Spatially limited antiferromagnetic order in a cluster glass compound Tb2Ni0.90Si2.94

作者: Santanu Pakhira , Chandan Mazumdar , Maxim Avdeev , R.N. Bhowmik , R. Ranganathan

DOI: 10.1016/J.JALLCOM.2019.01.123

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摘要: Abstract In the present study, synthesis of a new ternary intermetallic compound Tb2Ni0.90Si2.94 has been reported. The detailed studies on structure, static and dynamical magnetic properties have investigated by means powder x-ray diffraction, compositional analysis, dc & ac magnetization, non-equilibrium dynamics, heat capacity neutron diffraction measurements. susceptibility reveal that undergoes spin cluster-glass behaviour below 9.9 K. frequency dependence freezing temperature analysed basis dynamic scaling laws such as power-law divergence Vogel-Fulcher law, which further confirm state formation for compound. A study associated with carried out through relaxation along memory effect in zero-field-cooled (ZFC) well field-cooled (FC) conditions aging effect. zero-field reveals presence spatially limited antiferromagnetic phase addition to magnetically frustrated state. This result also supported studies. variation local electronic environment among rare-earth ions caused structural disorder Ni/Si argued be responsible coexistence different phases.

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