@ARTICLE{10.3389/fchem.2018.00438, AUTHOR={Hu, Fengxia and Shen, Feiran and Hao, Jiazheng and Liu, Yao and Wang, Jing and Sun, Jirong and Shen, Baogen}, TITLE={Negative Thermal Expansion in the Materials With Giant Magnetocaloric Effect}, JOURNAL={Frontiers in Chemistry}, VOLUME={6}, YEAR={2018}, URL={https://www.frontiersin.org/articles/10.3389/fchem.2018.00438}, DOI={10.3389/fchem.2018.00438}, ISSN={2296-2646}, ABSTRACT={Negative thermal expansion (NTE) behaviors in the materials with giant magnetocaloric effects (MCE) have been reviewed. Attentions are mainly focused on the hexagonal Ni2In-type MM'X compounds. Other MCE materials, such as La(Fe,Si)13, RCo2, and antiperovskite compounds are also simply introduced. The novel MCE and phase-transition-type NTE materials have similar physics origin though the applications are distinct. Spin-lattice coupling plays a key role for the both effect of NTE and giant MCE. Most of the giant MCE materials show abnormal lattice expansion owing to magnetic interactions, which provides a natural platform for exploring NTE materials. We anticipate that the present review can help finding more ways to regulate phase transition and dig novel NTE materials.} }