Journal
SCIENTIFIC REPORTS
Volume 11, Issue 1, Pages -Publisher
NATURE PORTFOLIO
DOI: 10.1038/s41598-021-00544-8
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- UGC, India
- DST-PURSE Government of India
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In this study, three magnetic transitions were reported in bilayer La1.4Sr1.6Mn2O7 at different temperatures, with corresponding magnetic phases identified through MAPs and Kouvel-Fisher method. The critical behaviors around these transition points were analyzed, revealing the presence of four magnetic phases in the material.
Here, we report three magnetic transitions at 101 K (TC1), 246 K (TC2) and 295 K (TC3) in bilayer La1.4Sr1.6Mn2O7. The second order phase transitions have been identified at these transition points with the help of change in entropy analysis and modified Arrott plots (MAPs). The critical behavior around TC1, TC2 and TC3 have been studied by MAPs and Kouvel-Fisher method. Based on these analyses four magnetic phases are: (1) 2D Ising ferromagnetic (FM) below TC1,(2) 2D Heisenberg canted antiferromagnetic (CAFM-I) and FM clusters in temperature range TC1 < T < TC2, (3) 2D Heisenberg CAFM-II and FM clusters with non magnetically interacting planes in temperature range TC2 < T < TC3 and (4) paramagnetic for T > TC3.
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