Oxygen migration enables ferroelectricity on nanoscale


IMAGE: This is Beatriz Noheda, Professor of Functional Nanomaterials at the University of Groningen, lead author of the Science paper.
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Credit: University of Groningen

Hafnium-based thin films, with a thickness of only a few nanometres, show an unconventional form of ferroelectricity. This allows the construction of nanometre-sized memories or logic devices. However, it was not clear how ferroelectricity could occur at this scale. A study that was led by scientists from the University of Groningen showed how atoms move in a hafnium-based capacitor: migrating oxygen atoms (or vacancies) are responsible for the observed switching and storage of charge. The results, which were published online by the journal Science on 15 April, point the way to new ferroelectric materials.

Ferroelectric materials exhibit spontaneous polarization, which can be reversed or switched using an electric field. It is used in non-volatile memories or the construction of logic devices. One drawback of

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Smart Education and Learning Market 2021 Industry Share, Size, Technology, Application, Revenue, Top Companies Analysis and 2028 Forecast Research Report

Smart Education and Learning and credit insurance is an effective way for enterprises, insurance companies, governments and other departments to make credit insurance a big risk diversification and transfer under the financial and credit system.

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‘Terminal Boredom’ is a treasure trove of Izumi Suzuki’s subversive science fiction

Reading the brief biography of Izumi Suzuki on publisher Verso Books’ website, it’s hard to believe she isn’t more famous. In the 1970s, she was a model and an actress in mainstream cinema and pinku eiga (erotic films), and after the death of her husband, jazz musician Kaoru Abe, she became a prolific writer of darkly playful and subversive fiction. And yet, her creative output was cut short in 1986, when she took her own life at the age of 36.

Terminal Boredom: Stories, by Izumi Suzuki
Translated by Polly Barton, Sam Bett, David Boyd, Daniel Joseph, Aiko Masubuchi and Helen O’Horan
224 pages

Although she left behind a wealth of work that embodied Japan’s counterculture, and she and Abe were the subjects of Koji Wakamatsu’s 1995 biopic “Endless Waltz,” Suzuki has little name recognition among modern readers.

“She’s virtually unknown in Japan at this point, let alone

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AllMed Healthcare Management Partners with Shatterproof for Addiction Education and Guidance Support for Employees

NORWALK, Conn., April 20, 2021 /PRNewswire/ — Shatterproof, a national nonprofit organization dedicated to reversing the addiction crisis in the United States, has announced their partnership with AllMed Healthcare Management Inc., a leading provider of utilization management and independent review services of its Just Five online education program, which will help more people learn about the disease of addiction.

AllMed will use Shatterproof Just Five as a resource for employees seeking to be better informed for themselves or family members on addiction. Shatterproof Just Five is an online, self-paced, mobile-enabled program focusing on increasing awareness, reducing stigma, and sharing information about addiction prevention and treatment. Participants will learn who is at risk, how to discern whether a person may have a substance use disorder, how to support loved ones with this disease, and more. Just Five includes six guided learning experiences that combine animated and expert

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