Hi, I'm new to the forum, and I'm looking for input. I'm looking for a material that when it comes under pressure or is deformed, develops a magnetic or other resistant force that is released when the pressure is released and it is allowed to return to its original state. This could be on a nano- or molecular level as well as a larger material. I know that certain materials have a piezoelectric effect when under pressure, I'm looking for something that has a magnetic effect when under pressure or when the structure is bent under force. I appreciate any input from the board.