Difference in Mobility in Semi-conductors (image) Hokkaido University Share Print E-Mail Caption (a) In conventional semiconductors, electrons flow from the hot to the cold side with low mobility caused by ionized impurity. (b) In the newly developed semiconductor without the impurity, 2DEG can flow with high mobility. Credit Ohta H. et al., Advanced Science, November 20, 2017 Usage Restrictions This image is copyrighted and can be used for reporting this press release if properly credited. Share Print E-Mail 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.