Deutsch
 
Hilfe Datenschutzhinweis Impressum
  DetailsucheBrowse

Datensatz

 
 
DownloadE-Mail
  Efficient Room-Temperature Cooling with Magnets

Boeije, M. F. J., Roy, P., Guillou, F., Yibole, H., Miao, X. F., Caron, L., et al. (2016). Efficient Room-Temperature Cooling with Magnets. Chemistry of Materials, 28(14), 4901-4905. doi:10.1021/acs.chemmater.6b00518.

Item is

Externe Referenzen

einblenden:

Urheber

einblenden:
ausblenden:
 Urheber:
Boeije, M. F. J.1, Autor
Roy, P.1, Autor
Guillou, F.1, Autor
Yibole, H.1, Autor
Miao, X. F.1, Autor
Caron, L.2, Autor           
Banerjee, D.1, Autor
van Dijk, N. H.1, Autor
de Groot, R. A.1, Autor
Bruck, E.1, Autor
Affiliations:
1External Organizations, ou_persistent22              
2Inorganic Chemistry, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863425              

Inhalt

einblenden:
ausblenden:
Schlagwörter: -
 Zusammenfassung: Magnetic cooling is a highly efficient refrigeration technique with the potential to replace the traditional vapor compression cycle. It is based on the magnetocaloric effect, which is associated with the temperature change of a material when placed in a magnetic field. We present experimental evidence for the origin of the giant entropy change found in the most promising materials, in the form of an electronic reconstruction caused by the competition between magnetism and bonding. The effect manifests itself as a redistribution of the electron density, which was measured by X-ray absorption and diffraction on MnFe(P,Si,B). The electronic redistribution is consistent with the formation of a covalent bond, resulting in a large drop in the Fe magnetic moments. The simultaneous change in bond length and strength, magnetism, and electron density provides the basis of the giant magnetocaloric effect. This new understanding of the mechanism of first order magneto-elastic phase transitions provides an essential step for new and improved magnetic refrigerants.

Details

einblenden:
ausblenden:
Sprache(n): eng - English
 Datum: 2016-06-062016-06-06
 Publikationsstatus: Erschienen
 Seiten: -
 Ort, Verlag, Ausgabe: -
 Inhaltsverzeichnis: -
 Art der Begutachtung: -
 Identifikatoren: ISI: 000380576700005
DOI: 10.1021/acs.chemmater.6b00518
 Art des Abschluß: -

Veranstaltung

einblenden:

Entscheidung

einblenden:

Projektinformation

einblenden:

Quelle 1

einblenden:
ausblenden:
Titel: Chemistry of Materials
  Kurztitel : Chem. Mater.
Genre der Quelle: Zeitschrift
 Urheber:
Affiliations:
Ort, Verlag, Ausgabe: Washington, D.C. : American Chemical Society
Seiten: - Band / Heft: 28 (14) Artikelnummer: - Start- / Endseite: 4901 - 4905 Identifikator: ISSN: 0897-4756
CoNE: https://pure.mpg.de/cone/journals/resource/954925561571