X-ray absorption spectroscopy (XAS) and optical absorption spectroscopy (OAS) measurements have been performed on polycrystalline samples of PrFeO 3+ δ sintered at …
I Felner, E Galstyan, I Nowik - Physical Review B—Condensed Matter and …, 2005 - APS
Two magnetic transitions are observed in the magnetosuperconducting RuEu 2− x Ce x Sr 2 Cu 2 O 10− δ (Ru-1222), at TM∼ 160 K and TM 2∼ 80 K. Below TM 2 the Ru moments are …
VPS Awana, MA Ansari, A Gupta, RB Saxena… - Physical Review B …, 2004 - APS
The RuSr 2 Gd 1.5 Ce 0.5 Cu 2 O 10− δ (Ru-1222) compounds, with varying oxygen content, crystallize in a tetragonal crystal structure (space group I 4∕ mmm). Resistance (R) …
I Felner, VPS Awana, E Takayama-Muromachi - Physical Review B, 2003 - APS
We have studied the magnetic properties of nonsuperconducting RuSr 2 L 1.5 Ce 0.5 Cu 2 O 10 [L= Y, Dy, and Ho (Ru-1222)] compounds synthesized under high pressure (6 Gpa) at …
We report here the results of thermogravimetric (TG) analysis on the oxygen non- stoichiometry of RuSr2GdCu2O8− δ (Ru-1212) and RuSr2 (Gd0. 75Ce0. 25) 2Cu2O10− δ …
VPS Awana, H Kishan, O Eshkenazi… - Journal of Physics …, 2006 - iopscience.iop.org
We report structural, electrical, thermopower and magnetic properties of the Ru 1− x Co x Sr 2 Eu 1.5 Ce 0.5 Cu 2 O 10− δ (1.0≥ x≥ 0.0) system. Substitution of Co at the Ru site in the …
VPS Awana - Frontiers in magnetic materials, 2005 - Springer
Co-existence of superconductivity and magnetism (in particular the ferromagnetism) has been a point of discussion over decades [1, 2]. The two phenomenon being co-existing with …
RuY1. 5Ce0. 5Sr2Cu2O10, is not superconducting (SC) and orders magnetically at TM= 152 K. The Ru moment at 5 K is 0.75 μB. Ferromagnetic hysteresis loops are observed below …