Iron nitride powder with anisotropic shape

A material comprising:

• an anisotropic particle comprising at least one iron nitride crystal,
• wherein the anisotropic particle has an aspect ratio of at least 2.2,
• wherein the aspect ratio comprises the ratio of the length of a longest dimension of the anisotropic particle to the length of a shortest dimension of the anisotropic particle, and
• wherein the longest dimension and the shortest dimension are substantially orthogonal,
• wherein the at least one iron nitride crystal's magnetic easy axis is substantially parallel to the longest dimension of the anisotropic particle;
• wherein the at least one iron nitride crystal comprises a plurality of iron nitride crystals, and wherein the respective <001> crystal axes of the plurality of iron nitride crystals are substantially parallel;
• wherein the length of the anisotropic particle measured in the direction of the substantially parallel <001> crystal axes of the plurality of iron nitride crystals is at least about 2.2 times the length of the anisotropic particle measured in at least one of a substantially orthogonal direction of the <100> crystal axes of the plurality of iron nitride crystals of the anisotropic particle or a substantially orthogonal direction of the <010> crystal axes of the plurality of iron nitride crystals of the anisotropic particle;
• wherein the length of the anisotropic particle measured in the direction of the substantially parallel <001> crystal axes is about 1 micron (μm) and the length of the anisotropic particle measured in the direction of at least one of the substantially parallel <100> crystal axes or the substantially parallel <010> crystal axes is between about 200 nanometers (nm) and 500 nm.