Shubnikov-de Haas effect

Dybko K, Szuszkiewicz W, Dynowska E, Paszkowicz W, Witkowska B (1998) Band structure of /i-HgS from Shubnikov-de Haas effect. Physica B 256-258 629-632... 

Oshima K, Mori T, hiokuchi H, Urayama H, Yamochi H, Saito G (1988) Shubnikov-de Haas effect and the Eermi surface in an ambient-pressure organic superconductor (bis (ethylenedithiolo)tetrathiafulvalene)2Cu(NCS)2. Phys Rev B 38 938-941... 

Fig. 3) This figure exhibits radiation induced magneto-resistance oscillations at/ = 360 GHz. Note that fast oscillations, which are due to the Shubnikov-de Haas effect, are superimposed on the slow radiation induced component. Cyclotron resonance heating is visible as noise at Bj ...

Shubnikov-de Haas Effect and Thermoelectric Power [2e.f.o1. Below 1 K and above 8 Tesla, Shubnikov-de Haas (SdH) oscillations were observed in the transverse magnetoresistance curve (Fig. 15). This is the first observation of a SdH signal in the organic superconductors, and is the conclusive evidence of the 2D nature of this compound. The oscillation of A(l/H) = 0.0015 T- (for both H and D salts) corresponds to the area of the extremal orbit of S = 6.37 x 10 cm- from ... 

MAGNETOTRANSPORT IN (BEDT-TTF)2Cu(NCS)2 SHUBNIKOV-DE HAAS EFFECT AND UPPER CRITICAL FIELD... 

The Fourier spectrum of these oscillations (H a ), shown in Fig. 2, consists of a sharp symmetric peak centered at a frequency of about 600 T, and a smaller peak at around 1200 T, obviously the second harmonic in the spectrum of an anharmonic oscillation. The oscillations being thus periodic in 1/H, we are confident that we observe in fact the Shubnikov-de Haas effect. An observed frequency F is then related to an extremal cross-section S of the Fermi Surface normal to the magnetic field direction by S=(2iTe/tic)F /13/, and thus geometric information about the Fermi Surface can be obtained from the angular dependence F(0). The result for the fundamental peak frequency in ET2Cu(NCS)2 is shown in Fig. 3. 

Mercury selenide HgSe -0.274 r8v nd r 6c 4.2 Shubnikov-de Haas effect... 

The magnetization or the magnetic susceptibility is the most common one of these physical quantities, and its periodic variation is called the de Haas-van Alphen (dHvA) effect (de Haas and van Alphen 1930, 1932). It provides one of the best tools for the investigation of Fermi surface properties such as the extremal cross-sectional area S, the cyclotron mass w and the scattering lifetime x of metals (Shoenberg 1984). Sometimes other physical quantities are also measured for example, torque, static strain, ultrasonic velocity, and magnetoresistance, etc. The last type of measurement is called the Shubnikov-de Haas effect. 

K for a number of samples from each stmcture. Shubnikov-de Haas (SdH) oscillations and Hall effect were measured at 1.4-h1.2 K in magnetic fields up to 6 T in order to determine carrier densities N. No significant difference between the carrier densities of the two mesas in all samples was observed neither at P=0 nor under compression (Fig. la, Fig. 2a). Therefore, the anisotropy of the resistance can be fully ascribed to anisotropy of the corresponding mobilities. The mobilities in [1-... 

When a high magnetic field H) is applied to lowdimensional conductors at low temperatures, several magnetooscillation phenomena, caused by Landau sublevels passing through the Fermi level, are observed (see [521-531] and references cited therein). In 2D conductors (with closed orbits) the magnetization oscillation is known as the de Haas-van Alphen (dHvA) effect and the magnetoresistance oscillation as the Shubnikov-de Haas (SdH) effect. These effects have been observed firstly in thin metal films [521,522] and more recently in a number of low-dimensional... 

The Hall effect of boron carbide is small (Fig. 35a and b). It depends on composition and temperature (14,147-149). Because the calculation of the Hall mobility from the measured Hall constant depends strongly on the electronic transport mechanism, which for boron carbide has not yet been finally solved, the mobilities calculated after classical theories and shown in Fig. 35 are somewhat questionable. Hall effect and magnetoresistance were measured up to 15 T (Figs. 36 and 37) (157). The behavior expected from classical theory was confirmed in a large range, and for B > 13 T the magnetoresistance seems to indicate beginning Shubnikov-de Haas oscillations. The transport parameters obtained are listed in Table 3. 

Ahn J. and Sellmyer D. J., Fermi surface of AuSba- II. de Haas-van Alphen and de Haas-Shubnikov effects, Phys. Rev. B1 (1970) pp. 1285-1296. 

Magnetic quantum oscillations in bismuth were first observed in the field dependence of the electrical resistivity by Shubnikov and de Haas [246] shortly before the dHvA effect was discovered. Usually, however, the SdH effect is weak and hard to observe except in semimetals, like bismuth, and semiconductors. 

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