62 citations · 208 across the 8 of their papers we have counts for
8 papers
Tuning the spontaneous exchange bias effect with Ba to Sr partial substitution in La(SrBa)CoMnO
M. Boldrin, A. G. Silva, L. T. Coutrim +4
The spontaneous exchange bias (SEB) effect is a remarkable phenomenon recently observed in some reentrant spin-glass materials. Here we investigate the SEB in La(Sr$_{0.5-x…
The effect of structural and magnetic disorder on the 3-5 exchange interactions of LaCaCoIrO
L. Bufaiçal, E. Sadrollahi, F. J. Litterst +7
The delicate balance between spin-orbit coupling, Coulomb repulsion and crystalline electric field interactions observed in Ir-based oxides is usually manifested as exotic magnetic…
The spontaneous exchange bias effect on LaBaCoMnO
M. Boldrin, L. T. Coutrim, L. Bufaiçal
LaBaCoMnO is a re-entrant cluster glass material exhibiting a robust negative exchange bias (EB) effect even after being cooled from an unmagnetized state dow…
A phenomenological model for the spontaneous exchange bias effect
L. Bufaiçal, L. T. Coutrim, E. M. Bittar +1
In this work we propose an alternative model to explain the spontaneous exchange bias (SEB) effect observed in spin glass (SG)-like systems. As in a previously proposed model (Ref.…
The zero-field-cooled exchange bias effect in phase-segregated LaACoMnO (A = Ba, Ca, Sr; x = 0, 0.5)
L. T. Coutrim, D. Rigitano, C. Macchiutti +9
In the zero-field-cooled exchange bias (ZEB) effect the unidirectional magnetic anisotropy is set at low temperatures even when the system is cooled in the absence of external magn…
The effect of pressure on LaCaCoIrO re-entrant spin-glass
L. T. Coutrim, E. M. Bittar, L. Mendonça-Ferreira +1
LaCaCoIrO is a re-entrant spin-glass (SG) that exhibits antiferromagnetic and ferromagnetic couplings at and K, respectively, and at $T\sim…
Influence of spin glass-like magnetic relaxation on the zero-field-cooled exchange bias effect
L. T. Coutrim, E. M. Bittar, F. Garcia +1
The zero-field-cooled exchange bias (ZEB) effect is a remarkable phenomenon recently reported for some reentrant spin glass-like compounds. In this work, the time-evolution of magn…
Training-induced inversion of spontaneous exchange bias field on La1.5Ca0.5CoMnO6
L. Bufaical, R. Finkler, L. T. Coutrim +5
In this work we report the synthesis and structural, electronic and magnetic properties of La1.5Ca0.5CoMnO6 double-perovskite. This is a re-entrant spin cluster material which exhi…