Piezomagnetic switching

Hung-Cheng Wu, Taku J. Sato, and co-workers report the first observation of a finite enhancement of the weak ferromagnetic component in a Cu-based compound under uniaxial stress, providing evidence of the piezomagnetic effect and confirming the magnetic space group determination resolved by neutron diffraction. An intriguing sign change in the piezomagnetic coefficient holds the potential for realizing new functionality in switchable magnetic domains through temperature and pressure manipulation.