Orbital- and spin-driven lattice instabilities in quasi-one-dimensional CaV${}_2$O${}_4$

T. Watanabe, S. Kobayashi, Y. Hara +5

Calcium vanadate CaV${}_2$O${}_4$ has a crystal structure of quasi-one-dimensional zigzag chains composed of orbital-active V${}^{3+}$ ions and undergoes successive structural and antife…