A room-temperature polymeric spin-valve
Sayani Majumdar, Himadri S. Majumdar, Reino Laiho, Ronald Osterbacka
Abstract
We report giant magnetoresistance up to 150 percent at low bias current and low temperature as well as room temperature magnetoresistance in polymeric spin-valves having the structure LSMO/conjugated polymer/Co. The conjugated polymers, regiorandom and regioregular P3HT were used as the spacer materials. We observed an asymmetric bias voltage dependence of different devices and additional, hitherto unseen, peaks in MR vs. magnetic field plot with low bias currents measurements that we attribute to local magnetic moments due to spin-trapping in the defects in the spacer material. Also, various spacer thicknesses led to variation of magnetoresistance within a certain temperature range.
Create a lesson
Related papers
A Gaussian process coarse-grained potential for Na-montmorillonite
Yalda Pedram, Yaoting Zhang, Laurent Brochard et al.
First-principles theory of phonon renormalization from nonlinear electron-phonon interactions
Florian Kluibenschedl, Matthew Houtput, Jacques Tempere et al.
Spin-Lattice Dynamics and Interactions in Magnonic Spinels
Hari Paudyal, Yuri Suzuki, Michael E. Flatté et al.
Magnon-Phonon Dynamics in Multidimensional Antiferromagnetic Oxides
Yogendra Limbu, Michael E. Flatté, Durga Paudyal
Strain-Induced Metal-to-Insulator Transition in Antiferromagnetic SrCrO3 Thin Films
S. Jöhr, A. Carta, J. Moreno et al.
Tuning the Coercive Field in Ferroelectric Hf0.5Zr0.5O2-Al2O3 Heterostructures via Interfacial Charge Dynamics
Marshall B. Frye, Chanyoung Kim, Jeong-Woo Sun et al.