Pair-breaking effect caused by the anion disorder in the magnetic-field-induced spin-density wave: A calorimetric study

1994 ◽  
Vol 49 (21) ◽  
pp. 15110-15121 ◽  
Author(s):  
F. Tsobnang ◽  
F. Pesty ◽  
P. Garoche
Keyword(s):  
Magnetic Field ◽  
Spin Density ◽  
Density Wave ◽  
Spin Density Wave ◽  
Calorimetric Study ◽  
Pair Breaking ◽  
Breaking Effect ◽  
The Magnetic Field

High magnetic field NMR investigation of the spin density wave phase of TMTSF2PF6

2002 ◽  
Vol 12 (9) ◽  
pp. 389-389
Author(s):  
W. G. Clark ◽  
F. Zamborsky ◽  
B. Alavi ◽  
P. Vonlanthen ◽  
W. Moulton ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Spin Density ◽  
Density Wave ◽  
Spin Density Wave ◽  
Proton Relaxation ◽  
High Magnetic Fields ◽  
Organic Conductor ◽  
First Order ◽  
The Magnetic Field ◽  
Very High

We report proton NMR measurements of the effect of very high magnetic fields up to 44.7 T (1.9 GHz) on the spin density wave (SDW) transition of the organic conductor TMTSF2PF6. Up to 1.8 GHz, no effect of critical slowing close to the transition is seen on the proton relaxation rate (1/T1), which is determined by the SDW fluctuations associated with the phase transition at the NMR frequency. Thus, the correlation time for such fluctuations is less than $1O^{-10}$s. A possible explanation for the absence of longer correlation times is that the transition is weakly first order, so that the full critical divergence is never achieved. The measurements also show a dependence of the transition temperature on the orientation of the magnetic field and a quadratic dependence on its magnitude that agrees with earlier transport measurements at lower fields. The UCLA part of this work was supported by NSF Grant DMR-0072524.

Magnetic Evidence for Reentrant Field-Induced Spin Density Waves

1989 ◽  
Vol 173 ◽  
Author(s):  
M. J. Naughton ◽  
R. V. Chamberlin ◽  
X. Yan ◽  
P. M. Chaikin ◽  
L. Y. Chiang
Keyword(s):  
Magnetic Field ◽  
Spin Density ◽  
High Field ◽  
Density Wave ◽  
Spin Density Wave ◽  
Metallic Phase ◽  
Wave State ◽  
T Phase ◽  
Resistance Data ◽  
The Magnetic Field

ABSTRACTHigh magnetic field (to 31T) d.c. magnetization measurements on the quasi-one dimensional organic conductor (TMTSF) 2ClO4 yield thermodynamic evidence for the reentrance of a metallic phase from the magnetic field-induced spin density wave state. The H-T phase diagram developed previously from magnetotransport measurements is reproduced from 8 to 26 tesla. The reentrance occurs as a sharp collapse of M(H) to (near) zero magnetization in the high field metal phase. For fields above 27 tesla, deHaas-van Alphen-like oscillations appear, similar to earlier resistance data, as well as other features possibly signifying multiple transitions in the very high field regime.

Non-ohmic conduction in the magnetic field induced spin density wave state

1989 ◽  
Vol 29 (2-3) ◽  
pp. 305-312
Author(s):  
Toshihito Osada ◽  
Noboru Miura ◽  
Gunji Saito
Keyword(s):  
Magnetic Field ◽  
Spin Density ◽  
Density Wave ◽  
Spin Density Wave ◽  
Ohmic Conduction ◽  
Wave State ◽  
The Magnetic Field

PECULIARITIES OF ELECTRONIC PARAMAGNETISM IN ANTIFERROMAGNETS

1989 ◽  
Vol 03 (12) ◽  
pp. 945-948
Author(s):  
S. BRAZOVSKII ◽  
I. LUKJANCHUK ◽  
R. RAMAZASHVILI
Keyword(s):  
Magnetic Field ◽  
Spin Density ◽  
Density Wave ◽  
Spin Density Wave ◽  
Electronic States ◽  
Localized States ◽  
Zone Boundary ◽  
Superconducting Cuprates ◽  
The Magnetic Field

The continuous and localized states of electrons in antiferromagnets (AFM) are studied in the presence of the magnetic field or the intrinsic magnetization. Peculiar features of both the Pauli and Curie susceptibilities are found. They may be tested in all intrinsic AFM with residual carriers like spin density wave (SDW) compounds, superconducting cuprates and also in s-f systems if their relevant electronic states are close to the reduced magnetic zone boundary (MZB).

Magnetic-field behavior of the spin-density-wave state in (TMTSF)2AsF6

1995 ◽  
Vol 52 (22) ◽  
pp. 15983-15991 ◽  
Author(s):  
J. L. Musfeldt ◽  
M. Poirier ◽  
P. Batail ◽  
C. Lenoir
Keyword(s):  
Magnetic Field ◽  
Spin Density ◽  
Density Wave ◽  
Spin Density Wave ◽  
Wave State ◽  
Field Behavior
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