). Lower diagram shows atoms in a plane, with black arrows showing how magnetic spins lie in plane and point in opposite directions. Grey arrows show how the magnetic spin of atoms shifts as the material is stretched.
CREDIT
Nicholas Curro, UC Davis
Top: A piece of BaFe2As2 is stretched while magnetic measurements are taken (the copper wire coil is part of the NMR device). Lower diagram shows atoms in a plane, with black arrows showing how magnetic spins lie in plane and point in opposite directions. Grey arrows show how the magnetic spin of atoms shifts as the material is stretched. CREDIT Nicholas Curro, UC Davis

Abstract:
Piezoelectric materials, which generate an electric current when compressed or stretched, are familiar and widely used: think of lighters that spark when you press a switch, but also microphones, sensors, motors and all kinds of other devices. Now a group of physicists has found a material with a similar property, but for magnetism. This "piezomagnetic" material changes its magnetic properties when put under mechanical strain.

Piezomagnetic material changes magnetic properties when stretched

Davis, CA | Posted on March 22nd, 2018

"Piezomagnetic materials are rarely found in nature, as far as I'm aware," said Nicholas Curro, professor of physics at UC Davis and senior author of a paper on the discovery published March 13 in the journal Nature Communications.

Curro and colleagues were studying a barium-iron-arsenic compound, BaFe2As2, that can act as a superconductor at temperatures of about 25 Kelvin when doped with small amounts of other elements. This type of iron-based superconductor is interesting because although it has to be kept pretty cold to work, it could be stretched into wires or cables.

BaFe2As2 is what is called a "nematic" crystal because its structure goes through a phase transition before it becomes superconducting. In the case of BaFe2As2, its crystal structure goes from a square to a rectangular configuration.

Curro and graduate students Tanat Kissikov and Matthew Lawson were attempting to study the material by nuclear magnetic resonance (NMR) imaging while stretching it, to see if they could force it into the rectangular configuration. To their surprise, the magnetic properties of BaFe2As2 changed as they stretched it.

The material is not a bulk magnet - the spins of its atoms point in alternating opposite directions, making it an antiferromagnet. But the direction of those magnetic spins does change in a measurable way when under stress, they found.

"The real surprise is that it appears that the direction of magnetism can change and come out of plane," Curro said.

At this point, there's no theory to explain these results, Curro said. His lab is looking to see if other materials can show the same behavior and if mechanical strain can affect the superconducting properties of the material (these experiments were not carried out at temperatures where BaFe2As2 is a superconductor).

The discovery could have applications in new ways to look for strain within materials such as aircraft components, Curro said.

###

Other coauthors on the paper are Rajib Sarkar, Institute for Solid State Physics, Dresden; Blaine Bush, UC Davis; Erik Timmons, Makariy Tanatar, Ruslan Prozorov, Sergey Bud'ko and Paul Canfield, Ames Laboratory, U.S. Department of Energy and Iowa State University; and R. M. Fernandes, University of Minnesota, Minneapolis. The work was supported by NSF and the U.S. Department of Energy Office of Science. The Ames Laboratory is operated for the U.S. Department of Energy by Iowa State University.

####

For more information, please click here

Contacts:
Andy Fell

Copyright © University of California, Davis

If you have a comment, please Contact us.

Issuers of news releases, not 7th Wave, Inc. or Nanotechnology Now, are solely responsible for the accuracy of the content.

Bookmark:
Delicious Digg Newsvine Google Yahoo Reddit Magnoliacom Furl Facebook

Related Links

RELATED JOURNAL ARTICLE:

Related News Press

News and information

Birth of a hybrid: High-temperature synthesis under pressure helps to combine properties of metals and ceramics December 15th, 2018

The role of lipid nanoparticles and its surface modification in reaching the brain: This article by Dr. Manoli Igartua et al. is published in Current Drug Delivery, Volume 15, Issue 9, 2018 December 14th, 2018

Researchers use jiggly Jell-O to make powerful new hydrogen fuel catalyst: The inexpensive new material can split water just as efficiently as costly platinum December 14th, 2018

IMDEA Nanociencia and Universidad Autónoma de Madrid researchers have demonstrated that graphene deposited on a metal surface promotes an unusual chemical reaction that would hardly take place under noncatalyzed conditions. December 14th, 2018

Collagen nanofibrils in mammalian tissues get stronger with exercise December 14th, 2018

Magnetism

IMDEA Nanociencia and Universidad Autónoma de Madrid researchers have demonstrated that graphene deposited on a metal surface promotes an unusual chemical reaction that would hardly take place under noncatalyzed conditions. December 14th, 2018

Insights into magnetic bacteria may guide research into medical nanorobots December 12th, 2018

A new 'spin' on kagome lattices: Team's findings shed new light on the presence of spin-orbit coupling and topological spin textures in kagome lattices December 9th, 2018

Superconductivity

Oxford Instruments participates in the launch of the European Quantum Technology Flagship Programme ‘QMiCS’ December 13th, 2018

Physicists name and codify new field in nanotechnology: ‘electron quantum metamaterials:’ UC Riverside’s Nathaniel Gabor and colleague formulate a vision for the field in a perspective article November 5th, 2018

Laboratories

Scientists produce 3D chemical maps of single bacteria: Researchers at NSLS-II used ultrabright x-rays to generate 3-D nanoscale maps of a single bacteria's chemical composition with unparalleled spatial resolution November 16th, 2018

Unlocking the Secrets of Metal-Insulator Transitions: X-ray photon correlation spectroscopy at NSLS-II's CSX beamline used to understand electrical conductivity transitions in magnetite November 8th, 2018

Nanotech Artisans Sculpt with DNA November 5th, 2018

Govt.-Legislation/Regulation/Funding/Policy

Researchers use jiggly Jell-O to make powerful new hydrogen fuel catalyst: The inexpensive new material can split water just as efficiently as costly platinum December 14th, 2018

IMDEA Nanociencia and Universidad Autónoma de Madrid researchers have demonstrated that graphene deposited on a metal surface promotes an unusual chemical reaction that would hardly take place under noncatalyzed conditions. December 14th, 2018

Collagen nanofibrils in mammalian tissues get stronger with exercise December 14th, 2018

Oxford Instruments participates in the launch of the European Quantum Technology Flagship Programme ‘QMiCS’ December 13th, 2018

Possible Futures

Birth of a hybrid: High-temperature synthesis under pressure helps to combine properties of metals and ceramics December 15th, 2018

Vitamin E TPGS emulsified vinorelbine bitartrate loaded solid lipid nanoparticles (SLN): This article by Dr. Sanjay Singh et al. is published in Current Drug Delivery, Volume 15 , Issue 8 , 2018 December 14th, 2018

Researchers use jiggly Jell-O to make powerful new hydrogen fuel catalyst: The inexpensive new material can split water just as efficiently as costly platinum December 14th, 2018

IMDEA Nanociencia and Universidad Autónoma de Madrid researchers have demonstrated that graphene deposited on a metal surface promotes an unusual chemical reaction that would hardly take place under noncatalyzed conditions. December 14th, 2018

Discoveries

Birth of a hybrid: High-temperature synthesis under pressure helps to combine properties of metals and ceramics December 15th, 2018

A summary of electrospun nanofibers as drug delivery system: This article by Dr. José Manuel Cornejo Bravo et al. is published in Current Drug Delivery, Volume 15 , Issue 10 , 2018 December 14th, 2018

Vitamin E TPGS emulsified vinorelbine bitartrate loaded solid lipid nanoparticles (SLN): This article by Dr. Sanjay Singh et al. is published in Current Drug Delivery, Volume 15 , Issue 8 , 2018 December 14th, 2018

Researchers use jiggly Jell-O to make powerful new hydrogen fuel catalyst: The inexpensive new material can split water just as efficiently as costly platinum December 14th, 2018

Materials/Metamaterials

Birth of a hybrid: High-temperature synthesis under pressure helps to combine properties of metals and ceramics December 15th, 2018

Researchers use jiggly Jell-O to make powerful new hydrogen fuel catalyst: The inexpensive new material can split water just as efficiently as costly platinum December 14th, 2018

IMDEA Nanociencia and Universidad Autónoma de Madrid researchers have demonstrated that graphene deposited on a metal surface promotes an unusual chemical reaction that would hardly take place under noncatalyzed conditions. December 14th, 2018

Iran Develops Water-Repellent Nano-Paint December 5th, 2018

Announcements

Birth of a hybrid: High-temperature synthesis under pressure helps to combine properties of metals and ceramics December 15th, 2018

The role of lipid nanoparticles and its surface modification in reaching the brain: This article by Dr. Manoli Igartua et al. is published in Current Drug Delivery, Volume 15, Issue 9, 2018 December 14th, 2018

A summary of electrospun nanofibers as drug delivery system: This article by Dr. José Manuel Cornejo Bravo et al. is published in Current Drug Delivery, Volume 15 , Issue 10 , 2018 December 14th, 2018

Vitamin E TPGS emulsified vinorelbine bitartrate loaded solid lipid nanoparticles (SLN): This article by Dr. Sanjay Singh et al. is published in Current Drug Delivery, Volume 15 , Issue 8 , 2018 December 14th, 2018

Interviews/Book Reviews/Essays/Reports/Podcasts/Journals/White papers

Birth of a hybrid: High-temperature synthesis under pressure helps to combine properties of metals and ceramics December 15th, 2018

The role of lipid nanoparticles and its surface modification in reaching the brain: This article by Dr. Manoli Igartua et al. is published in Current Drug Delivery, Volume 15, Issue 9, 2018 December 14th, 2018

Researchers use jiggly Jell-O to make powerful new hydrogen fuel catalyst: The inexpensive new material can split water just as efficiently as costly platinum December 14th, 2018

IMDEA Nanociencia and Universidad Autónoma de Madrid researchers have demonstrated that graphene deposited on a metal surface promotes an unusual chemical reaction that would hardly take place under noncatalyzed conditions. December 14th, 2018

Aerospace/Space

Three CEA Projects Awarded European Research Council Synergy Grants November 26th, 2018

'Smart skin' simplifies spotting strain in structures: Rice U. invention can use fluorescing carbon nanotubes to reveal stress in aircraft, structures November 15th, 2018

Epoxy compound gets a graphene bump: Rice scientists combine graphene foam, epoxy into tough, conductive composite November 14th, 2018

Optimization of alloy materials: Diffusion processes in nano particles decoded November 13th, 2018

Battery Technology/Capacitors/Generators/Piezoelectrics/Thermoelectrics/Energy storage

Rice U. scientists form flat tellurium: Two-dimensional element shows promise for solar cells and other optoelectronics October 26th, 2018

Nanotubes may give the world better batteries: Rice U. scientists' method quenches lithium metal dendrites in batteries that charge faster, last longer October 25th, 2018

Big award enables study of small surfaces: Rice U.'s Matt Jones wins Packard Fellowship to view nanoscale chemical reactions October 15th, 2018

High-performance self-assembled catalyst for SOFC October 12th, 2018

Research partnerships

Researchers use jiggly Jell-O to make powerful new hydrogen fuel catalyst: The inexpensive new material can split water just as efficiently as costly platinum December 14th, 2018

IMDEA Nanociencia and Universidad Autónoma de Madrid researchers have demonstrated that graphene deposited on a metal surface promotes an unusual chemical reaction that would hardly take place under noncatalyzed conditions. December 14th, 2018

Oxford Instruments participates in the launch of the European Quantum Technology Flagship Programme ‘QMiCS’ December 13th, 2018

Three CEA Projects Awarded European Research Council Synergy Grants November 26th, 2018

NanoNews-Digest
The latest news from around the world, FREE



  Premium Products
NanoNews-Custom
Only the news you want to read!
 Learn More
NanoStrategies
Full-service, expert consulting
 Learn More











ASP
Nanotechnology Now Featured Books




NNN

The Hunger Project