6 papers
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…
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.…
Possible quantum fluctuations in the vicinity of the quantum critical point of revealed by high-energy X-ray diffraction study
L. S. I. Veiga, J. R. L. Mardegan, M. v. Zimmermann +7
We explore the evolution of the structural phase transition of , a model system to study the interplay between structural quantum criticality and superc…
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…
Hard X-ray spectroscopy of the itinerant magnets FeSb (Na, K, Ca, Sr, Ba)
B. Mounssef, M. R. Cantarino, E. M. Bittar +3
Ordered states in itinerant magnets may be related to magnetic moments displaying some weak local moment characteristics, as in intermetallic compounds hosting transition metal coo…
Antiferromagnetism weakening with Y-substitution in the TbRhIn intermetallic system
R. P. Amaral, R. Lora-Serrano, D. J. Garcia +8
We report measurements of the temperature dependence specific heat, magnetic susceptibility in single crystals of the series of intermetallic compounds TbYRhIn (nom…