  At least four two- or quasi-one- dimensional allotropes and a mixture of them
were theoretically predicted or experimentally observed for low-dimensional Te,
namely the {\alpha}, \b{eta}, {\gamma}, {\delta} and chiral-{\alpha}+{\delta}
phases. Among them the {\gamma} and {\alpha} phases were found the most stable
phases for monolayer and thicker layers, respectively. Here, we found two novel
low-dimensional phases, namely the {\epsilon} and {\zeta} phases. The {\zeta}
phase is over 29 meV/Te more stable than and the {\epsilon} phase shows
comparable stability with the most stable monolayer {\gamma} phase. The
energetic difference between the {\zeta} and {\alpha} phases reduces with
respect to the increased layer thickness and vanishes at the four-layer
(12-sublayer) thickness, while this thickness increases under change doping.
Both {\epsilon} and {\zeta} phases are metallic chains and layers,
respectively. The {\zeta} phase, with very strong interlayer coupling, shows
quantum well states in its layer-dependent bandstructures. These results
provide significantly insight into the understanding of polytypism in Te
few-layers and may boost tremendous studies on properties of various few-layer
phases.
