The new ternary silicide Gd<sub>5</sub>CoSi<sub>2</sub>: Structural, magnetic and magnetocaloric properties
| hal.structure.identifier | Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB] | |
| dc.contributor.author | MAYER, Charlotte | |
| hal.structure.identifier | Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB] | |
| dc.contributor.author | GAUDIN, Etienne | |
| hal.structure.identifier | Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB] | |
| dc.contributor.author | GORSSE, Stéphane | |
| hal.structure.identifier | Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB] | |
| dc.contributor.author | CHEVALIER, Bernard | |
| dc.date.issued | 2011 | |
| dc.identifier.issn | 0022-4596 | |
| dc.description.abstractEn | Gd<sub>5</sub>CoSi<sub>2</sub> was prepared by annealing at 1003 K. Its investigation by the X-ray powder diffraction shows that the ternary silicide crystallizes in a tetragonal structure deriving from the Cr<sub>5</sub>B<sub>3</sub>-type (<i>I</i>4/<i>mcm</i> space group; <i>a</i>=7.5799(4) and <i>c</i>=13.5091(12) Å as unit cell parameters). The Rietveld refinement shows a mixed occupancy on the (8<i>h</i>) site between Si and Co atoms. Magnetization and specific heat measurements performed on Gd<sub>5</sub>CoSi<sub>2</sub> reveal a ferromagnetic behaviour below <i>T</i><sub><i>C</i></sub>=168 K. This magnetic ordering is associated to an interesting magnetocaloric effect; the adiabatic temperature change Δ<i>T</i><sub><i>ad</i></sub> is about 3.1 and 5.9 K, respectively, for a magnetic field change of 2 and 4.6 T. | |
| dc.language.iso | en | |
| dc.publisher | Elsevier | |
| dc.title.en | The new ternary silicide Gd<sub>5</sub>CoSi<sub>2</sub>: Structural, magnetic and magnetocaloric properties | |
| dc.type | Article de revue | |
| dc.identifier.doi | 10.1016/j.jssc.2010.11.023 | |
| dc.subject.hal | Chimie/Matériaux | |
| bordeaux.journal | Journal of Solid State Chemistry | |
| bordeaux.page | 325-330 | |
| bordeaux.volume | 184 | |
| bordeaux.issue | 2 | |
| bordeaux.peerReviewed | oui | |
| hal.identifier | hal-00565319 | |
| hal.version | 1 | |
| hal.popular | non | |
| hal.audience | Internationale | |
| hal.origin.link | https://hal.archives-ouvertes.fr//hal-00565319v1 | |
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