Magnetic transitions and magnetotransport properties of polycrystalline Er1-xGdxMn6Ge6（x=0.2-0.9） compounds were studied.The magnetic and resistivity properties were analyzed in an applied magnetic field up to 5 T.I...Magnetic transitions and magnetotransport properties of polycrystalline Er1-xGdxMn6Ge6（x=0.2-0.9） compounds were studied.The magnetic and resistivity properties were analyzed in an applied magnetic field up to 5 T.It is found that Er1-xGdxMn6Ge6（x=0.2-0.9） compounds displays a transition from the antiferromagnetic state to the ferrimagnetic state for increasing Gd content.The Er1-xGdx Mn6Ge6 with x=0.2 and 0.5 compounds order antiferromagnetically at 430 and 432 K,respectively.The Er1-x GdxMn6Ge6 with x=0.8 and 0.9 compounds order ferrimagnetically at 462 and 471 K,respectively.The Er1-xGdxMn6Ge6 compounds undergo the second transitions below 71 K.The magnetoresistance curves of the Er0.1Gd0.9Mn6Ge6 compound in a field of 5 T are presented and the magnetoresistance effects are related to the metamagnetic transitions.展开更多
基金Funded by the The Hubei Province Key Laboratory of Systems Science in Metallurgical Process (No. C201020)National Natural Science Foundation of China(Nos. 10804089,10805035)
文摘Magnetic transitions and magnetotransport properties of polycrystalline Er1-xGdxMn6Ge6（x=0.2-0.9） compounds were studied.The magnetic and resistivity properties were analyzed in an applied magnetic field up to 5 T.It is found that Er1-xGdxMn6Ge6（x=0.2-0.9） compounds displays a transition from the antiferromagnetic state to the ferrimagnetic state for increasing Gd content.The Er1-xGdx Mn6Ge6 with x=0.2 and 0.5 compounds order antiferromagnetically at 430 and 432 K,respectively.The Er1-x GdxMn6Ge6 with x=0.8 and 0.9 compounds order ferrimagnetically at 462 and 471 K,respectively.The Er1-xGdxMn6Ge6 compounds undergo the second transitions below 71 K.The magnetoresistance curves of the Er0.1Gd0.9Mn6Ge6 compound in a field of 5 T are presented and the magnetoresistance effects are related to the metamagnetic transitions.
