Electrical Conductivity and Thermo-electric Motive Force in MgO Single Crystal

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概要

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• Electrical conductivities of MgO single crystals were measured by ac method from 650℃ to 1000℃. Curves of log σvs 1/T have the slope of 2.3 ev. Specific resistivities of magnesium-colored samples are smaller than those of uncolored and oxygen-colored samples, so that it may be concluded that charge carriers are originated from impurity levels of oxygen vacancies or interstitial magnesiums. The measurements of sign of thermoelectric motive force showed that charge carriers are electrons in all samples. The values of T.E.M.F. are from 0.1 mV/deg. to 10mV/deg. at various concentrations of excess magnesium.

• 社団法人日本物理学会の論文
• 1955-03-05

著者

• Yamaka E.

  Electrical Communication Laboratory

• SAWAMOTO K.

  Electrical Communication Laboratory

関連論文

• Electrical Conductivity and Thermo-electric Motive Force in MgO Single Crystal

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