skip to main content

SciTech ConnectSciTech Connect

Title: Time resolved spin Seebeck effect experiments

In this Letter, we present the results of transient thermopower experiments, performed at room temperature on yttrium iron garnet/platinum bilayers. Upon application of a time-varying thermal gradient, we observe a characteristic low-pass frequency response of the ensuing thermopower voltage with cutoff frequencies of up to 37 MHz. We interpret our results in terms of the spin Seebeck effect, and argue that small wavevector magnons are of minor importance for the spin Seebeck effect in our thin film hybrid structures.
Authors:
; ; ; ; ;  [1] ;  [1] ;  [2] ; ;  [1] ;  [3] ;  [1] ;  [4] ;  [3]
  1. Walther-Meißner-Institut, Bayerische Akademie der Wissenschaften, Garching (Germany)
  2. (Netherlands)
  3. (NIM), Munich (Germany)
  4. (Germany)
Publication Date:
OSTI Identifier:
22300199
Resource Type:
Journal Article
Resource Relation:
Journal Name: Applied Physics Letters; Journal Volume: 104; Journal Issue: 20; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; ELECTRIC POTENTIAL; FERRITE GARNETS; LAYERS; MAGNONS; MHZ RANGE; PLATINUM; SEEBECK EFFECT; SPIN; TEMPERATURE GRADIENTS; TEMPERATURE RANGE 0273-0400 K; THIN FILMS; TIME RESOLUTION; TRANSIENTS; YTTRIUM COMPOUNDS