Magnetic phase diagram of Al-doped spinel MnV2O4

► Doping effect of the V3+ ions by Al3+ ions in MnV2O4 is systematically studied. ► The orbital order of V3+ ions is gradually broken by orbital quenched Al3+ ions. ► Construct a magnetic phase diagram for different Al-doped MnV2O4. ► The doping of Al3+ ions increases the difficulty of electron hopping.