Numerical model of quantum oscillations in quasi-two-dimensional organic metals in high magnetic fields

1996 ◽  
Vol 54 (14) ◽  
pp. 9977-9987 ◽  
Author(s):  
N. Harrison ◽  
R. Bogaerts ◽  
P. H. P. Reinders ◽  
J. Singleton ◽  
S. J. Blundell ◽  
...  
Keyword(s):  
Numerical Model ◽  
Magnetic Fields ◽  
High Magnetic Fields ◽  
Two Dimensional ◽  
Quantum Oscillations ◽  
Organic Metals

scholarly journals Unusual magnetic quantum oscillations in organic metals at high magnetic fields

2001 ◽  
Vol 294-295 ◽  
pp. 442-446 ◽  
Author(s):  
J. Wosnitza ◽  
S. Wanka ◽  
J. Hagel ◽  
J.S. Qualls ◽  
J.S. Brooks ◽  
...  
Keyword(s):  
Magnetic Fields ◽  
High Magnetic Fields ◽  
Quantum Oscillations ◽  
Organic Metals ◽  
Magnetic Quantum Oscillations

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).

Magneto-optical effects of excitons inBiI3crystals under pulsed high magnetic fields. II. Excitons localized at two-dimensional defects

1993 ◽  
Vol 48 (8) ◽  
pp. 5095-5104 ◽  
Author(s):  
T. Komatsu ◽  
K. Koike ◽  
Y. Kaifu ◽  
S. Takeyama ◽  
K. Watanabe ◽  
...  
Keyword(s):  
Magnetic Fields ◽  
High Magnetic Fields ◽  
Two Dimensional ◽  
Optical Effects
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