Vacancy Order and Physical Properties of a Ternary Compound Fe0.68Pd0.80Te with an α-Fe1+xTe-Type Structure
Abstract
We report the identification and characterization of a new compound Fe0.68Pd0.80Te with an α-Fe1+xTe prototype structure. Different from the Fe-square net and minor occupancy of interstitial Fe-sites in Fe1+xTe, Fe0.68Pd0.80Te is featured by a Pdsquare net and near 68% occupancy of the corresponding interstitial Fe-sites. Furthermore, noncontact atomic force microscopy and X-ray diffraction provide evidence for the existence of a 3*3*3 Pd-vacancy order in this layered material. A spin-glass ground state below Tg 40 K is identified via magnetic characterization. Electrical transport measurements show that Fe0.68Pd0.80Te is a semiconductor with a very small band gap below 10 meV. It has weak negative magnetoresistance and holelike charge carriers below room temperature. Our results demonstrate its potentials for further exploring various quantum phenomena.
Versions
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BibTeX
@misc{shi2026vacancy,
title = {{Vacancy Order and Physical Properties of a Ternary Compound Fe0.68Pd0.80Te with an α-Fe1+xTe-Type Structure}},
author = {Bingxian Shi and Manyu Wang and Chenglin Shang and Yanyan Geng and Yangyang Fan and Xiaoxiao Pei and Li Huang and Daye Xu and Juanjuan Liu and Jinchen Wang and Hongxia Zhang and Hongliang Wang and Lijie Hao and Rui Xu and Zhongyi Lu and Zhihai Cheng and Peng Cheng},
howpublished = {arXiv},
year = {2026},
month = sep,
doi = {10.48550/arxiv.2609.11441},
eprint = {2609.11441},
archivePrefix = {arXiv},
url = {https://arxiv.org/abs/2609.11441},
}
RIS
TY - UNPB
TI - Vacancy Order and Physical Properties of a Ternary Compound Fe0.68Pd0.80Te with an α-Fe1+xTe-Type Structure
AU - Bingxian Shi
AU - Manyu Wang
AU - Chenglin Shang
AU - Yanyan Geng
AU - Yangyang Fan
AU - Xiaoxiao Pei
AU - Li Huang
AU - Daye Xu
AU - Juanjuan Liu
AU - Jinchen Wang
AU - Hongxia Zhang
AU - Hongliang Wang
AU - Lijie Hao
AU - Rui Xu
AU - Zhongyi Lu
AU - Zhihai Cheng
AU - Peng Cheng
PY - 2026
DA - 2026/09/10
PB - arXiv
DO - 10.48550/arxiv.2609.11441
UR - https://arxiv.org/abs/2609.11441
AB - We report the identification and characterization of a new compound Fe0.68Pd0.80Te with an α-Fe1+xTe prototype structure. Different from the Fe-square net and minor occupancy of interstitial Fe-sites in Fe1+xTe, Fe0.68Pd0.80Te is featured by a Pdsquare net and near 68% occupancy of the corresponding interstitial Fe-sites. Furthermore, noncontact atomic force microscopy and X-ray diffraction provide evidence for the existence of a 3*3*3 Pd-vacancy order in this layered material. A spin-glass ground state below Tg 40 K is identified via magnetic characterization. Electrical transport measurements show that Fe0.68Pd0.80Te is a semiconductor with a very small band gap below 10 meV. It has weak negative magnetoresistance and holelike charge carriers below room temperature. Our results demonstrate its potentials for further exploring various quantum phenomena.
ER -