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Preparation method of novel magneto-electric coupling multi-ferroic material BiMn3Cr4O12
The invention discloses a novel magneto-electric coupling multi-ferroic material and a preparation method thereof. A chemical formula of the novel magneto-electric coupling multi-ferroic material is BiMn3Cr4O12. The method for preparing the novel magneto-electric coupling multi-ferroic material BiMn3Cr4O12 comprises the following steps: mixing Bi2O3, Mn2O3 and Cr2O3 of which the purities are more than 99.9% according to a molar ratio of 1:3:4, and then fully grinding and screening; filling screened raw materials into gold capsules or platinum capsules and compacting; and performing solid-phase reaction at high temperature and high pressure. The novel magneto-electric coupling multi-ferroic material BiMn3Cr4O12 disclosed by the invention has weak ferromagnetic spin orders, relatively large dielectric constants and electric dipolar polarization strength as well as relatively high critical temperature, and has good application prospects in the fields of spin electronic devices and multi-state memory devices.
Preparation method of novel magneto-electric coupling multi-ferroic material BiMn3Cr4O12
The invention discloses a novel magneto-electric coupling multi-ferroic material and a preparation method thereof. A chemical formula of the novel magneto-electric coupling multi-ferroic material is BiMn3Cr4O12. The method for preparing the novel magneto-electric coupling multi-ferroic material BiMn3Cr4O12 comprises the following steps: mixing Bi2O3, Mn2O3 and Cr2O3 of which the purities are more than 99.9% according to a molar ratio of 1:3:4, and then fully grinding and screening; filling screened raw materials into gold capsules or platinum capsules and compacting; and performing solid-phase reaction at high temperature and high pressure. The novel magneto-electric coupling multi-ferroic material BiMn3Cr4O12 disclosed by the invention has weak ferromagnetic spin orders, relatively large dielectric constants and electric dipolar polarization strength as well as relatively high critical temperature, and has good application prospects in the fields of spin electronic devices and multi-state memory devices.
Preparation method of novel magneto-electric coupling multi-ferroic material BiMn3Cr4O12
LONG YOUWEN (Autor:in) / ZHOU LONG (Autor:in) / YIN YUNYU (Autor:in)
03.06.2015
Patent
Elektronische Ressource
Englisch
IPC:
C04B
Kalk
,
LIME
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