2026-06-28T04:54:32Zhttps://docta.ucm.es/rest/oai/request

oai:docta.ucm.es:20.500.14352/592982024-09-09T18:12:49Zcom_20.500.14352_14col_20.500.14352_15

Signal generation mechanisms in scanning-electron acoustic microscopy of ionic crystals Urchulutegui, M. Piqueras De Noriega, Francisco Javier © American Institute of Physics. This work has been supported by the Volkswagen Foundation and by the Comisión Interministerial de Ciencia y Tecnología (Project. No. PB86-0151). The help of Dr. J. Llopis in this work is acknowledged. MgO crystals have been studied by scanning‐electron acoustic microscopy under different experimental conditions. Contrast mechanisms in imaging are discussed and compared. The experimental results obtained by earthing or nonearthing the specimen‐transducer interface suggest the existence of a signal generation mechanism that is related to the ionic nature of these kind of crystals. Electron‐acoustic microscopy appears then to be a useful tool for the characterization of ionic materials. 2023-06-20T19:08:18Z 2023-06-20T19:08:18Z 1990-01-01 journal article 0021-8979 10.1063/1.346087 https://hdl.handle.net/20.500.14352/59298 http://dx.doi.org/10.1063/1.346087 http://scitation.aip.org eng PB86-0151 open access American Institute of Physics