An investigation of thermal conductivity of isotope silicon as a function of temperature estimated by molecular dynamics

Koichi Kakimoto, A. Murakawa, Y. Hashimoto

Research output: Contribution to journalConference article

1 Citation (Scopus)

Abstract

We investigated the effect of isotope concentration on thermal conductivity of silicon as a function of temperature by using equilibrium molecular dynamics simulation. It was found that thermal conductivity of silicon crystals was increased by purification of isotopes of a temperature near room temperature. At a temperature around 1000 K, the degradation of thermal conductivity based on the thermal effect became more dominant than that based on the isotope effect. Therefore, the discrepancy in thermal conductivities of silicon crystals with different isotope concentrations decreased.

Original languageEnglish
JournalJournal of Crystal Growth
Volume275
Issue number1-2
DOIs
Publication statusPublished - Feb 15 2005

Fingerprint

silicon isotopes
Silicon
Isotopes
Molecular dynamics
Thermal conductivity
thermal conductivity
molecular dynamics
isotopes
silicon
Temperature
Crystals
temperature
purification
isotope effect
Thermal effects
crystals
Purification
temperature effects
degradation
Degradation

All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics
  • Inorganic Chemistry
  • Materials Chemistry

Cite this

An investigation of thermal conductivity of isotope silicon as a function of temperature estimated by molecular dynamics. / Kakimoto, Koichi; Murakawa, A.; Hashimoto, Y.

In: Journal of Crystal Growth, Vol. 275, No. 1-2, 15.02.2005.

Research output: Contribution to journalConference article

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N2 - We investigated the effect of isotope concentration on thermal conductivity of silicon as a function of temperature by using equilibrium molecular dynamics simulation. It was found that thermal conductivity of silicon crystals was increased by purification of isotopes of a temperature near room temperature. At a temperature around 1000 K, the degradation of thermal conductivity based on the thermal effect became more dominant than that based on the isotope effect. Therefore, the discrepancy in thermal conductivities of silicon crystals with different isotope concentrations decreased.

AB - We investigated the effect of isotope concentration on thermal conductivity of silicon as a function of temperature by using equilibrium molecular dynamics simulation. It was found that thermal conductivity of silicon crystals was increased by purification of isotopes of a temperature near room temperature. At a temperature around 1000 K, the degradation of thermal conductivity based on the thermal effect became more dominant than that based on the isotope effect. Therefore, the discrepancy in thermal conductivities of silicon crystals with different isotope concentrations decreased.

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