An ultrashort laser pulse triggers collective excitations in an antiferromagnetic material, forming a wave. (IMAGE)
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A study has revealed that magnons are surprisingly long-lived – an important insight for designing spintronic materials in the future. In the image, an ultrashort laser pulse triggers collective excitations in an antiferromagnetic material, forming a wave. A new X-ray technique at SwissFEL allowed researchers to follow how these collective excitations, such as magnons, evolve.
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© Paul Scherrer Institute PSI/Hiroki Ueda
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