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Title: Spin Seebeck devices using local on-chip heating

Abstract

A micro-patterned spin Seebeck device is fabricated using an on-chip heater. Current is driven through a Au heater layer electrically isolated from a bilayer consisting of Fe{sub 3}O{sub 4} (insulating ferrimagnet) and a spin detector layer. It is shown that through this method it is possible to measure the longitudinal spin Seebeck effect (SSE) for small area magnetic devices, equivalent to traditional macroscopic SSE experiments. Using a lock-in detection technique, it is possible to more sensitively characterize both the SSE and the anomalous Nernst effect (ANE), as well as the inverse spin Hall effect in various spin detector materials. By using the spin detector layer as a thermometer, we can obtain a value for the temperature gradient across the device. These results are well matched to values obtained through electromagnetic/thermal modeling of the device structure and with large area spin Seebeck measurements.

Authors:
; ; ;  [1]
  1. Materials Science Division, Argonne National Laboratory, Argonne, Illinois 60439 (United States)
Publication Date:
OSTI Identifier:
22410014
Resource Type:
Journal Article
Journal Name:
Journal of Applied Physics
Additional Journal Information:
Journal Volume: 117; Journal Issue: 17; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0021-8979
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; DETECTION; ELECTRIC CURRENTS; FERRIMAGNETIC MATERIALS; FERRIMAGNETISM; FERRITES; GOLD; HALL EFFECT; HEATERS; HEATING; IRON OXIDES; LAYERS; NERNST EFFECT; SEEBECK EFFECT; SPIN; TEMPERATURE GRADIENTS

Citation Formats

Wu, Stephen M., E-mail: swu@anl.gov, Fradin, Frank Y., Hoffman, Jason, Hoffmann, Axel, and Bhattacharya, Anand. Spin Seebeck devices using local on-chip heating. United States: N. p., 2015. Web. doi:10.1063/1.4916188.
Wu, Stephen M., E-mail: swu@anl.gov, Fradin, Frank Y., Hoffman, Jason, Hoffmann, Axel, & Bhattacharya, Anand. Spin Seebeck devices using local on-chip heating. United States. https://doi.org/10.1063/1.4916188
Wu, Stephen M., E-mail: swu@anl.gov, Fradin, Frank Y., Hoffman, Jason, Hoffmann, Axel, and Bhattacharya, Anand. 2015. "Spin Seebeck devices using local on-chip heating". United States. https://doi.org/10.1063/1.4916188.
@article{osti_22410014,
title = {Spin Seebeck devices using local on-chip heating},
author = {Wu, Stephen M., E-mail: swu@anl.gov and Fradin, Frank Y. and Hoffman, Jason and Hoffmann, Axel and Bhattacharya, Anand},
abstractNote = {A micro-patterned spin Seebeck device is fabricated using an on-chip heater. Current is driven through a Au heater layer electrically isolated from a bilayer consisting of Fe{sub 3}O{sub 4} (insulating ferrimagnet) and a spin detector layer. It is shown that through this method it is possible to measure the longitudinal spin Seebeck effect (SSE) for small area magnetic devices, equivalent to traditional macroscopic SSE experiments. Using a lock-in detection technique, it is possible to more sensitively characterize both the SSE and the anomalous Nernst effect (ANE), as well as the inverse spin Hall effect in various spin detector materials. By using the spin detector layer as a thermometer, we can obtain a value for the temperature gradient across the device. These results are well matched to values obtained through electromagnetic/thermal modeling of the device structure and with large area spin Seebeck measurements.},
doi = {10.1063/1.4916188},
url = {https://www.osti.gov/biblio/22410014}, journal = {Journal of Applied Physics},
issn = {0021-8979},
number = 17,
volume = 117,
place = {United States},
year = {Thu May 07 00:00:00 EDT 2015},
month = {Thu May 07 00:00:00 EDT 2015}
}

Works referencing / citing this record:

Opportunities at the Frontiers of Spintronics
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Tunable Noncollinear Antiferromagnetic Resistive Memory through Oxide Superlattice Design
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Longitudinal spin Seebeck effect in a half-metallic L a 0.7 S r 0.3 Mn O 3 film
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Direct observation of magnon-phonon coupling in yttrium iron garnet
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Paramagnetic Spin Seebeck Effect
journal, May 2015


Antiferromagnetic Spin Seebeck Effect
journal, March 2016


Interface-induced phenomena in magnetism
journal, June 2017


Antiferromagnetic spin Seebeck Effect
text, January 2015


Longitudinal spin Seebeck coefficient: heat flux vs. temperature difference method
journal, April 2017