Tuning of charge density wave strengths by competition between electron-phonon interaction of Pd (super)II -Pd (super)IV mixed-valence states and electron correlation of Ni (super)III states in quasi-one-dimensional bromo-bridged Ni-Pd mixed-metal MX chain compounds Ni (sub)1 -(sub)x Pd (sub)x (chxn) (sub)2 Br (sub)3

Research has been conducted on the quasi-one-dimensional bromo-bridged Ni-Pd compound single crystals. These mixed-metal MX chain compounds obtained by the electrical oxidation methods have been examined.