Abstract Magnetic properties and magnetocaloric effect in TbCo$_{2 - x}$Fe$_{x}$ compounds are studied by DC magnetic measurement. With increasing content of Fe, the entropy changes decrease slightly, though the Curie temperature is tuned from 231 K ($x=0$) to 303 K ($x=0.1$). Magnetic entropies of TbCo$_{2}$ compound are calculated by using mean field approximation (MFA). Results estimated by using Maxwell relation are consistent with that of MFA calculation. It is shown that the entropy changes are mainly derived from the magnetic entropy changes. The lattice has almost no contribution to the entropy change in the vicinity of phase transition.
(Magnetization curves, hysteresis, Barkhausen and related effects)
Fund: Project supported by the National Natural Science Foundation of China
(Grant No~50571112) and the National Basic Research Program of China (Grant
No~2006CB601101).
Cite this article:
Zou Jun-Ding(邹君鼎), Shen Bao-Gen(沈保根), and Sun Ji-Rong(孙继荣) Magnetic properties and magnetocaloric effect in TbCo2-xFex compounds 2007 Chinese Physics 16 3843
Altmetric calculates a score based on the online attention an article receives. Each coloured thread in the circle represents a different type of online attention. The number in the centre is the Altmetric score. Social media and mainstream news media are the main sources that calculate the score. Reference managers such as Mendeley are also tracked but do not contribute to the score. Older articles often score higher because they have had more time to get noticed. To account for this, Altmetric has included the context data for other articles of a similar age.