Bulletin of the American Physical Society
APS March Meeting 2023
Las Vegas, Nevada (March 5-10)
Virtual (March 20-22); Time Zone: Pacific Time
Session F54: Emergent Properties of Complex Oxides Bulk, Thin Films, and Heterostructures I
8:00 AM–11:00 AM,
Tuesday, March 7, 2023
Room: Room 306
Sponsoring Unit: GMAG
Chair: Feng Ye, Oak Ridge National Lab
Abstract: F54.00005 : Study of Magnetic Properties of NdMn1-xCoxO3*
9:12 AM–9:24 AM
(Department of Physics, S.P. College, Cluster University, Srinagar)
We acknowledge the support received from the Inter University Centre (IUC), Indore, India for the magnetic characterization.
We synthesized polycrystalline NdMn1-xCoxO3 (x = 0.0, 0.3, 0.7) samples using ceramic method. Rietveld refined X- ray diffraction pattern revealed the single phase orthorhombic crystal structure of all the samples with space group Pbnm. Temperature dependent magnetic measurements performed in field cooled (FC) and zero field cooled (ZFC) mode at 0.05T exhibit the transition from FM to paramagnetic (PM) phase at Curie temperature Tc which increases with increasing Co concentration. The ZFC magnetization display maximum (Tm) and thereby starts decreasing resulting in the cusp. The sharp peak in the ZFC curve and huge difference between the ZFC and FC measurements at lower temperatures are suggestive of antiferromagnetic (AFM) coupling. It is seen that there is a decrease in peak magnetization in x = 0.7 sample as compared to x = 0.0 & 0.3 samples. The hysteresis at 10 K suggest the FM interactions at small fields and at higher fields a typical AFM character is seen which is more prominent in x = 0.7 sample. The magnetic properties are very well explained in terms of the mixed valence states of Mn and Co confirmed using X-ray absorption spectroscopy (XAS) and X-ray photoelectron spectroscopy (XPS) studies.
*The grant received for this work from the Islamic University of Science and Technology (IUST), Awantipora is acknowledged.
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