Subscribe to our free daily newsletters
. 24/7 Space News .




Subscribe to our free daily newsletters



TECH SPACE
Underlying connection found between diverse materials with extreme magnetoresistance
by Staff Writers
Princeton NJ (SPX) Jun 19, 2016


Resistance-temperature-applied-magnetic-field diagrams of materials exhibiting extreme magnetoresistance are shown. Image courtesy Cava lab. For a larger version of this image please go here.

A new study from the Cava lab has revealed a unifying connection between seemingly unrelated materials that exhibit extreme magnetoresistance, the ability of some materials to drastically change their electrical resistance in response to a magnetic field, a property that could be useful in magnetic memory applications.

"The chemistry of these materials looks completely different but they're connected on a profound level by their physics," said Robert Cava, the Russell Wellman Moore professor of chemistry and corresponding author on the work published in the Proceedings of the National Academy of Sciences.

Numerous materials with extreme magnetoresistance have been reported since the Cava lab first discovered extreme magnetoresistance (originally named 'large magnetoresistance' by Nature editors before the research field supplanted it with the current term) in WTe2 two years ago.

But in particular, researchers in the Cava lab noticed that five materials with extreme magnetoresistance yet very different structures and chemical make-up all share the same characteristics when their resistance-temperature-applied-magnetic-field diagrams are measured.

This diagram maps the temperature and magnetic field strength at which the material's magnetoresistance turns on and then saturates. Using the phase diagrams as a clue, scientists may be able to identify other materials with extreme magnetoresistance.

Detailed investigations by Fazel Tafti, a former Cava lab postdoc and physics PhD, revealed a common feature related to the materials' electronic structures, leading the researchers to propose a picture of the underlying physics that unifies these chemically disparate materials. This kind of research, where materials chemistry and materials physics meet, is what the Cava lab and its collaborators enjoy the most, Cava said.

"Now we hope that other people will think about this, and make more measurements to see whether our proposal for the unifying physics holds up to more intense scrutiny," Cava said. He was confident that first author Fazel Tafti, now an assistant professor of physics at Boston College, would get to the bottom of this phenomenon. "Physicists quest for truth," he said.

Research paper: Tafti, F. F.; Gibson, Q.; Kushwaha, S.; Krizan, J. W.; Haldolaarachchige, N.; Cava, R. J. "Temperature-field phase diagram of extreme magnetoresistance." Published online before print June 7, 2016.


Thanks for being here;
We need your help. The SpaceDaily news network continues to grow but revenues have never been harder to maintain.

With the rise of Ad Blockers, and Facebook - our traditional revenue sources via quality network advertising continues to decline. And unlike so many other news sites, we don't have a paywall - with those annoying usernames and passwords.

Our news coverage takes time and effort to publish 365 days a year.

If you find our news sites informative and useful then please consider becoming a regular supporter or for now make a one off contribution.

SpaceDaily Contributor
$5 Billed Once


credit card or paypal
SpaceDaily Monthly Supporter
$5 Billed Monthly


paypal only

.


Related Links
Princeton University
Space Technology News - Applications and Research






Comment on this article via your Facebook, Yahoo, AOL, Hotmail login.

Share this article via these popular social media networks
del.icio.usdel.icio.us DiggDigg RedditReddit GoogleGoogle

Previous Report
TECH SPACE
Neutrons reveal unexpected magnetism in rare-earth alloy
Oak Ridge TN (SPX) Jun 15, 2016
A new study by a multi-institutional team, led by researchers from Brookhaven National Laboratory and Stony Brook University, has revealed exotic magnetic properties in a rare-earth based intermetallic compound. Similar studies suggest a better understanding of those types of behaviors could lead to applications in quantum computing and improved storage device technologies. Researchers at ... read more


TECH SPACE
US may approve private venture moon mission: report

Fifty Years of Moon Dust

Airbus Defence and Space to guide lunar lander to the Moon

A new, water-logged history of the Moon

TECH SPACE
Musk explains his 'cargo route' to Mars

Remarkably diverse flora in Utah, USA, trains scientists for future missions on Mars

NASA Mars Orbiters Reveal Seasonal Dust Storm Pattern

Study of Opportunity Wheel Scuff Continues

TECH SPACE
TED Talks aim for wider global reach

Disney brings its brand to Shanghai with new theme park

Tech, beauty intersect in Silicon Valley

Second Starliner Begins Assembly in Florida Factory

TECH SPACE
Experts Fear Chinese Space Station Could Crash Into Earth

Bolivia to pay back loan to China for Tupac Katari satellite

China plans 5 new space science satellites

NASA Chief: Congress Should Revise US-China Space Cooperation Law

TECH SPACE
Cygnus space capsule departs International Space Station

Russian, US Astronauts to Return From ISS on June 18

Astronauts enter inflatable room at space station

First steps into BEAM will expand the frontiers of habitats for space

TECH SPACE
MUOS-5 satellite encapsulated for launch

Airbus Safran Launchers confirms the maturity of the Ariane 6 launcher

Russian Proton-M Rocket Puts US Intelsat DLA-2 Satellite Into Orbit

US Senate reaches compromise on Russian rocket engines

TECH SPACE
New planet is largest discovered that orbits 2 suns

Cloudy Days on Exoplanets May Hide Atmospheric Water

Likely new planet may be in slow death spiral

On exoplanets, atmospheric water may be hiding behind clouds

TECH SPACE
Fighting virtual reality sickness

Cereal science: How scientists inverted the Cheerios effect

Can computers do magic?

New maths accurately captures liquids and surfaces moving in synergy




Memory Foam Mattress Review
Newsletters :: SpaceDaily :: SpaceWar :: TerraDaily :: Energy Daily
XML Feeds :: Space News :: Earth News :: War News :: Solar Energy News






The content herein, unless otherwise known to be public domain, are Copyright 1995-2017 - Space Media Network. All websites are published in Australia and are solely subject to Australian law and governed by Fair Use principals for news reporting and research purposes. AFP, UPI and IANS news wire stories are copyright Agence France-Presse, United Press International and Indo-Asia News Service. ESA news reports are copyright European Space Agency. All NASA sourced material is public domain. Additional copyrights may apply in whole or part to other bona fide parties. All articles labeled "by Staff Writers" include reports supplied to Space Media Network by industry news wires, PR agencies, corporate press officers and the like. Such articles are individually curated and edited by Space Media Network staff on the basis of the report's information value to our industry and professional readership. Advertising does not imply endorsement, agreement or approval of any opinions, statements or information provided by Space Media Network on any Web page published or hosted by Space Media Network. Privacy Statement