首页 | 本学科首页   官方微博 | 高级检索  
     检索      


The Orientational Order of a Re-entrant Nematic Phase. an Electron Resonance Investigation
Authors:G R Luckhurst  K J Smith  B A Timimi
Institution:Department of Chemistry , The University , Southampton, S09 5NH, England
Abstract:We have investigated the orientational order in a re-entrant nematic and its preceding phases using steroidal and alkyl nitroxide spin probes. The order parameter for the steroidal spin probe in the re-entrant nematic phase is found to be an extension of its value in the preceding smectic A phase. In contrast the gradient of the order parameter for the alkyl spin probe exhibits a marked discontinuity at the smectic A - re-entrant nematic transition.
Keywords:
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号