Windows open for highly tunable magnetostructural phase transitions
  An attempt was made to tailor the magnetostructural transitions (MSTs) over a wide temperature range under the principle of isostructural alloying. A series of wide Curie-temperature windows (CTWs) with a maximal width of 377 K between 69 and 446 K were established in the Mn1-yCoyNiGe1-xSix system. Throughout the CTWs, the magnetic-field-induced metamagnetic behavior and giant magnetocaloric effects are obtained. The (Mn,Co)Ni(Ge,Si) system shows great potential as multifunctional phase-transition materials that work in a wide range covering liquid-nitrogen and above water-boiling temperatures. Moreover, general understanding to isostructural alloying and CTWs constructed in (Mn,Co)Ni(Ge,Si) as well as (Mn,Fe)Ni(Ge,Si) are provided. 
Y. Li, Z. Y. Wei, H. G. Zhang, E. K. Liu, H. Z. Luo, G. D. Liu, X. K.   Xi, S. G. Wang, W. H. Wang, M. Yue, G. H. Wu, and X....
cond-mat.mtrl-sci