Magnetic lauer compositions for use in a device for determining the position of an axially movable body

A device for determining a position of an axially movable body, comprising:

• a coil arrangement coaxially arranged around said body, said coil arrangement having an inductance from which said position of the body is deduced;
• a layer having magnetic properties which modify the inductance of the coil arrangement, said layer being deposited on said body by atomic growth in a region electrically interacting with said coil arrangement as said body moves;
• wherein an axial movement of said body, to which said layer is joined, modifies a magnetic flux in said coil arrangement comprising at least one coil, and the resulting change in the inductance therefrom is measured in order to allow for the determination of the position of the body;
• and
• wherein said magnetic properties of said layer are obtained by a layer composition comprising less than 8% by weight of phosphorous, up to 2% by weight of an element from one of main groups IV and V of the Periodic Table, and up to 5% by weight of a transition metal element, the percentages by weight resulting from the sum being increased up to 100% with nickel.