Spin-zero anomaly in the magnetic quantum oscillations of a two-dimensional metal
Spin-zero anomaly in the magnetic quantum oscillations of a two-dimensional metal
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二维金属磁量子振荡中的自旋零异常
DOI:
10.1088/1367-2630/10/8/083032
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发表时间:
2008
影响因子:
3.3
通讯作者:
Wosnitza J
中科院分区:
文献类型:
--
作者:
Wosnitza J
We report on an anomalous behavior of the spin-splitting zeros in the de Haas–van Alphen (dHvA) signal of a quasi-two-dimensional organic superconductor. The zeros as well as the angular dependence of the amplitude of the second harmonic deviate remarkably from the standard Lifshitz–Kosevich (LK) prediction. In contrast, the angular dependence of the fundamental dHvA amplitude as well as the spin-splitting zeros of the Shubnikov–de Haas (SdH) signal follow the LK theory. We can explain this behavior of the dHvA signal by small chemical-potential (CP) oscillations and find a very good agreement between theory and experiment. A detailed wave-shape analysis of the dHvA oscillations corroborates the existence of an oscillating CP. We discuss the absence of the above spin-zero effect in the SdH signal and argue that in β''-(BEDT-TTF) 2 SF 5 CH 2 CF 2 SO 3 it can be explained by an incoherent variable range hopping interlayer transport which is insensitive to the small CP oscillations.
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DOI:
--
发表时间:
2005
期刊:
影响因子:
--
作者:
V. M. Gvozdikov;J. Wosnitza
通讯作者:
J. Wosnitza
DOI:
--
发表时间:
2003
期刊:
影响因子:
--
作者:
J. Wosnitza;J. Hagel;P. Meeson;D. Bintley;J. Schlueter;J. Mohtasham;R. Winter;G. L. Gard
通讯作者:
G. L. Gard
DOI:
--
发表时间:
1996
期刊:
影响因子:
--
作者:
J. Wosnitza
通讯作者:
J. Wosnitza
DOI:
--
发表时间:
1998
期刊:
影响因子:
--
作者:
D. Beckmann;S. Wanka;J. Wosnitza;J. Schlueter;J. Williams;P. Nixon;R. Winter;G. Gard;J. Ren;M. whangbo
通讯作者:
M. whangbo
影响因子:
8.6
作者:
M.;A. Ardavan;J. Symington;J. Singleton;Neil Harrison;Charles H. Mielke;J. Schlueter;R. Winter;G. L. Gard
通讯作者:
G. L. Gard