Nav: Home

Physicists find evidence of previously unseen transition in ferroelectrics

February 06, 2020

FAYETTEVILLE, Ark. - In a recent study, University of Arkansas physics researchers found evidence of an inverse transition in ferroelectric ultrathin films, which could lead to advances in development of data storage, microelectronics and sensors.

"We found that a disordered labyrinthine phase transforms into the more ordered parallel-stripe structure upon raising the temperature," said Yousra Nahas, first author of the study titled "Inverse Transition of Labyrinthine Domain Patterns in Ferroelectric Thin Films," published in the journal Nature. Former and present U of A physics researchers Sergei Prokhorenko, Bin Xu, Sergey Prosandeev, and Distinguished Professor Laurent Bellaiche, along with colleagues in France, also contributed to the study.

Proposed a century ago, these types of transitions seem to contradict the fundamental law that disorder increases with temperature. They have been found in other systems such as superconductors, proteins, liquid crystals and metallic alloys. But they had not been found in ferroelectric materials, which are of interest to scientists because they possess spontaneous electrical polarization that can be reversed by the application of an electric field.

The University of Arkansas researchers were able to model the transitions using the Arkansas High Performance Computing Center, which is funded in part by the Arkansas Economic Development Commission. Researchers in France demonstrated the model's predictions through laboratory experiments.

"These findings may be put at use to leap beyond current technologies by enabling fundamentally new design principles and topologically enhanced functionalities within ferroelectric films," said Nahas.
-end-
The study was supported by grants from the Defense Advanced Research Projects Agency and the Army Research Office.

University of Arkansas

Related Data Storage Articles:

Robust high-performance data storage through magnetic anisotropy
A technologically relevant material for HAMR data memories are thin films of iron-platinum nanograins.
Energy-saving servers: Data storage 2.0
A research team of Mainz University has developed a technique that will potentially halve the energy required to write data to servers and make it easier to construct complex server architectures.
New approach to DNA data storage makes system more dynamic, scalable
Researchers have developed a fundamentally new approach to DNA data storage systems, giving users the ability to read or modify data files without destroying them and making the systems easier to scale up for practical use.
Scientists take steps to create a 'racetrack memory,' potentially enhancing data storage
A team of scientists has taken steps to create a new form of digital data storage, a ''Racetrack Memory,'' which opens the possibility to both bolster computer power and lead to the creation of smaller, faster, and more energy efficient computer memory technologies.
Discovery offers new avenue for next-generation data storage
The demands for data storage and processing have grown exponentially as the world becomes increasingly connected, emphasizing the need for new materials capable of more efficient data storage and data processing.
Magnetic whirls in future data storage devices
Magnetic (anti)skyrmions are microscopically small whirls that are found in special classes of magnetic materials.
Laser writing enables practical flat optics and data storage in glass
Femtosecond laser machining has emerged as an attractive technology enabling appications ranging from eye surgery to direct writing in the bulk of transparent materials.
Researchers report progress on molecular data storage system
A Brown University team has shown that they can store and retrieve more than 200 kilobytes of digital image files by encoding the data in mixtures of new custom libraries of small molecules.
Molecular eraser enables better data storage and computers for AI
Scientists have added a crucial tool to the atomic-scale manufacturing toolkit with major implications for today's data driven -- carbon-intensive -- world, according to new research from the University of Alberta in Canada.
Research overcomes key obstacles to scaling up DNA data storage
Researchers have developed new techniques for labeling and retrieving data files in DNA-based information storage systems, addressing two of the key obstacles to widespread adoption of DNA data storage technologies.
More Data Storage News and Data Storage Current Events

Trending Science News

Current Coronavirus (COVID-19) News

Top Science Podcasts

We have hand picked the top science podcasts of 2020.
Now Playing: TED Radio Hour

Debbie Millman: Designing Our Lives
From prehistoric cave art to today's social media feeds, to design is to be human. This hour, designer Debbie Millman guides us through a world made and remade–and helps us design our own paths.
Now Playing: Science for the People

#574 State of the Heart
This week we focus on heart disease, heart failure, what blood pressure is and why it's bad when it's high. Host Rachelle Saunders talks with physician, clinical researcher, and writer Haider Warraich about his book "State of the Heart: Exploring the History, Science, and Future of Cardiac Disease" and the ails of our hearts.
Now Playing: Radiolab

Insomnia Line
Coronasomnia is a not-so-surprising side-effect of the global pandemic. More and more of us are having trouble falling asleep. We wanted to find a way to get inside that nighttime world, to see why people are awake and what they are thinking about. So what'd Radiolab decide to do?  Open up the phone lines and talk to you. We created an insomnia hotline and on this week's experimental episode, we stayed up all night, taking hundreds of calls, spilling secrets, and at long last, watching the sunrise peek through.   This episode was produced by Lulu Miller with Rachael Cusick, Tracie Hunte, Tobin Low, Sarah Qari, Molly Webster, Pat Walters, Shima Oliaee, and Jonny Moens. Want more Radiolab in your life? Sign up for our newsletter! We share our latest favorites: articles, tv shows, funny Youtube videos, chocolate chip cookie recipes, and more. Support Radiolab by becoming a member today at Radiolab.org/donate.