常压下,1T-TaS2 (1T phase Tantalum Disulfide)在温度高于550 K时是金属相;而低于550 K时是非公度CDW相 (Incommensurate Charge Density Waves, ICCDW)。而低于350 K时体现出的是近似公度的CDW相;当温度降低到180 K一下时,显示出包含一种Mott相的公度CDW相 (CCDW)。其层间相互作用力是范德华(van der Waals)相互作用。1T-TaS2 属于第五族过渡金属二卤化物( Transition Metal Dichalcogenides TMDC)。TaS2还有另一种相是2H相,详情请参考2H-TaS2.
我们提供的1T-TaS2尺寸直径6 -8 mm。
1T-TaS2 crystal properties
Crystal size | ~8 mm |
Electrical properties | Semiconductor, Charge density waves (CDW) system, Mott phase |
Crystal structure | hexagonal |
Unit cell parameters | a = b = 0.336 nm, c = 0.590 nm, α = β = 90°, γ = 120° |
Type | Synthetic |
Purity | >99.995 % |
Characterized by | XRD, Raman, EDX |