Spin of nano-accoustic wave (IMAGE) University of Münster Caption Representation of the spin of a nano-acoustic wave. This propagates in a nanowire lying on a piezoelectric material. The small arrows symbolise the direction and strength of the gyrating electric field. The large arrows at the top show the direction of propagation and the transverse spin of the sound wave. The colour coding in the nanowire or in the crystal indicates the piezoelectric potential (blue: minimum, red: maximum). Credit Maximilian Sonner Usage Restrictions The use of any images that may be sent with this press release is permitted exclusively in the above-mentioned context and with reference to the source. License Licensed 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.