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Temperature-dependent Hall scattering factor and drift mobility in remotely doped Si : B/SiGe/Si heterostructures
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UNSPECIFIED (1999) Temperature-dependent Hall scattering factor and drift mobility in remotely doped Si : B/SiGe/Si heterostructures. APPLIED PHYSICS LETTERS, 74 (9). pp. 1245-1247. ISSN 0003-6951.
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Abstract
Hall-and-Strip measurements on modulation-doped SiGe heterostructures and combined Hall and capacitance-voltage measurements on metal-oxide-semiconductor (MOS)-gated enhancement mode structures have been used to deduce Hall scattering factors, r(H), in the Si1-xGex two-dimensional hole gas. At 300 K, r(H) was found to be equal to 0.4 for x = 0.2 and x = 0.3. Knowing r(H), it is possible to calculate the 300 K drift mobilities in the modulation-doped structures which are found to be 400 cm(2) V-1 s(-1) at a carrier density of 3.3 X 10(11) cm(-2) for x = 0.2 and 300 cm(2) V-1 s(-1) at 6.3 X 10(11) cm(-2) for x = 0.3, factors of between 1.5 and 2.0 greater than a Si pMOS control. (C) 1999 American Institute of Physics. [S0003-6951(99)03509-3].
| Item Type: | Journal Article | ||||
|---|---|---|---|---|---|
| Subjects: | Q Science > QC Physics | ||||
| Journal or Publication Title: | APPLIED PHYSICS LETTERS | ||||
| Publisher: | AMER INST PHYSICS | ||||
| ISSN: | 0003-6951 | ||||
| Official Date: | 1 March 1999 | ||||
| Dates: |
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| Volume: | 74 | ||||
| Number: | 9 | ||||
| Number of Pages: | 3 | ||||
| Page Range: | pp. 1245-1247 | ||||
| Publication Status: | Published |
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