Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Preparation method of novel magneto-electric coupling multi-ferroic material BiMn3Cr4O12

A magnetoelectric coupling, multiferroic technology, applied in the field of materials science, can solve the problems of limited and restricted novelty effect research and application, achieve high critical temperature, good application prospects, large dielectric constant and electric polarization strength Effect

Active Publication Date: 2015-06-03
INST OF PHYSICS - CHINESE ACAD OF SCI
View PDF3 Cites 5 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the material system with magnetoelectric coupling multiferroic effect is still very limited, which greatly restricts the research and application of this novel effect

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Preparation method of novel magneto-electric coupling multi-ferroic material BiMn3Cr4O12
  • Preparation method of novel magneto-electric coupling multi-ferroic material BiMn3Cr4O12
  • Preparation method of novel magneto-electric coupling multi-ferroic material BiMn3Cr4O12

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Bi with a purity higher than 99.9% 2 o 3 , Mn 2 o 3 and Cr 2 o 3 After fully grinding at a molar ratio of 1:3:4, pass through a 200-mesh sieve; put the screened raw materials into gold or platinum capsules and compact them, wherein the gold or platinum capsules have a diameter of 10 mm and a length of 10 mm. The wall thickness is 2mm; the gold or platinum capsule is placed in a six-sided top press or a 6-8 type two-stage pusher press, and the pressure is set at 8GPa and the temperature is 1050°C, so that the raw materials in the gold or platinum capsule are under high temperature and high pressure. The reaction time was 30 minutes.

[0027] figure 1 The novel magnetoelectric coupling multiferroic material BiMn prepared by embodiment 1 is shown 3 Cr 4 o 12 The XRD pattern. Via a novel magnetoelectrically coupled multiferroic material BiMn 3 Cr 4 o 12 The XRD pattern of the prepared BiMn can be obtained 3 Cr 4 o 12 It belongs to the A-site ordered cubic do...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

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.

Description

technical field [0001] The invention relates to the field of material science, in particular to a novel magnetoelectric coupling multiferroic material BiMn 3 Cr 4 o 12 method of preparation. Background technique [0002] Magnetoelectric coupling multiferroic materials (Magnetoelectric coupling multiferroics) refer to compounds that have both ferroelectricity and long-range magnetic ordering, and ferroelectricity and magnetic ordering have a strong coupling effect. This type of material can realize the mutual regulation of electricity and magnetism, such as regulating the electric polarization state through the magnetic field, and regulating the magnetization state through the electric field. Therefore, the magnetoelectrically coupled multiferroic material is a new type of multifunctional material. Storage, electromagnetic sensors and other fields have broad application prospects. [0003] In transition metal oxides, electric polarization does not require the participatio...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): C04B35/12C04B35/622
Inventor 龙有文周龙殷云宇
Owner INST OF PHYSICS - CHINESE ACAD OF SCI
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com