Transition metal dichalcogenides attract considerable attention due to a variety of interesting properties, including long-range magnetism in nanocrystals. Here we investigate the magnetic, thermal, and electrical properties of an FeTe2 single crystal with iron vacancy defects. Magnetic measurements show a paramagnetic state and the absence of magnetic order with low anisotropy in the magnetic susceptibility. Fe 3d orbitals are well hybridized, contributing to the bad metal electrical resistivity. Observed thermal conductivity values below room temperature are rather low and comparable to those of high-performance thermoelectric materials. Our results indicate that FeTe2 can form in a highly defective marcasite crystal structure which can be exploited in future materials design.
Извор:
Physical Review B, 2021, 104, 22, 224109-
Финансирање / пројекти:
Ministry of Education, Science & Technological Development, Serbia
United States Department of Energy (DOE) [DE-SC0012704, DE-SC0008885 (BNL)]
Faculty Training Abroad Program of Henan University
TY - JOUR
AU - Tian, Jianjun
AU - Ivanovski, Valentin N.
AU - Abeykoon, Milinda
AU - Martin, Rodica M.
AU - Baranets, Sviatoslav
AU - Martin, Catalin
AU - Liu, Yu
AU - Du, Qianheng
AU - Wang, Aifeng
AU - Chen, Shuzhang
AU - Tong, Xiao
AU - Zhang, Weifeng
AU - Bobev, Svilen
AU - Koteski, Vasil J.
AU - Petrović, Čedomir
PY - 2021
UR - https://vinar.vin.bg.ac.rs/handle/123456789/10108
AB - Transition metal dichalcogenides attract considerable attention due to a variety of interesting properties, including long-range magnetism in nanocrystals. Here we investigate the magnetic, thermal, and electrical properties of an FeTe2 single crystal with iron vacancy defects. Magnetic measurements show a paramagnetic state and the absence of magnetic order with low anisotropy in the magnetic susceptibility. Fe 3d orbitals are well hybridized, contributing to the bad metal electrical resistivity. Observed thermal conductivity values below room temperature are rather low and comparable to those of high-performance thermoelectric materials. Our results indicate that FeTe2 can form in a highly defective marcasite crystal structure which can be exploited in future materials design.
T2 - Physical Review B
T1 - Absence of long-range magnetic order in Fe1−δ Te2 (δ ≈ 0.1) crystals
VL - 104
IS - 22
SP - 224109
DO - 10.1103/PhysRevB.104.224109
ER -
@article{
author = "Tian, Jianjun and Ivanovski, Valentin N. and Abeykoon, Milinda and Martin, Rodica M. and Baranets, Sviatoslav and Martin, Catalin and Liu, Yu and Du, Qianheng and Wang, Aifeng and Chen, Shuzhang and Tong, Xiao and Zhang, Weifeng and Bobev, Svilen and Koteski, Vasil J. and Petrović, Čedomir",
year = "2021",
abstract = "Transition metal dichalcogenides attract considerable attention due to a variety of interesting properties, including long-range magnetism in nanocrystals. Here we investigate the magnetic, thermal, and electrical properties of an FeTe2 single crystal with iron vacancy defects. Magnetic measurements show a paramagnetic state and the absence of magnetic order with low anisotropy in the magnetic susceptibility. Fe 3d orbitals are well hybridized, contributing to the bad metal electrical resistivity. Observed thermal conductivity values below room temperature are rather low and comparable to those of high-performance thermoelectric materials. Our results indicate that FeTe2 can form in a highly defective marcasite crystal structure which can be exploited in future materials design.",
journal = "Physical Review B",
title = "Absence of long-range magnetic order in Fe1−δ Te2 (δ ≈ 0.1) crystals",
volume = "104",
number = "22",
pages = "224109",
doi = "10.1103/PhysRevB.104.224109"
}
Tian, J., Ivanovski, V. N., Abeykoon, M., Martin, R. M., Baranets, S., Martin, C., Liu, Y., Du, Q., Wang, A., Chen, S., Tong, X., Zhang, W., Bobev, S., Koteski, V. J.,& Petrović, Č.. (2021). Absence of long-range magnetic order in Fe1−δ Te2 (δ ≈ 0.1) crystals. in Physical Review B, 104(22), 224109.
https://doi.org/10.1103/PhysRevB.104.224109
Tian J, Ivanovski VN, Abeykoon M, Martin RM, Baranets S, Martin C, Liu Y, Du Q, Wang A, Chen S, Tong X, Zhang W, Bobev S, Koteski VJ, Petrović Č. Absence of long-range magnetic order in Fe1−δ Te2 (δ ≈ 0.1) crystals. in Physical Review B. 2021;104(22):224109.
doi:10.1103/PhysRevB.104.224109 .
Tian, Jianjun, Ivanovski, Valentin N., Abeykoon, Milinda, Martin, Rodica M., Baranets, Sviatoslav, Martin, Catalin, Liu, Yu, Du, Qianheng, Wang, Aifeng, Chen, Shuzhang, Tong, Xiao, Zhang, Weifeng, Bobev, Svilen, Koteski, Vasil J., Petrović, Čedomir, "Absence of long-range magnetic order in Fe1−δ Te2 (δ ≈ 0.1) crystals" in Physical Review B, 104, no. 22 (2021):224109,
https://doi.org/10.1103/PhysRevB.104.224109 . .
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