Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1819505 | Physica C: Superconductivity and its Applications | 2008 | 4 Pages |
Abstract
Ho-based 1212 niobio-cuprate (Nb-1212Ho) was synthesized for the first time. An off-stoichiometric starting composition Nb0.9Sr2HoCu2.1O7.9 led a phase-pure polycrystalline sample under the synthesis condition at 1450 °C for 2 h at 6 GPa, approximating the true bulk composition. X-ray diffraction pattern clearly indicated an Nb-1212 type structure for the compound with lattice parameters a = b = 3.8505(1) Ã
and c = 11.574(3) Ã
, suggesting that the space group P4/mmm is likely for the structure. Unlike Nb-1212Y, the Nb-1212Ho compound showed neither superconductivity nor a magnetic order down to 1.8Â K. A relatively large magneto-resistance approximately â7% was found at 30Â K.
Related Topics
Physical Sciences and Engineering
Physics and Astronomy
Condensed Matter Physics
Authors
S. Balamurugan, K. Yamaura, E. Takayama-Muromachi,