Towards rare-earth-free permanent magnets: exchange bias in binary Mn-based alloys.

Quantum-mechanical exchange interactions between phases in ferromagnetic/antiferromagnetic (FM/AF) magnetic nanocomposite systems can result in useful effects such as exchange bias (Hex) and remanence enhancement. These effects are more pronounced in nanostructured systems than in their coarse-grain...

Full description

Bibliographic Details
Published:
Online Access:http://hdl.handle.net/2047/d20003080
id ndltd-NEU--neu-674
record_format oai_dc
spelling ndltd-NEU--neu-6742021-05-26T05:10:27ZTowards rare-earth-free permanent magnets: exchange bias in binary Mn-based alloys.Quantum-mechanical exchange interactions between phases in ferromagnetic/antiferromagnetic (FM/AF) magnetic nanocomposite systems can result in useful effects such as exchange bias (Hex) and remanence enhancement. These effects are more pronounced in nanostructured systems than in their coarse-grained counterparts due to improved interphase contact and can be developed to create good permanent magnetic behavior, but are currently poorly understood in bulk three-dimensional systems. To achieve this goal, factors such as the magnetic and structural phase identity, chemistry, size, shape, and character are investigated. To this end, synthesis, characterization and analysis of the magnetic and structural properties of nanocomposites are carried out on MnX (X = Cu, Al) alloys comprised of nanostructured FM and AF phases. It is recommended for future work that Fe be added to augment the FM response of the nanostructured MnX alloys.http://hdl.handle.net/2047/d20003080
collection NDLTD
sources NDLTD
description Quantum-mechanical exchange interactions between phases in ferromagnetic/antiferromagnetic (FM/AF) magnetic nanocomposite systems can result in useful effects such as exchange bias (Hex) and remanence enhancement. These effects are more pronounced in nanostructured systems than in their coarse-grained counterparts due to improved interphase contact and can be developed to create good permanent magnetic behavior, but are currently poorly understood in bulk three-dimensional systems. To achieve this goal, factors such as the magnetic and structural phase identity, chemistry, size, shape, and character are investigated. To this end, synthesis, characterization and analysis of the magnetic and structural properties of nanocomposites are carried out on MnX (X = Cu, Al) alloys comprised of nanostructured FM and AF phases. It is recommended for future work that Fe be added to augment the FM response of the nanostructured MnX alloys.
title Towards rare-earth-free permanent magnets: exchange bias in binary Mn-based alloys.
spellingShingle Towards rare-earth-free permanent magnets: exchange bias in binary Mn-based alloys.
title_short Towards rare-earth-free permanent magnets: exchange bias in binary Mn-based alloys.
title_full Towards rare-earth-free permanent magnets: exchange bias in binary Mn-based alloys.
title_fullStr Towards rare-earth-free permanent magnets: exchange bias in binary Mn-based alloys.
title_full_unstemmed Towards rare-earth-free permanent magnets: exchange bias in binary Mn-based alloys.
title_sort towards rare-earth-free permanent magnets: exchange bias in binary mn-based alloys.
publishDate
url http://hdl.handle.net/2047/d20003080
_version_ 1719406383511633920