Magnetic susceptibility of n-type GaAs

Journal article

The magnetic susceptibility χ of n-type GaAs was determined for a wide variety of dopants and carrier concentrations n ranging from 3.0 × 10 6 cm 3 to 3.6 × 10 18 cm 3 over a temperature range from 9 to 300 K. A constant χ is found for n up to ≈2 × 10 17 cm 3 (at 300 K). For higher n, the diamagnetic susceptibility increases linearly with n 1/3 in accordance with the LandauPeierls term. This behavior is independent of the type of dopant. In contrast to χ, the rate of change dχ/dT depends on n in a more complex, non-monotonic way. © 2012 IOP Publishing Ltd.

Authors: Hesjedal, T; Kretzer, U; Ney, A

• Publication status: Published
• Journal: SEMICONDUCTOR SCIENCE AND TECHNOLOGY
• Volume: 27
• Issue: 5
• Pages: 055018-055018
• Publication date: 2012-05-01
• DOI: 10.1088/0268-1242/27/5/055018
• EISSN: 1361-6641
• ISSN: 0268-1242
• Language: English