Exotic electronic phases in the second Landau level |
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| Institution: | 1. Princeton University, Princeton, NJ 08544, USA;2. University of Florida, Gainesville, FL 32611, USA;3. National High Magnetic Field Laboratory, Tallahassee, FL 32310, USA;4. Sandia National Laboratory, Albuquerque, NM 87185, USA;5. Columbia University, New York, NY 10027, USA;6. Bell Labs,Lucent Technologies, Murray Hill, NJ 07974, USA;1. Institute of Semiconductor and Solid State Physics, Johannes Kepler Universität, A 4040 Linz, Austria;2. Institute of Semiconductor and Solid State Physics, Johannes Kepler Universität, A 4040 Linz, Austria;3. Institute of Physics, Montanuniversität, A 8700 Leoben, Austria;1. School of Mechanical Engineering, Lovely Professional University, Phagwara, Punjab, 144 411, India;2. Applied Superconductivity Laboratory, Cryogenic Engineering Centre, Indian Institute of Technology Kharagpur, Kharagpur, 721 302, India;1. Università di Milano, Dip. di Fisica and INFN, Sezione di Milano, Via Celoria 16, I-20133 Milan, Italy;2. Dip. Fisica, Università “Sapienza”, Piazzale A. Moro 2, I-00185, Rome, Italy;3. INFN, Sezione di Roma I, CNR-NANOTEC UOS Roma, Italy;4. ISC-CNR, UOS Rome, Università “Sapienza”, Piazzale A. Moro 2, I-00185, Rome, Italy |
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| Abstract: | Recent experiments have shown that two-dimensional electron systems with an externally applied magnetic field are an extremely rich ground for many-body physics. In particular, when only two of the Landau levels (LL) are filled an intricate magnetoresistance is found. This result stems from an interesting competition of electronic phases such as fractional quantum Hall liquids, reentrant integer Hall states, and unique quantized states at even denominator LL filling factors. We present a brief review of the transport properties of these electronic phases and discuss in detail the effects of an added in-plane magnetic field. |
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