Mössbauer studies of a series of new compounds RFe2O4 (R = Y, Ho, Er, Tm, Yb)
✍ Scribed by Narayanasamy, A. ;Nagarajan, T. ;Muthukumarasamy, P. ;Kimizuka, N.
- Publisher
- John Wiley and Sons
- Year
- 1981
- Tongue
- English
- Weight
- 423 KB
- Volume
- 66
- Category
- Article
- ISSN
- 0031-8965
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Heat capacity of rare earth cuprates R,Cu,O, (R = Y, Tb-Lu) has been measured in the temperature range from 2.0 to 30 K. Specific heat anomalies corresponding to antiferromagnetic ordering of Cu '\* ions are found. The NCel temperatures vary from TN = 10 K (R = Dy) to TN = 25 K (R = Er). For Yb,Cu,O
The title compounds were synthesized by high pressure/high temperature reactions. TEM revealed the existence of three types of superstructures of the T-structure, which were also observed by powder and single crystal x-ray diffraction. The result of an average structure refinement with the T' unit c