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X-ray induced grain boundary formation and grain rotation in Bi2Se3

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arxiv 2403.08089 v2 pith:HHZTUMQP submitted 2024-03-12 cond-mat.mtrl-sci

Kento Katagiri , Bernard Kozioziemski , Eric Folsom , Sebastian Göde , Yifan Wang , Karen Appel , Darshan Chalise , Philip K. Cook
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Jon Eggert Marylesa Howard Sungwon Kim Zuzana Konôpková Mikako Makita Motoaki Nakatsutsumi Martin M. Nielsen Alexander Pelka Henning F. Poulsen Thomas R. Preston Tharun Reddy Jan-Patrick Schwinkendorf Frank Seiboth Hugh Simons Bihan Wang Wenge Yang Ulf Zastrau Hyunjung Kim Leora E. Dresselhaus-Marais
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classification cond-mat.mtrl-sci
keywords grainx-rayboundaryradiationbi2se3formationintenserotation
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Optimizing grain boundary characteristics in polycrystalline materials can improve their properties. Many processing methods have been developed for grain boundary manipulation, including the use of intense radiation in certain applications. In this work, we used X-ray free electron laser pulses to irradiate single-crystalline bismuth selenide (Bi2Se3) and observed grain boundary formation and subsequent grain rotation in response to the X-ray radiation. Our observations with simultaneous transmission X-ray microscopy and X-ray diffraction demonstrate how intense X- ray radiation can rapidly change size and texture of grains.

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