Home > Publications database > Stacking faults in α−RuCl3 revealed by local electric polarization > print

001     892556
005     20220221143523.0
024 7 _ |a 10.1103/PhysRevB.103.174413
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024 7 _ |a 2469-9977
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100 1 _ |a Mi, Xinrun
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245 _ _ |a Stacking faults in α−RuCl3 revealed by local electric polarization
260 _ _ |a Woodbury, NY
|c 2021
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336 7 _ |a article
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520 _ _ |a We present out-of-plane dielectric and magnetodielectric measurements of single-crystalline α−RuCl3 with various degrees of stacking faults. A frequency-dependent, but field-independent, dielectric anomaly appears at TA(f=100kHz)∼4 K once both magnetic transitions at TN1∼7 K and TN2∼14 K set in. The observed dielectric anomaly is attributed to the emergence of possible local electric polarizations whose inversion symmetry is broken by inhomogeneously distributed stacking faults. A field-induced intermediate phase is only observed when a magnetic field is applied perpendicular to the Ru-Ru bonds for samples with minimal stacking faults. Less pronounced in-plane anisotropy is found in samples with a sizable contribution from stacking imperfections. Our findings suggest that dielectric measurement is a sensitive probe in detecting the structural and magnetic properties, which may be a promising tool, especially in studying α−RuCl3 thin-film devices. Moreover, the stacking details of RuCl3 layers strongly affect the ground state both in the magnetic and electric channels. Such a fragile ground state against stacking faults needs to be overcome for realistic applications utilizing the magnetic and/or electric properties of Kitaev-based physics in α−RuCl3.
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700 1 _ |a Wang, Xiao
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700 1 _ |a Gui, Hengrui
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700 1 _ |a Pi, Maocai
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700 1 _ |a Zheng, Tingting
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700 1 _ |a Yang, Kunya
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700 1 _ |a Gan, Yuhan
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700 1 _ |a Wang, Peipei
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700 1 _ |a Li, Alei
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700 1 _ |a Wang, Aifeng
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700 1 _ |a Zhang, Liyuan
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700 1 _ |a Su, Yixi
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700 1 _ |a Chai, Yisheng
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700 1 _ |a He, Mingquan
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773 _ _ |a 10.1103/PhysRevB.103.174413
|g Vol. 103, no. 17, p. 174413
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856 4 _ |u https://juser.fz-juelich.de/record/892556/files/PhysRevB.103.174413.pdf
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856 4 _ |u https://juser.fz-juelich.de/record/892556/files/su_stacking_faults_210413637.pdf
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