Arjun Yodh Helps Uncover Mechanism Behind Solid-Solid Phase Transitions

Working in collaboration with researchers from the Hong Kong University of Science and Technology, Arjun Yodh, director of the Laboratory for Research on the Structure of Matter and James M. Skinner Professor of Science, published an article in Nature Materials on solid-solid phase transitions. These transitions occur when two solids made of the same elements but with different geometric arrangements of the atoms, or crystal phases, produce materials with different properties—diamonds and coal are a vivid example. The team found that some crystals have an easier time of making the solid-solid transition if they take it in two steps. The observations provide new insight for all sorts of solid-solid phase transformations, and have potential implications for development and manufacture of alloys, as well as natural processes that occur deep within Earth's mantle.

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Arts & Sciences News

Marisa C. Kozlowski Named Next Associate Dean for the Natural Sciences

Kozlowski, who joined the Penn faculty in 1997, succeeds Mark Trodden, who transitions to the Dean of Penn Arts & Sciences on June 1.

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One Fourth Year, One Alum Receive 2025 Hertz Fellowship

Eric Tao, C’25, Gr’25 (left), and Suraj Chandran, C’23, were awarded the honor, part of a group of 19 fellows selected this year. Each one receives five years of funding toward a doctoral program.

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Benjamin Nathans Wins 2025 Pulitzer Prize in General Nonfiction

Nathans, Alan Charles Kors Endowed Term Professor of History, won for his book “To the Success of Our Hopeless Cause: The Many Lives of the Soviet Dissident Movement.”

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Mark Devlin Elected to National Academy of Sciences

He joins three others from Penn to receive the honor this year, all recognized for “distinguished and continuing achievements in original research.”

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Michael Jones-Correa and Sophia Rosenfeld Elected to American Academy of Arts & Sciences

They join three others from the University of Pennsylvania, selected as part of the Academy’s mission to convene leaders from “every field of human endeavor to examine new ideas, address issues of importance to the nation and the world, and work together.”

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Eva Del Soldato Awarded 2025-26 Rome Prize

She joins Sean Burkholder, of the Weitzman School of Design, and just 33 others in receiving the prestigious honor from the American Academy in Rome.

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