English
 
User Manual Privacy Policy Disclaimer Contact us
  Advanced SearchBrowse

Item

ITEM ACTIONSEXPORT
  A New Highly Anisotropic Rh-Based Heusler Compound for Magnetic Recording

He, Y., Fecher, G. H., Fu, C., Pan, Y., Manna, K., Kroder, J., et al. (2020). A New Highly Anisotropic Rh-Based Heusler Compound for Magnetic Recording. Advanced Materials, 2004331, pp. 1-8. doi:10.1002/adma.202004331.

Item is

Basic

show hide
Item Permalink: http://hdl.handle.net/21.11116/0000-0007-442E-A Version Permalink: http://hdl.handle.net/21.11116/0000-0007-4430-6
Genre: Journal Article

Files

show Files

Locators

show

Creators

show
hide
 Creators:
He, Yangkun1, Author              
Fecher, Gerhard H.2, Author              
Fu, Chenguang1, Author              
Pan, Yu1, Author              
Manna, Kaustuv1, Author              
Kroder, Johannes1, Author              
Jha, Ajay3, Author
Wang, Xiao4, Author              
Hu, Zhiwei5, Author              
Agrestini, Stefano3, Author
Herrero-Martín, Javier3, Author
Valvidares, Manuel3, Author
Skourski, Yurii3, Author
Schnelle, Walter6, Author              
Stamenov, Plamen3, Author
Borrmann, Horst7, Author              
Tjeng, Liu Hao8, Author              
Schaefer, Rudolf3, Author
Parkin, Stuart S. P.3, Author
Coey, John Michael D.3, Author
Felser, Claudia9, Author               more..
Affiliations:
1Inorganic Chemistry, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863425              
2Gerhard Fecher, Inorganic Chemistry, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863431              
3External Organizations, ou_persistent22              
4Physics of Correlated Matter, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863445              
5Zhiwei Hu, Physics of Correlated Matter, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863461              
6Walter Schnelle, Inorganic Chemistry, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863441              
7Horst Borrmann, Chemical Metal Science, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863410              
8Liu Hao Tjeng, Physics of Correlated Matter, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863452              
9Claudia Felser, Inorganic Chemistry, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863429              

Content

show
hide
Free keywords: -
 Abstract: The development of high-density magnetic recording media is limited by superparamagnetism in very small ferromagnetic crystals. Hard magnetic materials with strong perpendicular anisotropy offer stability and high recording density. To overcome the difficulty of writing media with a large coercivity, heat-assisted magnetic recording was developed, rapidly heating the media to the Curie temperature Tc before writing, followed by rapid cooling. Requirements are a suitable Tc, coupled with anisotropic thermal conductivity and hard magnetic properties. Here, Rh2CoSb is introduced as a new hard magnet with potential for thin-film magnetic recording. A magnetocrystalline anisotropy of 3.6 MJ m−3 is combined with a saturation magnetization of μ0Ms = 0.52 T at 2 K (2.2 MJ m−3 and 0.44 T at room temperature). The magnetic hardness parameter of 3.7 at room temperature is the highest observed for any rare-earth-free hard magnet. The anisotropy is related to an unquenched orbital moment of 0.42 μB on Co, which is hybridized with neighboring Rh atoms with a large spin–orbit interaction. Moreover, the pronounced temperature dependence of the anisotropy that follows from its Tc of 450 K, together with a thermal conductivity of 20 W m−1 K−1, make Rh2CoSb a candidate for the development of heat-assisted writing with a recording density in excess of 10 Tb in.−2. © 2020 The Authors. Published by Wiley-VCH GmbH

Details

show
hide
Language(s): eng - English
 Dates: 2020-10-152020-10-15
 Publication Status: Published in print
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Type: -
 Identifiers: DOI: 10.1002/adma.202004331
 Degree: -

Event

show

Legal Case

show

Project information

show

Source 1

show
hide
Title: Advanced Materials
  Other : Adv. Mater.
Source Genre: Journal
 Creator(s):
Affiliations:
Publ. Info: Weinheim : Wiley-VCH
Pages: - Volume / Issue: - Sequence Number: 2004331 Start / End Page: 1 - 8 Identifier: ISSN: 0935-9648
CoNE: https://pure.mpg.de/cone/journals/resource/954925570855