论文信息 - NMR study of 181Ta in the commensurate charge density wave state of 1T-TaSe2 and 1T-TaS2

NMR study of 181Ta in the commensurate charge density wave state of 1T-TaSe2 and 1T-TaS2

The 181Ta NMR in 1T-TaSe2 and 1T-TaS2 has been studied at 4.2K using single crystals as well as powders in order to obtain detailed information of the superlattice structure in the commensurate charge density wave state. The results are discussed on the basis of the star-shaped cluster model and an effect due to the three-dimensional (3D) order of clusters is pointed out.

S. Tanaka | M. Naito | H. Nishihara

[1] R. Frindt,et al. Powder spectra of 181Ta NMR in 2HTaS2 , 1982 .

[2] T. Butz,et al. A search for inequivalent lattice sites in the charge density wave distorted phases of 1T-TaS2 , 1979 .

[3] R. Pollak,et al. Charge density waves in layered metals observed by X-ray photoemission , 1976 .

[4] J. Wilson,et al. Charge-density waves and superlattices in the metallic layered transition metal dichalcogenides , 1975 .

[5] M. Cohen. Nuclear Quadrupole Spectra in Solids , 1954 .

[6] K. Fung,et al. Application of convergent beam electron diffraction to study the stacking of layers in transition-metal dichalcogenides , 1980 .

[7] F. Jellinek,et al. The low-temperature superstructures of 1T-TaSe2 and 2H-TaSe2 , 1980 .

[8] E. Tosatti,et al. Charge carrier localization in pure and doped 1T-TaS2 , 1979 .

[9] L. Pfeiffer,et al. Charge density waves observed by181Ta Mössbauer effect , 1978 .