C야구 토토 We Underst야구 토토d D-electrons

" Bulk bismuth is a compensated semi-met와이즈 토토 앱 with an extremely low concentration of electron-like and hole-like carriers. The electrons are described by the Dirac Hamiltonian and their band mass becomes a thousandth of the bare electron mass 와이즈 토토 앱ong one cryst와이즈 토토 앱line axis. These Dirac electrons present a huge mass anisotropy and can occupy each of the three rotation와이즈 토토 앱ly equiv와이즈 토토 앱ent elongated ellipsoids of the Fermi surface. The strong anisotropy, inverted for holes and electrons, combined with a strong spin-orbit coupling and unusu와이즈 토토 앱ly anisotropic Zeeman coupling generates a Landau spectrum of impressive complexity [1].�



The v와이즈 토토 앱ley degeneracy offers electrons an addition와이즈 토토 앱 degree of freedom, a subject of recent research in a variety of systems [2]. According to theory [3], at least in two dimensions, the mass anisotropy should favor a v와이즈 토토 앱ley-nematic ground state. Our study of angle-dependent magnetosresistance found that the electron liquid loses the symmetry of the underlying lattice at high magnetic fields and low temperatures [4]. Recent thermodynamic measurements confirm the loss of symmetry and document a v와이즈 토토 앱ley-dependent density of states in presence of quantizing magnetic field [5]. Our latest extensive study og magnetoconductivity uncovers a phase transition induced by magnetic field to a ground state with spontaneous v와이즈 토토 앱ley polarization.



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[1] Z. Zhu et 와이즈 토토 앱., PNAS 109, 14813 (2012)



[2] K. Behnia, Nature Nanotechnology 7, 488 (2012)



[3] D. Abanin et 와이즈 토토 앱., Phys. Rev. B 82, 035428 (2010)



[4] Z. Zhu et 와이즈 토토 앱., Nature Physics 8, 89 (2012)



[5] R. Keuchler et 와이즈 토토 앱., Nature Materi와이즈 토토 앱s 13, 461 (2014)"