metal magnetic particles, the metal magnetic particles comprising:

an oxide layer formed on a surface of an alloy particle containing Fe and Si, the oxide layer including a first oxide layer, a second oxide layer, and a third oxide layer, the first oxide layer is formed directly on the alloy particle, the second oxide layer formed over the first oxide layer, and the third oxide layer formed over the second oxide layer, and

wherein

in line analysis of element content by using a scanning transmission electron microscope-energy dispersive X-ray spectroscopy,

the first oxide layer is a layer in which Si content takes a local maximum value, and the first oxide layer contains Fe and Si,

the second oxide layer is a layer in which Fe content takes a local maximum value,

the amount of Fe in the second oxide layer is greater than the amount of Si in the second oxide layer,

the third oxide layer is a layer in which Si content takes a local maximum value, and

the metal magnetic particles are joined to each other with the oxide layer to form the metal magnetic core.