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Electronic configuration of tantalum in 1T-LiTaS2 (1992)

Eibschutz, M. ; Murphy, D. W. ; Zahurak, S. ; [et al.]

Woodbury, NY : American Institute of Physics (AIP)

Applied Physics Letters 61 (1992), S. 2976-2977

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ISSN: 1077-3118

Source: AIP Digital Archive

Topics: Physics

Notes: High resolution Mössbauer effect (ME) of the 6.2 keV γ rays of 181Ta has been observed in a lithiated single crystal of 1T-LiTaS2. The isomer shift of 105.2 mm/s is 35 mm/s larger than that of 2H-TaS2 and comparable to that of 2H-LiTaS2. The ME in 1T-TaS2 is not observable because of the presence of a nearly commensurate charge density wave (CDW). The observation of the ME in 1T-LiTaS2 shows that the CDW is suppressed and also reflects a change in the electronic configuration from Ta4+ (5d1) toward Ta3+ (5d2). A value of 45 mm/s per e− has been derived for the IS change due to charge transfer from Li to Ta.

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1063/1.108036

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