DPG Phi
Verhandlungen
Verhandlungen
DPG

Dresden 2014 – wissenschaftliches Programm

Bereiche | Tage | Auswahl | Suche | Aktualisierungen | Downloads | Hilfe

MA: Fachverband Magnetismus

MA 47: Spincaloric Transport I (jointly with TT)

MA 47.3: Vortrag

Donnerstag, 3. April 2014, 17:15–17:30, HSZ 403

Magneto-thermopower and Magnetoresistance of single Co-Ni alloy Nanowires — •Tim Böhnert1, Victor Vega2, Ann-Kathrin Michel1, Victor M. Prida2, and Kornelius Nielsch11Universität Hamburg, Hamburg, Germany — 2Universidad de Oviedo, Oviedo, Spain

The magneto-thermopower is measured and correlated to the anisotropic magnetoresistance of Co-Ni alloyed nanowires with varying composition. The highest absolute and relative variation of the Seebeck coefficient in perpendicularly applied magnetic fields at room temperature are determined to be 1.5 µVK−1 for Co0.24Ni0.76 and 8.1 % for Co0.39Ni0.61 nanowires. Power factors of 3.7 mW/mK2 have been achieved, which is competitive with common thermoelectric materials like Bi2Te3. For Co-Ni nanowires containing up to 39 % Co a linear relationship between the magnetic field dependent change of the Seebeck coefficient and the electrical conductivity is found.

100% | Mobil-Ansicht | English Version | Kontakt/Impressum/Datenschutz
DPG-Physik > DPG-Verhandlungen > 2014 > Dresden