Magnetic resonances in the quasi-2D organic conductor (BEDT-TTF)2KHg(SCN)4
Demishev S. V. , Sluchanko N. E., Semeno A. V. , Samarin N. A.
The structure of magnetic resonances in the quasi-2D organic metal (BEDT-TTF)2KHg(SCN)4 has been found to be a complex superposition of spin resonances. Included among these resonances are an antiferromagnetic resonance and an electron spin resonance involving conduction electrons. There is also a cyclotron resonance of 2D carriers with effective mass of 2.38w0, 2.8/n0, and 3.29m0. These values are larger by a factor of 1.4-1.6 than the effective masses found from the Shubnikov-de Haas effect. The difference may be due to strong Fermi-liquid effects.© 1995 American Institute of Physics.