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Mochel, J.M. Osofsky, Michael Steven 2011-06-02T14:57:10Z 2011-06-02T14:57:10Z 1987 The results of two studies of disordered metals near their metal-insulator transition are presented: (i) A detailed comparison of GexAu1-x and BxCu1-x is carried out in zero magnetic field. GeAu, a high Z material, has been shown to e xh1bit strong spin-orbit effects in a magnetic field while 8Cu, a low Z material, has been shown to exhibit weak spin-orbit effects. Both materials have similar temperature dependent de conductivity behavior in zero field and approximately linear mobility edges; CiilA detailed stud~ of the non-linear dc conductivitu of GeAu and Cx - Cu1-x is carried out for 1.3K<<T<4.2K and for E-fields up to 500V/ cm. Analyzing the o <E> data in the context of an electron gas heating model fields unphysically long electron relaxation times. Alternatively, the E-field can limit renormalization by raising the electron energy above the disordered potential. The s~stem then changes from quantum mechanical scaling to classically diffusive behavior beyond a certain length scale . The temperature and E-field data can then give the characteristic lengths and prefactors for the transition. Submitted by Carolyn Mead (cmead2@illinois.edu) on 2011-06-02T14:57:10Z No. of bitstreams: 1 1987_osofsky.pdf: 7960079 bytes, checksum: f2cc1c2431a3870e313cdaf00653424f (MD5) Made available in DSpace on 2011-06-02T14:57:10Z (GMT). No. of bitstreams: 1 1987_osofsky.pdf: 7960079 bytes, checksum: f2cc1c2431a3870e313cdaf00653424f (MD5) Previous issue date: 1987 Restriction data tranferred 2014-07-01T11:12:27-05:00 Original Data Group with Access UIUC Users [automated] Release Date: none Reason: Thesis Item marked as restricted to the 'UIUC Users [automated]' Group (id=2) by Carolyn Mead (cmead2@illinois.edu) on 2011-06-02T14:57:10Z Item is restricted indefinitely. Open 1411790 http://hdl.handle.net/2142/25213 en 1987 Michael Steven Osofsky spin-orbit scattering E-field disordered metals metal-insulator transition Spin-orbit scattering and E-field effects in discordered metals near the metal-insulator transition Dissertation / Thesis text Physics Physics University of Illinois at Urbana-Champaign Dissertation Ph.D.