Magnetic device and lithographic apparatus

A magnetic device, comprising:

• a first part;
• a second part;
• a first magnetic part coupled to the first part and having a first magnetic polarization;
• a second magnetic part coupled to the second part and having a second magnetic polarization;
• and
• an additional magnetic part coupled to the first part and having an additional magnetic polarization;
• wherein:
• the first magnetic part and the second magnetic part are configured to magnetically interact with each other, wherein:
• the first magnetic part exerts a first force on the second magnetic part;
• the second magnetic part exerts a second force on the first magnetic part;
• and
• the first force and the second force have opposite directions that are parallel to a reference direction;
• the first magnetic polarization is substantially parallel to the reference direction;
• the second magnetic polarization is substantially perpendicular to the reference direction;
• the additional magnetic polarization makes an angle with the first magnetic polarization;
• and
• wherein the angle has a magnitude of about 180°.