2010/08/29 by M. Ben Shalom, A. Ron, A. Palevski +1 · 160 citations
Chemistry · Materials Science · Physics and Astronomy · #Amplitude #Atomic and Subatomic Physics Research #Chemistry #Condensed matter physics #Electronic and Structural Properties of Oxides #Magnetic and transport properties of perovskites and related materials #Magnetic field #Oscillation (cell signaling) #Physics #Quantum mechanics #cond-mat.mes-hall #cond-mat.mtrl-sci #cond-mat.str-el
paper · pdf · doi:10.1103/physrevlett.105.206401
published in Physical Review Letters 105(20), 206401 (American Physical Society)
arxiv created 2010/08/29 · openalex publication_date 2010/11/09 · arxiv updated 2015/05/19 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
Quantum magnetic oscillations in SrTiO3/LaAlO3 interface are observed in the magnetoresistance. We study their frequency as a function of gate voltage and the evolution of their amplitude with temperature. The data are consistent with the Shubnikov-de Haas theory. The Hall resistivity ρ(xy) is nonlinear at low magnetic fields. ρ(xy) is fitted assuming multiple carrier contributions. We infer the density of the mobile charge carriers from the oscillations frequency and from Hall measurements. The comparison between these densities suggests multiple valley and spin degeneracy. The small amplitude of the oscillation is discussed in the framework of the multiple band scenario.