Abstract
Magnetocaloric effect has been studied for antiferromagnetic single crystalline DySb, by measuring the temperature (T) and magnetic field (H) dependences of magnetization in the range 2≤T≤300K and 0≤H≤7T with field along the [100] and the [110] direction. The magnetic entropy change caused by a field change of 5 T is as larger as -36.4 J kg-1 K -1 for H//[110] around 11 K, which is a value much greater than that reported for the polycrystalline sample. The magnetocaloric effect is further found to be anisotropic. Above TN (=10 K), the entropy change is much larger for H//[110] than for H//[100]. In contrast, the entropy change is positive below TN, and it is significantly lower for H//[110] than for H//[100]. Our results indicate that DySb is a typical material possessing giant and highly anisotropic magnetocaloric effect, and suggest that magnetic orientation could be used to enhance magnetic entropy change.
Original language | English |
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Pages (from-to) | 1865-1868 |
Number of pages | 4 |
Journal | Solid State Communications |
Volume | 150 |
Issue number | 39-40 |
DOIs | |
Publication status | Published - 2010 Oct 1 |
Keywords
- A. Magnetically ordered materials
- D. Phase transitions
- D. Thermodynamic properties
ASJC Scopus subject areas
- Chemistry(all)
- Condensed Matter Physics
- Materials Chemistry