Antimony (Sb) effective masses, g-factor, spin-splitting factor

2005 ◽  
pp. 1-5
Author(s):  
Keyword(s):  
Spin Splitting ◽  
G Factor ◽  
Effective Masses ◽  
Splitting Factor

THE STUDY OF THE MAGNETIC BREAKDOWN EFFECT AS A FUNCTION OF ANGLE IN THE ORGANIC CONDUCTOR K- (BEDT-TTF)2Cu(NCS)2 IN HIGH MAGNETIC FIELDS

2002 ◽  
Vol 16 (20n22) ◽  
pp. 3355-3359
Author(s):  
I. MIHUT ◽  
C. C. AGOSTA ◽  
C. H. MIELKE ◽  
M. TOKOMOTO
Keyword(s):  
Magnetic Field ◽  
Magnetic Fields ◽  
Spin Splitting ◽  
High Magnetic Fields ◽  
Organic Conductor ◽  
Cross Sectional ◽  
Tank Circuit ◽  
Quantum Oscillations ◽  
Magnetic Breakdown ◽  
Splitting Factor

The magnetic breakdown effect can be seen by the growth of new frequencies in the quantum oscillations in clean metals as a function of magnetic field. We have studied the variation of the amplitudes in the quantum oscillations in the resistance (the Shubnikov-de Haas effect) as a function of angle in the quasi-two dimensional-organic conductor κ-(BEDT-TTF)2Cu(NCS)2. The measurements were made by means of a radio frequency (rf) tank circuit (~ 50 MHz) at very high magnetic fields(50T-60T) and low temperature(500 mK). The geometry of the rf excitation we used excited in-plane currents, and therefore we measured the in-plane resistivity. In contrast to conventional transport measurements that measure the inter-plane resistivity, the in-plane resistivity is dominated by the magnetic breakdown frequencies. As a result we measured much higher breakdown frequency amplitudes than conventional transport experiments. As is expected, the angular dependence of the Shubnikov-de Haas frequencies have a 1/cosθ behavior. This is due to the change of the cross sectional area of the tubular Fermi surface as the angle with respect to the magnetic field is changed. The amplitude of the oscillations changes due to the spin splitting factor which takes into account the ratio between the spin splitting and the energy spacing of the Landau levels which also has 1/cosθ behavior. We show that our data agree with the semi-classical theory (Lifshitz-Kosevich formula).

On the Anomalous Angular Variation of the Spin Splitting Factor of Bismuth

1972 ◽  
Vol 32 (3) ◽  
pp. 653-655 ◽  
Author(s):  
Katsuyoshi Toyoda ◽  
Yasuji Sawada ◽  
Hajimu Kawamura
Keyword(s):  
Spin Splitting ◽  
Angular Variation ◽  
Splitting Factor

Effect of the Dresselhaus spin splitting on the effective Landé g-factor in GaAs–(Ga,Al)As quantum wells under in-plane or growth-direction magnetic fields

2008 ◽  
Vol 39 (3-4) ◽  
pp. 390-393 ◽  
Author(s):  
N. Porras-Monenegro ◽  
C.A. Perdomo-Leiva ◽  
E. Reyes-Gómez ◽  
H.S. Brandi ◽  
L.E. Oliveira
Keyword(s):  
Magnetic Fields ◽  
Quantum Wells ◽  
Growth Direction ◽  
Spin Splitting ◽  
G Factor

Electron Landé g factor in GaAs–(Ga,Al)As quantum wells under applied magnetic fields: Effects of Dresselhaus spin splitting

2008 ◽  
Vol 104 (2) ◽  
pp. 023704 ◽  
Author(s):  
E. Reyes-Gómez ◽  
N. Porras-Montenegro ◽  
C. A. Perdomo-Leiva ◽  
H. S. Brandi ◽  
L. E. Oliveira
Keyword(s):  
Magnetic Fields ◽  
Quantum Wells ◽  
Spin Splitting ◽  
G Factor

Zur Bandstruktur von Wismuttellurid

1968 ◽  
Vol 23 (8) ◽  
pp. 1146-1154 ◽  
Author(s):  
P. Drath
Keyword(s):  
Conduction Band ◽  
Hall Coefficient ◽  
Landau Levels ◽  
Spin Splitting ◽  
G Factor ◽  
Constant Energy ◽  
Additional Band ◽  
Shubnikov De Haas Oscillations ◽  
P Type

The analysis of Shubnikov-De Haas oscillations in n- and p-type Bi2Te3 indicate the existence of a multivalley structure of valence and conduction band. In p-type Bi2Te3 the surfaces of constant energy are found to consist of 6 ellipsoids. Spin splitting of the Landau-levels was observed, the anisotropy of the g-factor in the trigonal-bisectrix plane is consistent with an existing theory. In n-type Bi2Te3 Hall-coefficient, magnetoresistance and g-factor do not follow the predicted pattern of a simple many valley model, so that the number of ellipsoids could not be determined with certainty. The presence of an additional band must be considered.

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