2001/09/25 by Subir Sachdev · 2 citations
Mathematics · Physics and Astronomy · #Advanced Condensed Matter Physics #Condensed matter physics #Electron #Electron magnetic dipole moment #Ferromagnetism #Field (mathematics) #Magnetic dipole #Magnetic field #Magnetic moment #Mathematics #Moment (physics) #Physics #Physics of Superconductivity and Magnetism #Quantum and electron transport phenomena #Quantum mechanics #Spin (aerodynamics) #Spin glass #Spin magnetic moment #Spin polarization #cond-mat.dis-nn #cond-mat.str-el
paper · pdf · doi:10.1007/s12043-002-0014-0
published in Pramana 58(2), 285-292 · 5 pages, 2 figures; to appear in a special issue of Pramana, published by the Indian Academy of Sciences, in honor of Professor N. Kumar; (v3) added references
arxiv created 2001/09/25 · openalex publication_date 2002/02/01 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
We discuss the possibility of spin glass order in the vicinity of the unexpected metallic state of the two-dimensional electron gas in zero applied magnetic field. An average ferromagnetic moment may also be present, and the spin glass order then resides in the plane orthogonal to the ferromagnetic moment. We argue that a quantum transition involving the destruction of the spin glass order in an applied in-plane magnetic field offers a natural explanation of some features of recent magnetoconductance measurements. We present a quantum field theory for such a transition and compute its mean field properties.