کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1592464 1515636 2013 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Magnetic properties of MgFe6Ge6
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد دانش مواد (عمومی)
پیش نمایش صفحه اول مقاله
Magnetic properties of MgFe6Ge6
چکیده انگلیسی

We investigate the magnetic properties of the HfFe6Ge6-type MgFe6Ge6 compound from DC magnetic measurements, powder neutron diffraction and 57Fe Mössbauer spectroscopy. MgFe6Ge6 magnetically orders at TN=501 K. No metamagnetic transition is detected in fields up to 9 T. The magnetic structure is built upon ferromagnetic (001) Fe planes antiferromagnetically (+ -+-) stacked along the c-axis with the Fe moments pointing along the c-axis. The saturated Fe moment refines to mFe=1.59μB and the hyperfine field at the iron nucleus is found to be H=170 kG at 5 K. Both the low temperature susceptibility data and the 57Fe Mössbauer spectra point to deviations to the ideal easy-axis antiferromagnetic behavior. The results are discussed and compared to previously published data concerning other RFe6Ge6 involving a non-magnetic R.


► First time that the magnetic properties of MgFe6Ge6 are determined.
► First time that the magnetic properties of RFe6Ge6 with divalent R are determined.
► Combined use of susceptibility, Mössbauer and neutron measurements.
► MgFe6Ge6 is an uniaxial antiferromagnet with TN=501 K.
► Slight deviations from the uniaxial antiferromagnetic behavior.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Solid State Communications - Volume 159, April 2013, Pages 79–83
نویسندگان
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