Answer:
No, it isn't scientifically proven or seemingly physically possible or existentially possible.
Step-by-step explanation:
Though it has been predicted to exist, (a term known as "magnetic monopoles - hypothetical elementary particles with only one magnetic pole") have not been determined or discovered to be existent by scientists. It is a common philosophy plain as night and day that every magnet has a north and a south pole. The pieces will still have a north and south pole, if you are to break a magnet in half.
I hope this is helpful!