Angular dependent magnetothermopower of α-(ET)2KHg(SCN)4

The angular dependent magnetoresistance in α-(BEDT- TTF)2KHg(SCN)4

– In spite of extensive experimental studies of the angular dependent magnetoresistance (ADMR) of the low temperature phase (LTP) of α-(BEDT-TTF)2KHg(SCN)4 about a decade ago, the nature of LTP remains elusive. Here we present a new study of ADMR of LTP in α−(ET)2 salts assuming that LTP is unconventional charge density wave (UCDW). In the presence of magnetic field the quasiparticle spectrum i...

Temperature and Angular Dependence of the Magnetoresistance in Low Dimensional Organic Metals

Detailed studies of the magnetoresistance of α-(ET)2KHg(SCN)4 and α(ET)2TlHg(SCN)4 as a function of temperature, magnetic field strength, and field orientation are reported. Below 15 K, the temperature dependence of the magnetoresistance is metallic (dR/dT > 0) for magnetic field orientation corresponding to an angular dependent magnetoresistance oscillation (AMRO) minimum and nonmetallic (dR/d...

Experimental observation of Fröhlich superconductivity in high magnetic fields

Resistivity and irreversible magnetisation data taken within the high magnetic field CDWx phase of the quasi-two-dimnesional organic metal α-(BEDT-TTF)2KHg(SCN)4 are shown to be consistent with a field-induced inhomogeneous superconducting phase. In-plane skin depth measurements show that the resistive transition on entering the CDWx phase is both isotropic and representative of the bulk. Prior...

Interplay of the spin-density-wave state and magnetic field in the organic conductor alpha -(BEDT-TTF)2KHg(SCN)4.

Aspects of unconventional density waves

Recently many people discuss unconventional density waves (i.e. unconventional charge density waves (UCDW) and unconventional spin density waves (USDW)). Unlike in conventional density waves, the quasiparticle spectrum in these systems is gapless. Also these systems remain metallic. Indeed it appears that there are many candidates for UDW. The low temperature phase of α-(BEDT-TTF)2KHg(SCN)4, th...