Shubnikov–De Haas Oscillations inSrTiO3/LaAlO3Interface
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چکیده
منابع مشابه
Shubnikov-de Haas oscillations in an organic conductor tetramethyltetraselenafulvalene-2,5-dimethyl-7,7', 8,8' tetracyanoquinodimethane (TMTSF-DMTCNQ)
2014 The observation of Shubnikov-de Haas (SdH) oscillations in the metallic, high pressure phase (Metal-II) of TMTSF-DMTCNQ (P > 10 kbar) demonstrates the 3-dimensional, closed nature of the Fermi surface at low temperature (T 2 K). We observe very small Fermi surface crosssections of 1.16 x 1017 m-2 and 2.6 x 1017 m-2 in the ab and ac planes respectively. From the field and temperature d...
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Three possible many-body mechanisms giving rise to de Haas-van Alphen oscillations with frequencies that correspond to linear combinations of ordinary closed orbits of the Fermi surface are discussed in the context of heavy-fermion systems. The mechanisms are: (i) magnetic breakdown across the Kondo hybridization gap (magnetically induced tunneling), (ii) the strong nonlinear dependence of the ...
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We report measurements of transport in a two-dimensional electron gas in a spatially random magnetic field in which the average magnetic field extends from the classical regime ^vc&t,1 into the quantum Hall regime. Experiments make use of a rough Nd-Fe-B permanent magnet on the surface of a GaAs heterostructure. Effective mass, transport and total scattering times, and g-factor-enhancement valu...
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We present the first investigation of Shubnikov–de Haas (SdH) oscillations of two-dimensional electron gas formed in an InAsN/InGaAs single quantum well (QW) grown on an InP substrate using gas source molecular beam epitaxy and a radio-frequency (rf) plasma nitrogen source. The photoluminescence (PL) peak energy of the InAsN/InGaAs QW decreases compared with that of InAs/InGaAs QW. This agrees ...
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The de Haas-van Alphen effect (dHvAE), describing oscillations of the magnetization as a function of magnetic field, is commonly assumed to be a definite sign for the presence of a Fermi surface (FS). Indeed, the effect forms the basis of a well-established experimental procedure for accurately measuring FS topology and geometry of metallic systems, with parameters commonly extracted by fitting...
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ژورنال
عنوان ژورنال: Physical Review Letters
سال: 2010
ISSN: 0031-9007,1079-7114
DOI: 10.1103/physrevlett.105.206401