Anomalous Nernst Effect in flexible co-based amorphous ribbons

• Published in: Sensors (Basel, Switzerland) Vol. 23; no. 3; pp. 1 - 14
• Main Authors: Correa, Marcio A., Ferreira, Armando José Barros, Souza, Arthur L. R., Dantas Neto, João. M., Bohn, Felipe, Vaz, Filipe, Kurlyandskaya, Galina V.
• Format: Journal Article
• Language: English
• Published: Switzerland Multidisciplinary Digital Publishing Institute (MDPI) 27-01-2023; MDPI AG; MDPI
• Subjects: Anisotropy; Anomalous Nernst effect; co-based amorphous ribbon; Corrosion; Energy conservation; Energy consumption; Flexible sensors; Germany; Glass substrates; Linearity; Magnetic fields; Magnetic measurement; Magnetic properties; Magnetic sensors; Magnetism; Magnetization process; Magnetostriction; Nernst-Ettingshausen effect; Ribbons; Science & Technology; Sensors; Germany; co-based amorphous ribbon; magnetization process; magnetic sensors; anomalous Nernst effect; magnetic properties; flexible sensors
• ISSN: 1424-8220; 1424-8220
• DOI: 10.3390/s23031420

Fe<inline-formula> 3 </inline-formula>Co<inline-formula> 67 </inline-formula>Cr<inline-formula> 3 </inline-formula>Si<inline-formula> 15 </inline-formula>B<inline-formula> 12 </inline-formula> ribbons with a high degree of flexibility and excellent corrosion stability were produced by rapid quenching technique. Their structural, magnetic, and thermomagnetic (Anomalous Nernst Effect) properties were studied both in an as-quenched (NR) state and after stress annealing during 1 h at the temperature of 350 °C and a specific load of 230 MPa (AR). X-ray diffraction was used to verify the structural characteristics of our ribbons. Static magnetic properties were explored by inductive technique and vibrating sample magnetometry. The thermomagnetic curves investigated through the Anomalous Nernst Effect are consistent with the obtained magnetization results, presenting a linear response in the thermomagnetic signal, an interesting feature for sensor applications. Additionally, Anomalous Nernst Effect coefficient <inline-formula> S A N E </inline-formula> values of <inline-formula> 2.66 μ </inline-formula>V/K and <inline-formula> 1.93 μ </inline-formula>V/K were estimated for the as-quenched and annealed ribbons, respectively. The interplay of the low magnetostrictive properties, soft magnetic behavior, linearity of the thermomagnetic response, and flexibility of these ribbons place them as promising systems to probe curved surfaces and propose multifunctional devices, including magnetic field-specialized sensors.
M.A.C. thanks CAPES (8887.573100/2020-00) and CNPq. A.F. thanks the FCT (CTTI-31/18- C.F. (2) junior researcher contract). G.V.K was supported in the frame of the Priority-2030 Program of Ural Federal University.