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Magnetic and Magnetothermal Properties of Hydrogenated Materials Based on Rare Earths and Iron

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F26722445%3A_____%2F19%3AN0000057" target="_blank" >RIV/26722445:_____/19:N0000057 - isvavai.cz</a>

  • Alternative codes found

    RIV/00216208:11320/19:10402236

  • Result on the web

    <a href="https://ieeexplore.ieee.org/document/8890915" target="_blank" >https://ieeexplore.ieee.org/document/8890915</a>

  • DOI - Digital Object Identifier

    <a href="http://dx.doi.org/10.1109/LMAG.2019.2951341" target="_blank" >10.1109/LMAG.2019.2951341</a>

Alternative languages

  • Result language

    angličtina

  • Original language name

    Magnetic and Magnetothermal Properties of Hydrogenated Materials Based on Rare Earths and Iron

  • Original language description

    Iron-rich rare-earth compounds are the basis for high-energy permanent magnets. These include the R(Fe,T)(12), R2Fe17, and R2Fe14B intermetallics (R rare earth; T Ti, V, Mo, Si) that readily absorb hydrogen, which changes their fundamental and functional characteristics. In this letter, we investigate the stability of the magnetic properties of some hydrides with maximum hydrogen content (namely, TmFe11TiH1 and Tm2Fe17H5.5) in a wide temperature range using high magnetic fields. The magnetic phase transition from the ferrimagnetic to the ferromagnetic state was studied immediately after hydrides were obtained, as well as after one year of storage of the samples at ambient temperature. Only the TmFe11TiH hydride is stable over time. The effect of hydrogen on the magnetothermal properties of the Nd2Fe14B and Nd1Pr1Fe14B compounds and a range of magnetic phase transitions were also investigated. Hydrogenation leads to a decrease in the magnetocaloric effect in all investigated compounds as a result of an increase in the distance between magnetically active ions due to the lattice expansion. A magnetic phase diagram is constructed.

  • Czech name

  • Czech description

Classification

  • Type

    J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database

  • CEP classification

  • OECD FORD branch

    20201 - Electrical and electronic engineering

Result continuities

  • Project

    Result was created during the realization of more than one project. More information in the Projects tab.

  • Continuities

    P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Others

  • Publication year

    2019

  • Confidentiality

    S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Data specific for result type

  • Name of the periodical

    IEEE Magnetics Letters

  • ISSN

    1949-307X

  • e-ISSN

    1949-3088

  • Volume of the periodical

    10

  • Issue of the periodical within the volume

    November

  • Country of publishing house

    US - UNITED STATES

  • Number of pages

    7

  • Pages from-to

    1-7

  • UT code for WoS article

    000502726400001

  • EID of the result in the Scopus database

    2-s2.0-85075510496