Resistivity study of Dy0.93Y0.07 alloy

International Conference on Recent Trends in Physics 2016

Jena, Rudra Prasad^1 ; Lakhani, Archana^1

UGC-DAE Consortium for Scientific Research, University Campus, Khandwa Road, Indore

452001, India^1

关键词: Antiferromagnetics;    Different-magnetic fields;    Electrical resistivity measurements;    Ferromagnetic regions;    Lower temperatures;    Spinwave excitation;    Temperature range;    Zero-field resistivity;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/755/1/012030/pdf
DOI  :  10.1088/1742-6596/755/1/012030

来源: IOP

【 摘 要 】

The electrical resistivity measurements of the polycrystalline rare earth alloy Dy0.93Y007in the temperature range 2-300K at different magnetic fields are carried out. Two transitions from paramagnetic (PM) to spiral antiferromagnetic (S-AFM) and S-AFM to ferromagnetic (FM) states are clearly seen in the zero field resistivity data. The various contributions to the electrical resistivity of Dy and Dy093Y0 07in three different magnetic states are studied. In the ferromagnetic region, the spin wave excitation energy term increases on decreasing the temperature due the enhanced magnetic anisotropy at lower temperatures.