Strong Magnetic Fields Reveal a Hidden Duality in Quantum Materials
Credit: Pixabay / CC0 Public Domain In the quest to understand the fundamental nature of matter, physicists have long been fascinated by phenomena that blur the lines between established categories — between wave and particle, conductor and insulator, order and chaos. A new study led by Lu Li and his team at the University of Michigan pushes these boundaries even further. Working in collaboration with scientists from Japan and the United States, they have uncovered experimental evidence of an extraordinary behavior in a material that appears to act as both a metal and an insulator under extreme magnetic conditions. The Enigmatic Quantum Oscillations At the heart of this discovery lie quantum oscillations — rhythmic variations that occur in the properties of electrons within a material when it is placed in a strong magnetic field. In ordinary metals, these oscillations are well understood; they arise from the collective motion of electrons behaving like vibrating spr...