Publication

Magnetic and Magnetoelectric Measurements on Ba2CoGe2O7

2016
Student Projects

Abstract

Multiferroic materials show, in a single phase, at least two ferroic properties. The latter are are (anti-)ferroelectricity, (anti-)ferromagnetism or (anti-)ferroelasticity. Interesting applications can use the properties of multiferroics, especially with those presenting magnetic and electric coupling. The ability of controlling a magnetic field with an electric field, using the magnetoelectric coupling, could have interesting applications in spintronics (spin transport electronics), electronic memory devices and sensors. The aim of this project was to familiarize with the use of a cryogenic magnetometer and to perform magnetic and magnetoelectric susceptibility measurements on a sample of Ba2CoGe2O7 . It is a two-dimensional antiferromagnet, in which the magnetoelectric coupling has been discovered in 2008.

Official source

https://infoscience.epfl.ch/entities/publication/53068b49-17c8-4425-9d0d-93dac3f86dc3

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2016
Student Projects

Abstract

Official source

https://infoscience.epfl.ch/entities/publication/53068b49-17c8-4425-9d0d-93dac3f86dc3

About this result

Related concepts (32)

Multiferroics

Multiferroics are defined as materials that exhibit more than one of the primary ferroic properties in the same phase: ferromagnetism – a magnetisation that is switchable by an applied magnetic field ferroelectricity – an electric polarisation that is switchable by an applied electric field ferroelasticity – a deformation that is switchable by an applied stress While ferroelectric ferroelastics and ferromagnetic ferroelastics are formally multiferroics, these days the term is usually used to describe the mag

Magnetic field

A magnetic field is a vector field that describes the magnetic influence on moving electric charges, electric currents, and magnetic materials. A moving charge in a magnetic field experiences a force perpendicular to its own velocity and to the magnetic field. A permanent magnet's magnetic field pulls on ferromagnetic materials such as iron, and attracts or repels other magnets.

Ferromagnetism

Ferromagnetism is a property of certain materials (such as iron) that results in a significant, observable magnetic permeability, and in many cases, a significant magnetic coercivity, allowing the material to form a permanent magnet. Ferromagnetic materials are familiar metals that are noticeably attracted to a magnet, a consequence of their substantial magnetic permeability. Magnetic permeability describes the induced magnetization of a material due to the presence of an external magnetic field.

Related publications (32)

Magnetic and Magnetoelectric Measurements on Ba2CoGe2O7

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