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Spincaloritronic measurements: a round robin comparison of the longitudinal spin Seebeck effect

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arxiv 1812.00999 v1 pith:J6QUW3WQ submitted 2018-12-03 cond-mat.mes-hall

Spincaloritronic measurements: a round robin comparison of the longitudinal spin Seebeck effect

A. Sola (1) , V. Basso (1) , M. Kuepferling (1) , M. Pasquale (1) , D. Meier (2) , G. Reiss (2) , T. Kuschel (2) , T. Kikkawa (3)
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K. Uchida (3 4) E. Saitoh (3) H. Jin (5) S. Boona (5) S. Watzman (5) J. Heremans (5) M. B. Jungfleisch (6) W. Zhang (7) J. E. Pearson (8) A. Hoffmann (8) H. W. Schumacher (9) ((1) Istituto Nazionale di Ricerca Metrologica Turin Italy (2) Center for Spinelectronic Materials Devices Bielefeld University Bielefeld Germany (3) Institute for Materials Research Tohoku University Sendai Japan (4) National Institute for Materials Science Tsukuba (5) Department of Mechanical Aerospace Engineering The Ohio State University Columbus Ohio USA (6) Department of Physics Astronomy University of Delaware Newark (7) Department of Physics Oakland University Rochester (8) Materials Science Division Argonne National Laboratory Argonne (9) Physikalisch-Technische Bundesanstalt Braunschweig Germany)
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classification cond-mat.mes-hall
keywords spinseebeckeffectmeasurementsrobinroundanalysisbranch
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The rising field of spin caloritronics focuses on the interactions between spin and heat currents in a magnetic material; the observation of the spin Seebeck effect opened the route to this branch of research. This paper reports the results of a round robin test performed by five partners on a single device highlighting the reproducibility problems related to the measurements of the spin Seebeck coefficient, the quantity that describes the strength of the spin Seebeck effect. This work stimulated the search for more reproducible measurement methods through the analysis of the systematic effects.

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