Magnetocaloric effects in Er1-xTbxAl2 alloys
| Title | Magnetocaloric effects in Er1-xTbxAl2 alloys |
| Publication Type | Journal Article |
| Year of Publication | 2010 |
| Authors | Khan M, Gschneidner KA, Pecharsky VK |
| Journal Title | Journal of Applied Physics |
| Volume | 107 |
| Pages | 09a904 |
| Date Published | 05/01 |
| ISBN Number | 0021-8979 |
| Accession Number | ISI:000277834300109 |
| Abstract | The magnetocaloric properties of the (Er1-xTbx)Al-2 alloys have been evaluated by magnetization and heat capacity measurements. It is shown that by partial substitution of Er by Tb the ferromagnetic ordering temperature of (Er1-xTbx)Al-2 can be tuned over a wide range of temperatures, that is from 13 K (ErAl2) to 110 K (TbAl2). Over the entire temperature range the alloy system exhibits large magnetocaloric effect. For a field change of 5 T, the observed magnetic entropy changes peaks from -18 J/kg K (x=0.20) to -12 J/kg K (x=0.90). The adiabatic temperature changes measured for selected alloys in the series show a maximum value of 6 K when the magnetic field is changed from 0 to 5 T. (C) 2010 American Institute of Physics. [doi: 10.1063/1.3335590] |
| URL | <Go to ISI>://000277834300109 |
| DOI | 10.1063/1.3335590 |
