کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1592901 | 1002678 | 2011 | 4 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: The magnetic phase transitions and magnetocaloric effect in MnNi1−xCoxGe alloys The magnetic phase transitions and magnetocaloric effect in MnNi1−xCoxGe alloys](/preview/png/1592901.png)
The magnetic phase transitions and the magnetocaloric effects in MnNi1−xCoxGe (x=0.38x=0.38 and 0.40) alloys were investigated. The substitution of Co for Ni in the MnNiGe antiferromagnet results in the metamagnetic transitions from antiferromagnetic to ferromagnetic state, which associates with very small thermal and magnetic hystereses. Positive and negative values of magnetic entropy changes are exhibited around the metamagnetic transition temperature and Curie temperature, respectively. The relatively large refrigerant capacity in low magnetic field along with the good reversibility suggest that MnNi1−xCoxGe (x=0.38x=0.38 and 0.40) alloys are potential candidates for magnetic refrigeration.
► Metamagnetic transitions in MnNi1−xCoxGe (x=0.38x=0.38 and 0.40) alloys.
► Very low thermal and magnetic hystereses.
► Relatively large refrigerant capacity in low magnetic field.
Journal: Solid State Communications - Volume 151, Issue 19, October 2011, Pages 1359–1362