Room temperature ferromagnetic semiconductor material MnSiP2 and preparation method and applications thereof
A semiconductor, room temperature technology, applied in the direction of inorganic material magnetism, inductance/transformer/magnet manufacturing, electrical components, etc., can solve the problem of low Curie temperature
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Examples
Embodiment 1
[0015] According to the molar ratio of Mn:Si:P=1:1:2.0, three simple raw materials of Mn, Si and P were weighed respectively, and the raw materials were ground evenly in an agate mortar, put into a quartz tube, and vacuumed 3×10 -4 After Pa, seal and fire the quartz tube. Put the quartz tube into a high-temperature tube furnace, and use staged heating. First, raise the temperature to 450°C at a rate of 30°C / hour, keep the temperature at a constant temperature for 15 hours, continue to heat up to a reaction temperature of 950°C, and react at a constant temperature for 20 hours. Then, after 50 Hours slowly cooled to room temperature. Open the quartz tube, take out the well-crystallized block, clean it with deionized water, and place it in an oven for drying to obtain pure phase MnSiP 2 Magnetic semiconductor materials.
[0016] The MnSiP obtained through high temperature synthesis in this example 2 The powder X-ray diffraction pattern and temperature-varying magnetic suscepti...
Embodiment 2
[0018] According to the molar ratio of Mn:Si:P=1:1:2.3, weigh the three simple raw materials of Mn, Si and P respectively, grind the raw materials evenly in the agate mortar, put them into the quartz tube, and vacuumize 4×10 -4 After Pa, seal and fire the quartz tube. Put the quartz tube into a high-temperature tube furnace, and use a staged temperature rise. First, raise the temperature to 500°C at a rate of 40°C / hour, keep the temperature constant for 20 hours, continue to heat up to the reaction temperature of 1000°C, and react at a constant temperature for 25 hours. Then, after 80 Hours slowly cooled to room temperature. Open the quartz tube, take out the well-crystallized block, clean it with deionized water, and place it in an oven for drying to obtain pure phase MnSiP 2 Magnetic semiconductor materials.
Embodiment 3
[0020] According to the molar ratio of Mn:Si:P=1:1:2.5, three simple raw materials of Mn, Si and P were weighed respectively, and the raw materials were ground evenly in an agate mortar, put into a quartz tube, and vacuumed 5×10 -4 After Pa, seal and fire the quartz tube. Put the quartz tube into a high-temperature tube furnace, and adopt a staged temperature rise. First, raise the temperature to 480°C at a rate of 50°C / hour, keep the temperature for 18 hours, continue to heat up to the reaction temperature of 1050°C, and react at a constant temperature for 30 hours. Then, after 100 Hours slowly cooled to room temperature. Open the quartz tube, take out the well-crystallized block, clean it with deionized water, and place it in an oven for drying to obtain pure phase MnSiP 2 Magnetic semiconductor materials.
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Abstract
Description
Claims
Application Information
- IPC
- H01F1/40; H01F41/02
- CPC
- H01F1/40; H01F41/02
- Inventors
- 王善朋; 陶绪堂