2007/02/28 by A. F. Bangura, P. A. Goddard, Paul Goddard +11 · 20 citations
Chemistry · Materials Science · Physics and Astronomy · #Chemistry #Condensed matter physics #Hydrostatic pressure #Magnetic field #Magnetism in coordination complexes #Magnetoresistance #Organic and Molecular Conductors Research #Oscillation (cell signaling) #Physics #Physics of Superconductivity and Magnetism #Quantum mechanics #Semiclassical physics #Superconductivity #Thermodynamics #cond-mat.str-el #cond-mat.supr-con
paper · pdf · doi:10.1103/physrevb.76.052510
published in Physical Review B 76(5) (American Physical Society) · 4 pages, 3 figures Version 2
openalex publication_date 2007/08/23 · arxiv created 2007/12/17 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
We present experimental evidence for a hitherto unconfirmed type of angle-dependent magnetoresistance oscillation caused by magnetic breakdown. The effect was observed in the organic superconductor \ensuremathκ\text\ensuremath-(BEDT\text\ensuremath-TTF)2Cu(NCS)2 using hydrostatic pressures of up to 9.8\phantom\rule0.3em0exkbar and magnetic fields of up to 33\phantom\rule0.3em0exT. In addition, we show that similar oscillations are revealed in ambient-pressure measurements, provided that the Shubnikov--de Haas oscillations are suppressed either by elevated temperatures or filtering of the data. These results provide a compelling validation of Pippard's semiclassical picture of magnetic breakdown [Philos. Trans. R. Soc. London, Ser. A 270, 1 (1962)].