Molecule Mixed Magnetic Material

A molecule mixed magnetic material having at least a kind of a magnetic ion unit of a molecular magnetic material showing ferromagnetism and at least 1 kind of a magnetic ion unit of a molecular magnetic material showing ferrimagnetism for controlling the magnetic characteristics of the molecular magnetic materials, wherein the magnetic characteristics are changeable by controlling the existing ratio of both the magnetic ion units or the magnetic characteristics are changeable by the change of temperature or by the irradiation of light.

1. A molecule mixed magnetic material having at least 1 kind of a magnetic ion unit of a molecular magnetic material showing ferromagnetism and at least 1 kind of a magnetic ion unit of molecular magnetic material showing ferrimagnetism, characterized in that the magnetic characteristics are changeable by controlling the existing ratio of both the ion units.
2. A molecule mixed magnetic material having at least 1 kind of a magnetic ion unit of a molecular magnetic material showing ferromagnetism and at least 1 kind of a magnetic ion unit of molecular magnetic material showing ferrimagnetism, characterized in that the magnetic characteristics are changeable by the change of a temperature.
3. A molecule mixed magnetic material having at least 1 kind of a magnetic ion unit of a molecular magnetic material showing ferromagnetism and at least 1 kind of a magnetic ion unit of molecular magnetic material showing ferrimagnetism, characterized in that the magnetic characteristics are changeable by the irradiation of light.
4. A molecule mixed magnetic material of claim 1 wherein the magnetic material is changeable to a ferromagnetic substance and an antiferromagnetic substance.
5. A molecule mixed magnetic material of claim 1 wherein the magnetic characteristics such as the saturation magnetization, the coercive force, the residual magnetization, the magnetic phase transition point, etc., are changeable.
6. A molecule mixed magnetic material of claim 1 wherein the magnetic ion unit is made up of a complex of a polynary metal which is a transition metal.
7. A molecule mixed magnetic material of claim 6 wherein at least the magnetic ion unit has M1¡ªB¡ªM2 (wherein M1, M2, and B each represents a magnetic ion and the exchange interaction (J) between each of M1 and M2 and B is J>O and J<O respectively to B) and the existing ratio of the magnetic ions M1 and M2 is controlled.
8. A molecule mixed magnetic material of claim 1 wherein the magnetic pole is invertible.

To solve the theme described above, an aspect of the present invention provides a molecule mixed magnetic material having at least one kind of magnetic ion unit of a molecular magnetic material showing ferromagnetism and at least one kind of a magnetic ion unit of a molecular magnetic material showing ferrimagnetism, wherein the magnetic characteristics are changeable by controlling the existing ratio of both the ion units and also another aspect of the present invention provides the above-described molecule mixed magnetic material, wherein the magnetic characteristics are changeable by the change of a temperature or by the irradiation of light.

Also, still, another aspect of the present invention provides a molecule mixed magnetic material which is changeable to a ferromagnetic substance or an antiferromagnetic substance, furthermore, another aspect of the present invention provides the molecule mixed magnetic material wherein the magnetic characteristics such as the saturation magnetization, the coercive force, the residual magnetization, the magnetic phase transition point, etc., are changeable, also still another aspect of the present invention provides the molecule mixed magnetic material wherein the magnetic ion units are made up of transition metals, and moreover, other aspects of the present invention provide the molecule mixed magnetic material wherein the magnetic material has