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Applied Physics Letters
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Effect of compressive uniaxial stress on high field domains in n-type Ge

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Abstract

The effect of compressive uniaxial stress on the threshold field for nucleation of high field domains in n-type Ge at 27°K has been measured. The increase in threshold field is approximately quadratic in stress and is about 15% for a stress of 104 kg/cm2 applied along a 〈100〉 direction parallel to the current and about 37% for a stress of 104 kg/cm2 applied along a 〈100〉 perpendicular to the current. These results indicate that, while in a strong electric field the 〈110〉 valleys are occupied at high stresses, transfer of electrons to these valleys is not the cause of bulk negative differential conductivity in n-type Ge. © 1967 The American Institute of Physics.

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Applied Physics Letters

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