Scientists at the Oak Ridge National Laboratory studied hafnia's potential in semiconductor applications, revealing its behavior can be influenced by the surrounding atmosphere. Their findings offer promising implications for future memory technologies. A team of scientists from the Department of
Using the ultrahigh-vacuum atomic force microscope at DOE’s Center for Nanophase Materials Sciences at ORNL, researchers found unique environmentally induced ferroelectric phase transitions in hafnium zirconium oxide, a material important in developing advanced semiconductors. Credit: Arthur Baddorf/ORNL, Dept. of Energy
Kelley performed the experiments and envisioned the project in collaboration with Sergei Kalinin of the University of Tennessee, Knoxville.Materials typically used in memory applications have a surface, or dead, layer that interferes with the material’s ability to store information. As materials are scaled down to only several nanometers thick, the effect of the dead layer becomes extreme enough to completely stop the functional properties.
“Leveraging the unique CNMS capabilities enabled us to do this type of work,” Kelley said. “We basically changed the environment all the way from ambient atmosphere to ultrahigh vacuum. In other words, we removed all gases in the atmosphere to negligible levels and measured these responses, which is extremely hard to do.”
The model theory that underpinned this research project was the result of a long research partnership between Kalinin and Anna Morozovska at the Institute of Physics, National Academy of Sciences of Ukraine.“I have worked with my colleagues in Kyiv on physics and chemistry of ferroelectrics for almost 20 years now,” Kalinin said. “They did a lot for this paper while almost on the front line of the war in that country. These people keep doing science in conditions that most of us cannot imagine.
Brasil Últimas Notícias, Brasil Manchetes
Similar News:Você também pode ler notícias semelhantes a esta que coletamos de outras fontes de notícias.
Jessica Alba Dishes on Two Parenting Secrets That Help Her Connect With Her KidsThe actress and businesswoman has two especially helpful tools in her parenting toolbox.
Consulte Mais informação »
Unlocking Ancient Climate Secrets – Melting Ice Likely Triggered Climate Change Over 8,000 Years AgoScientists analyzing geological samples from Scotland's Ythan Estuary have pinpointed a melting ice sheet as the likely trigger of a major climate-change event just over 8,000 years ago. The study, conducted by a collaborative team of geoscientists from four universities in Yorkshire under the le
Consulte Mais informação »
– How Genetic Shedding Unveils Species SecretsEcologists have shown that the genetic material that species shed into their environments can reveal not only the presence of the species but also a broad range of information about the genetics of whole populations. This information can assist researchers in pinpointing the origin of a newly invasi
Consulte Mais informação »
Hawkgirl #3 Preview: Bat Secrets and Bird FightsIn Hawkgirl 3: an army of bird-themed villains, a clueless bat, and a gang confrontation. Just another day in Gotham.
Consulte Mais informação »
– Stanford Scientists Unravel Secrets of RegenerationIn some organisms, damage to one body part can trigger healing in another area. Recent findings indicate that this whole-body response isn’t a side effect: it’s the main feature. A mouse injured on one leg experiences an “awakening” of stem cells in the other leg as if the cells are preparing to he
Consulte Mais informação »