Structural origin of negative thermal expansion in ScF3

Scandium fluoride has recently been identified as a very simple example of a material showing negative thermal expansion over a wide range of temperatures. In particular, it...氟化钪(Scandium fluoride) 近期被确定为一类极为简洁的材料范例，可在宽泛温度区间内表现出负热膨胀(negative thermal expansion)特性。具体而言，其……