Plurality of flaky magnetic metal particles, pressed powder material, and rotating electric machine

A plurality of flaky magnetic metal particles, each flaky magnetic metal particle comprising:

• a flat surface;
• and
• a magnetic metal phase containing at least one first element selected from the group consisting of iron (Fe), cobalt (Co), and nickel (Ni), and additive elements,
• wherein the additive elements include boron (B) and hafnium (Hf), the additive elements are included in a total amount of from 0.002 at % to 80 at % with respect to the total amount of the magnetic metal phase, the flaky magnetic metal particles have an average thickness of from 10 nm to 100 μm, an average value of a ratio of an average length in the flat surface with respect to a thickness in each of the flaky magnetic metal particles is from 5 to 10,000, and the flaky magnetic metal particles have a difference in coercivity on a basis of direction within the flat surface.