Angle-dependent electronic properties of TiZn16 under low temperatures and high magnetic field*

Titanium and Zinc forms a family of crystals that range from Ti_2­Zn to TiZn₁₆. Although the synthesis and physical properties of these crystals have been documented, their electronic properties have not been mapped in detail. Here, we explore the electronic structure of TiZn₁₆, the most Zinc heavy member. Under a strong magnetic field at cryogenic temperatures, we make three observations. First, TiZn₁₆ behaves as a conductor when the magnetic field is parallel to the applied current, but transitions to an insulator when the magnetic field is rotated to perpendicular to the applied current. Second, quantum oscillations persist through this transition, existing even when the material is in an insulating state. Third, the resistance oscillates as the angle between the magnetic field and applied current, implying some symmetry enhanced by the magnetic field.