MSE professor wins Nobel Prize in Chemistry

 

Nobel Prize Awards Ceremony media
Danny Shechtman

The Nobel Foundation today announced Dan Shechtman of Iowa State University’s Department of Materials Science and Engineering, the U.S. Department of Energy’s Ames Laboratory, and Israel’s Technion has won the 2011 Nobel Prize in Chemistry.

The foundation announced The Royal Swedish Academy of Sciences picked Shechtman “for the discovery of quasicrystals.”

That 1982 discovery of crystalline materials whose atoms didn’t line up periodically like every crystal studied during 70 years of modern crystallography is regarded as a revolutionary find that changed ideas about matter and its atomic arrangement.

Shechtman, who goes by “Danny,” compared winning the Nobel Prize to carrying a country’s flag at the Olympics. In this case, he’s carrying the banner for an international team of quasicrystal scientists.

“I am the spearhead of the science of quasicrystals, but without the thousands of enthusiastic scientists around the globe, quasicrystals would not be what they are today,” he said. “Quasicrystals are still an enigma in many ways, waiting to unfold, and I admire the researchers who over the years became friends and who for a quarter of a century have elucidated this science.”

Pat Thiel – an Iowa State Distinguished Professor of Chemistry, a professor in materials science and engineering, and a faculty scientist for the U.S. Department of Energy’s Ames Laboratory – who also studies quasicrystals, said Shechtman’s discovery meant scientific definitions had to be changed and textbooks rewritten.

“What Danny did was fantastic science,” she said. “He instigated a scientific revolution.”

That’s not what he set out to do during a sabbatical from the Technion and a two-year stint in the United States at what’s now known as the National Institute of Standards and Technology.

Shechtman was studying rapidly solidified aluminum alloys with a toolbox that included transmission electron microscopy, X-ray diffraction and neutron diffraction. The transmission electron microscopy revealed a structure that science said was impossible: a pattern that when rotated a full circle repeats itself 10 times.

In his notebook that day, Shechtman wrote “(10 Fold ???).” Later, he found the pattern was really a five-fold rotation, but that didn’t show up in the first experiments.

“For 70 years until 1982, all crystals studied, hundreds of thousands of them, were found to be periodic,” he said. “Only certain rotational symmetries are allowed in this periodic array and these are 1,2,3,4,6 and nothing else. This is why, when I saw the ten-fold rotational symmetry, I was so surprised.”

Shechtman did follow-up experiments to confirm his findings and published his discovery in 1984. His work was widely questioned.

“For a long time it was me against the world,” he said. “I was a subject of ridicule and lectures about the basics of crystallography. The leader of the opposition to my findings was the two-time Nobel Laureate Linus Pauling, the idol of the American Chemical Society and one of the most famous scientists in the world. For years, till his last day, he fought against quasi-periodicity in crystals. He was wrong, and after a while, I enjoyed every moment of this scientific battle, knowing that he was wrong.”

Shechtman is an Iowa State professor of materials science and engineering, a research scientist for the Ames Laboratory, and the Philip Tobias Professor of Materials Science at the Technion – Israel Institute of Technology. He is currently at the Technion in Haifa, Israel. The 70-year-old scientist joined Iowa State and the Ames Lab in 2004 and spends about four months a year in Iowa. He will return to Ames in mid-February.

He continues to study magnesium alloys and other materials that are strong but can also be stretched or shaped without breaking.

And although the applications of quasicrystals are limited, Shechtman said they are important for changing a long-held scientific paradigm.

“People should be interested in scientific advances because the body of knowledge generated by the scientific community improves our lives.” he said. “Go back 100 years and see the difference, including life expectancy and life quality.”

Contacts:
Dan Shechtman, Materials Science and Engineering, Ames Laboratory, the Technion -Israel Institute of Technology, 011-972-4-829-4299, dans@ameslab.gov

Pat Thiel, Chemistry and Ames Laboratory, (515) 294-8985, thiel@ameslab.gov

Alex King, Ames Laboratory Director, (515) 294-2770, alexking@ameslab.gov

Steve Karsjen, Ames Laboratory, (515) 294-5643, karsjen@ameslab.gov

Mike Krapfl, News Service, (515) 294-4917, mkrapfl@iastate.edu

Jonathan Wickert, College of Engineering, 515-294-9988, wickert@iastate.edu

Jessi Strawn, College of Engineering, (515) 294-2452, jlstrawn@iastate.edu

6 thoughts on “MSE professor wins Nobel Prize in Chemistry

  1. Please tell us Prof. Schechtman’s educational and personal background. Congratulations to him and Iowa State.

  2. Way to go, Danny! I hope you remember the enameling classes at Glen Echo and the visit I made to your lab as well as your visits to my home studio. I have even more tools now!

    I retired from NIH a while ago and now to metal things from my home studio. Some enameling, some engraving, some blacksmithing.

    I am very excited for you. I ran into a reference to some of your work in a Scientific American Magazine a while back and I was pleased to see your name again in the NY TImes!

    I hope you remember me and the titanium, tantalum and niobium we anodized in your lab in Gaithersburg.
    Tina Chisena

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