Large thermoelectric voltage in point contacts of Ni ferromagnetic metals

Kenji Kondo, Hideo Kaiju, Akira Ishibashi

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Recently, we have proposed a spin quantum cross structure (SQCS) device toward the realization of novel spintronics devices. In this paper, we have investigated thermoelectric effects in point contacts (PCs) of Ni ferromagnetic metals using SQCS devices, theoretically and experimentally. The calculated results show that the thermoelectric voltage V q changes from 0.48 mV to 2.12 mV with the temperature difference of PCs increasing from 10 K to 50 K. Also, the magnitude of the theoretical thermoelectric voltage agrees very well with that of the experimental result. PCs of SQCS devices with Ni electrodes can serve as spin dependent thermobatteries.

Original languageEnglish
Title of host publicationThermoelectric Materials for Solid-State Power Generation and Refrigeration
Pages7-12
Number of pages6
DOIs
Publication statusPublished - 2011 Dec 1
Externally publishedYes
Event2010 MRS Fall Meeting - Boston, MA, United States
Duration: 2010 Nov 292010 Dec 3

Publication series

NameMaterials Research Society Symposium Proceedings
Volume1314
ISSN (Print)0272-9172

Conference

Conference2010 MRS Fall Meeting
CountryUnited States
CityBoston, MA
Period10/11/2910/12/3

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

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  • Cite this

    Kondo, K., Kaiju, H., & Ishibashi, A. (2011). Large thermoelectric voltage in point contacts of Ni ferromagnetic metals. In Thermoelectric Materials for Solid-State Power Generation and Refrigeration (pp. 7-12). (Materials Research Society Symposium Proceedings; Vol. 1314). https://doi.org/10.1557/opl.2011.267