Featured Research

from universities, journals, and other organizations

Physicists provide answers for predicted behavior in relaxors: Thin films studied used in electronic devices

Date:
December 12, 2013
Source:
University of Arkansas, Fayetteville
Summary:
New research shows that behavior can be predicted and understood in thin films made of materials called relaxors, which can be used in electronic devices.

This phase diagram will help scientists design new transducers and other devices made of relaxor thin films.
Credit: Sergey Prosandeev and Laurent Bellaiche, University of Arkansas

New research at the University of Arkansas shows that behavior can be predicted and understood in thin films made of materials called relaxors, which can be used in electronic devices.

Physicists Sergey Prosandeev and Laurent Bellaiche, with Dawei Wang at Xi'an Jiaotong University in China, report their findings in an article titled "Properties of epitaxial films made of relaxor ferroelectrics," in current issue of the journal Physical Review Letters.

Prosandeev and Bellaiche study ferroelectric materials, which convert small changes in mechanical energy into electrical energy, called a piezoelectric response, and are used in a wide range of applications that includes injectors in vehicles and heart implants.

In this study, the team used supercomputers at the Arkansas High Performance Computing Center to perform calculations on thin films made of a certain type of complex ferroelectrics -- called relaxors -- that were deposited on different substrates.

Their conclusions suggest how their properties could be controlled.

"One advantage of thin films is that they can be grown on different substrates, which makes their distance between atoms identical to those of the substrate," said Bellaiche, a Distinguished Professor of physics. "If you change the substrate, you change the distance between atoms in the films. We discovered what happens to the physical properties -- both microscopic and macroscopic -- when doing so."

The authors put forward a phase diagram that will help scientists design new transducers and other devices made of relaxor thin films, said Prosandeev, a research professor of physics.

"This study is important for experimentalists who grow piezoelectric films and look for new thin films that possess desired properties that are important for our daily life and technology," Prosandeev said. "This study opens a new direction in the understanding of the properties of disordered piezoelectric thin films."

Bellaiche holds the Twenty-First Century Endowed Professorship in Nanotechnology and Science Education. Prosandeev and Bellaiche are both in the University of Arkansas' Institute for Nanoscience and Engineering.


Story Source:

The above story is based on materials provided by University of Arkansas, Fayetteville. Note: Materials may be edited for content and length.


Journal Reference:

  1. S. Prosandeev, Dawei Wang, and L. Bellaiche. Properties of Epitaxial Films Made of Relaxor Ferroelectrics. Physical Review Letters, 2013 DOI: 10.1103/PhysRevLett.111.247602

Cite This Page:

University of Arkansas, Fayetteville. "Physicists provide answers for predicted behavior in relaxors: Thin films studied used in electronic devices." ScienceDaily. ScienceDaily, 12 December 2013. <www.sciencedaily.com/releases/2013/12/131212132359.htm>.
University of Arkansas, Fayetteville. (2013, December 12). Physicists provide answers for predicted behavior in relaxors: Thin films studied used in electronic devices. ScienceDaily. Retrieved October 21, 2014 from www.sciencedaily.com/releases/2013/12/131212132359.htm
University of Arkansas, Fayetteville. "Physicists provide answers for predicted behavior in relaxors: Thin films studied used in electronic devices." ScienceDaily. www.sciencedaily.com/releases/2013/12/131212132359.htm (accessed October 21, 2014).

Share This



More Matter & Energy News

Tuesday, October 21, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Thanks, Marty McFly! Hoverboards Could Be Coming In 2015

Thanks, Marty McFly! Hoverboards Could Be Coming In 2015

Newsy (Oct. 21, 2014) If you've ever watched "Back to the Future Part II" and wanted to get your hands on a hoverboard, well, you might soon be in luck. Video provided by Newsy
Powered by NewsLook.com
Robots to Fly Planes Where Humans Can't

Robots to Fly Planes Where Humans Can't

Reuters - Innovations Video Online (Oct. 21, 2014) Researchers in South Korea are developing a robotic pilot that could potentially replace humans in the cockpit. Unlike drones and autopilot programs which are configured for specific aircraft, the robots' humanoid design will allow it to fly any type of plane with no additional sensors. Ben Gruber reports. Video provided by Reuters
Powered by NewsLook.com
Graphene Paint Offers Rust-Free Future

Graphene Paint Offers Rust-Free Future

Reuters - Innovations Video Online (Oct. 21, 2014) British scientists have developed a prototype graphene paint that can make coatings which are resistant to liquids, gases, and chemicals. The team says the paint could have a variety of uses, from stopping ships rusting to keeping food fresher for longer. Jim Drury reports. Video provided by Reuters
Powered by NewsLook.com
Portable Breathalyzer Gets You Home Safely

Portable Breathalyzer Gets You Home Safely

Buzz60 (Oct. 21, 2014) Breeze, a portable breathalyzer, gets you home safely by instantly showing your blood alcohol content, and with one tap, lets you call an Uber, a cab or a friend from your contact list to pick you up. Sean Dowling (@SeanDowlingTV) has the details. Video provided by Buzz60
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:

Breaking News:

Strange & Offbeat Stories


Space & Time

Matter & Energy

Computers & Math

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile: iPhone Android Web
Follow: Facebook Twitter Google+
Subscribe: RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins