Charge fractionalisation observed spectroscopically (IMAGE) Paul Scherrer Institute Caption Electrons whizzing through the kagome metal Fe3Sn2 are influenced by the proximity of a flat band (shown by the reflection of the top ball on a flat surface). This causes the electronic charge to be fractionalised, or split (shown here by the appearance of the lower ball). Researchers have now observed this effect spectroscopically. (Image: Paul Scherrer Institute / Sandy Ekahana) Credit Image: Paul Scherrer Institute / Sandy Ekahana Usage Restrictions PSI provides image and/or video material free of charge for media coverage of the content of the above text. Use of this material for other purposes is not permitted. This also includes the transfer of the image and video material into databases as well as sale by third parties. License Original content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.