Quantum Theory of Low-Dimensional Condensed Matter          (Materials Research)
{'Code': '03070005', 'Directorate': {'Abbreviation': 'MPS', 'LongName': 'Direct For Mathematical & Physical Scien'}, 'Division': {'Abbreviation': 'DMR', 'LongName': 'Division Of Materials Research'}}
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With the advent of sophisticated experimental methods for the                   synthesis of highly specific epitaxially grown films (such as                   extremely thin films of granular metals) and layered structures                 (such as semiconductor heterojunctions) it has become possible to               explore the properties of a variety of well characterized two-                  dimensional electronic systems.  Various modern lithographic                    techniques further broaden the range of artificial two-                         dimensional structures that can be studied.  In particular, a                   variety of experiments at low temperatures have revealed in these               two-dimensional structures a surprising richness of macroscopic                 quantum phenomena:  the integer and fractionally quantized Hall                 effect, quantum effects in the onset of superconductivity,                      resistance oscillations in Josephson junction arrays, and                       resistance fluctuations and Aharanov-Bohm oscillations in normal                metals to name a few.  The proposed research deals with various                 macroscopic manifestations of quantum phenomena in one, and                     especially two-dimensional systems.  The work topics fall into                  four basic categories:  1) the quantum Hall effect, 2) quantum                  effects in granular, or otherwise strongly disordered thin films                of superconducting material, 3) model tunneling problems                        involving more than one-dimensional configuration space, and 4)                 the properties of quasi-one-dimensional organic conductors.
{'FirstName': 'Steven', 'LastName': 'Kivelson', 'PI_MID_INIT': 'A', 'PI_SUFX_NAME': None, 'PI_FULL_NAME': 'Steven A Kivelson', 'EmailAddress': 'kivelson@stanford.edu', 'NSF_ID': '000454979', 'StartDate': '08/01/1987', 'EndDate': None, 'RoleCode': 'Principal Investigator'}
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{'Code': '1765', 'Text': 'CONDENSED MATTER & MAT THEORY'}
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