The memory isn't false. The material exists, it was used in a speaker manufactured in the thirties or forties. ElectroVoice mentions it in an advertisement. The magnetic conductivity of the material had to be greater than one or the magnetic flux lines would have been at the wrong angle to the...
In the 1950's while disassembling speakers from old radios I came across one pole piece that was not attracted to the magnet but concentrated magnetic flux. Recently while searching for the alloy I have been informed the memory must be false because magnetic conductivity depends on the material...
