Spontaneous Quantum Hall Effect in chiral d-density waves
We study the electromagnetic response of a chiral \({\rm d_{xy}+id_{x^2-y^2}}\) charge density wave state. Due to parity (\({\cal P}\)) and time reversal (\({\cal T}\)) violation, Chern-Simons terms emerge in the effective action of the U(1) gauge field. As a consequence electric and magnetic fields...
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description | We study the electromagnetic response of a chiral \({\rm d_{xy}+id_{x^2-y^2}}\) charge density wave state. Due to parity (\({\cal P}\)) and time reversal (\({\cal T}\)) violation, Chern-Simons terms emerge in the effective action of the U(1) gauge field. As a consequence electric and magnetic fields are coupled providing the possibility of observing the Spontaneous Quantum Hall Effect i.e. generation of Hall voltage via the sole application of an electric field. We show how the Chern-Simons terms are induced and discuss the topological origin of the quantization of Hall conductance. |
doi_str_mv | 10.48550/arxiv.0802.4080 |
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Due to parity (\({\cal P}\)) and time reversal (\({\cal T}\)) violation, Chern-Simons terms emerge in the effective action of the U(1) gauge field. As a consequence electric and magnetic fields are coupled providing the possibility of observing the Spontaneous Quantum Hall Effect i.e. generation of Hall voltage via the sole application of an electric field. We show how the Chern-Simons terms are induced and discuss the topological origin of the quantization of Hall conductance.</description><identifier>EISSN: 2331-8422</identifier><identifier>DOI: 10.48550/arxiv.0802.4080</identifier><language>eng</language><publisher>Ithaca: Cornell University Library, arXiv.org</publisher><subject>Charge density waves ; Electric fields ; Electromagnetism ; Physics - Mesoscale and Nanoscale Physics ; Physics - Strongly Correlated Electrons ; Quantum Hall effect ; Resistance</subject><ispartof>arXiv.org, 2008-12</ispartof><rights>2008. 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Due to parity (\({\cal P}\)) and time reversal (\({\cal T}\)) violation, Chern-Simons terms emerge in the effective action of the U(1) gauge field. As a consequence electric and magnetic fields are coupled providing the possibility of observing the Spontaneous Quantum Hall Effect i.e. generation of Hall voltage via the sole application of an electric field. We show how the Chern-Simons terms are induced and discuss the topological origin of the quantization of Hall conductance.</abstract><cop>Ithaca</cop><pub>Cornell University Library, arXiv.org</pub><doi>10.48550/arxiv.0802.4080</doi><oa>free_for_read</oa></addata></record> |
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subjects | Charge density waves Electric fields Electromagnetism Physics - Mesoscale and Nanoscale Physics Physics - Strongly Correlated Electrons Quantum Hall effect Resistance |
title | Spontaneous Quantum Hall Effect in chiral d-density waves |
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