Nematic fluctuations in an orbital selective superconductor Fe1+yTe1−xSex
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Nematic fluctuations in an orbital selective superconductor Fe1+yTe1−xSex. / Jiang, Qianni; Shi, Yue; Christensen, Morten H.; Sanchez, Joshua J.; Huang, Bevin; Lin, Zhong; Liu, Zhaoyu; Malinowski, Paul; Xu, Xiaodong; Fernandes, Rafael M.; Chu, Jiun Haw.
I: Communications Physics, Bind 6, Nr. 1, 39, 01.03.2023.Publikation: Bidrag til tidsskrift › Tidsskriftartikel › Forskning › fagfællebedømt
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TY - JOUR
T1 - Nematic fluctuations in an orbital selective superconductor Fe1+yTe1−xSex
AU - Jiang, Qianni
AU - Shi, Yue
AU - Christensen, Morten H.
AU - Sanchez, Joshua J.
AU - Huang, Bevin
AU - Lin, Zhong
AU - Liu, Zhaoyu
AU - Malinowski, Paul
AU - Xu, Xiaodong
AU - Fernandes, Rafael M.
AU - Chu, Jiun Haw
N1 - Publisher Copyright: © 2023, The Author(s).
PY - 2023/3/1
Y1 - 2023/3/1
N2 - Fe1+yTe1−xSex is characterized by its complex magnetic phase diagram and highly orbital-dependent band renormalization. Despite this, the behavior of nematicity and nematic fluctuations, especially for high tellurium concentrations, remains largely unknown. Here we present a study of both B1g and B2g nematic fluctuations in Fe1+yTe1−xSex (0 ≤ x ≤ 0.53) using the technique of elastoresistivity measurement. We discovered that the nematic fluctuations in two symmetry channels are closely linked to the corresponding spin fluctuations, confirming the intertwined nature of these two degrees of freedom. We also revealed an unusual temperature dependence of the nematic susceptibility, which we attributed to a loss of coherence of the dxy orbital. Our results highlight the importance of orbital differentiation on the nematic properties of iron-based materials.
AB - Fe1+yTe1−xSex is characterized by its complex magnetic phase diagram and highly orbital-dependent band renormalization. Despite this, the behavior of nematicity and nematic fluctuations, especially for high tellurium concentrations, remains largely unknown. Here we present a study of both B1g and B2g nematic fluctuations in Fe1+yTe1−xSex (0 ≤ x ≤ 0.53) using the technique of elastoresistivity measurement. We discovered that the nematic fluctuations in two symmetry channels are closely linked to the corresponding spin fluctuations, confirming the intertwined nature of these two degrees of freedom. We also revealed an unusual temperature dependence of the nematic susceptibility, which we attributed to a loss of coherence of the dxy orbital. Our results highlight the importance of orbital differentiation on the nematic properties of iron-based materials.
U2 - 10.1038/s42005-023-01154-8
DO - 10.1038/s42005-023-01154-8
M3 - Journal article
AN - SCOPUS:85149376237
VL - 6
JO - Communications Physics
JF - Communications Physics
SN - 2399-3650
IS - 1
M1 - 39
ER -
ID: 398067699