AUTHOR=Wei Zhangzhi , Zhang Xin TITLE=Chaos in the Shimizu-Morioka Model With Fractional Order JOURNAL=Frontiers in Physics VOLUME=Volume 9 - 2021 YEAR=2021 URL=https://www.frontiersin.org/journals/physics/articles/10.3389/fphy.2021.636173 DOI=10.3389/fphy.2021.636173 ISSN=2296-424X ABSTRACT=The investigation of dynamical behaviours for fractional order chaotic systems is a new trend recently. This paper is numerically concerned with a Shimizu- Morioka Model with fractional order. We find that chaos exists in the fractional order model with order less than 3 by utilizing the fractional calculus techniques, some phase diagrams are constructed also.