High-frequency, 'quantum' and electromechanical effects in quasi-one-dimensional charge density wave conductors

Abstract

Recent results (some previously unpublished) on the physics of charge density waves (CDWs) are reviewed. The synthesis conditions and unique properties of the quasi-onedimensional compound x Q , with highly coherent room temperature CDWs, are described. A peculiar type of`quantization' is discussed, which is observed in micro-and nanosamples of K 0X3 MoO 3 and NbSe 3 due to the discrete nature of CDW wave vector values. The electric-field-induced torsional strain (TS) in quasi-one-dimensional conductors is considered. Research results on the TS of a noise character induced by sliding CDWs are presented, along with those on the inverse effect, the modulation of the voltage induced by externally driven TS. Results on the nonlinear conduction of TiS 3 , a quasi-one-dimensional compound not belonging to the family of classical Peierls conductors, are also described. Contents 4.1 Nature of the deformation of quasi-one-dimensional conductors in an electric field; 4.2 Methods of torsion studies; 4.3 Main results of torsion studies; 4.4 Torsional effects associated with the sliding of a charge density wave; 4.5 Sample vibrations during the flow of a direct charge density wave current; 4.6 Nature of torsion; 4.7 Voltage modulation induced by torsional strain 5. Nonlinear conduction in the quasi-one-dimensional conductor TiS 3 45 6. Conclusions 46 References 47 30 V Ya Pokrovskii, S G Zybtsev, M V Nikitin, I G Gorlova, V F Nasretdinova, S V Zaitsev-Zotov Physics ± Uspekhi 56 (1) January 2013High-frequency,`quantum' and electromechanical effects in quasi-one-dimensional charge density wave conductors 31

Thermal conductivity of the quasi-1D materials TaSe3 and ZrTe3

“…The low dimensionality of the MX 3 materials makes them particularly susceptible to multiple phase transitions such as superconductivity [13][14][15][16], and charge density wave (CDW) formation [17][18][19][20]. The latter has motivated extensive, prolonged research into CDW transitions [1,[21][22][23], sliding [24,25], dynamics [26][27][28][29][30], and dimensional scaling [31][32][33][34][35][36][37][38] in the metallic TMTs, and their use for device applications [39][40][41][42].…”