Pressure effects on superconductivity and anomalous transition in triangular lattice CuIr<sub>2</sub>Te<sub>4</sub>
POSTER
Abstract
Geometrical spin-frustrated systems play an important role in condensed matter physics. Recently, a proposed charge-density-wave (CDW) along with superconductivity (SC) in CuIr2Te4 was reported [1] through the resistivity and magnetization measurements. It motivated us to further study the competitions between CDW and SC under external hydrostatic pressure. The CuIr2Te4 was synthesized by the solid-state reaction method and characterized using X-ray diffraction (XRD) and magnetization measurements. XRD pattern confirmed the major phase of CuIr2Te4 and the anomalous transition (Ts ~ 200 K) along with SC transition below Tc ~ 3 K in zero-field-cooling cycle was observed. The preliminary results are in agreement with the previous report [1]. Under the external pressure, both transitions (Ts and Tc) exhibit a systematic change, suggesting that a significant competition between anomalous transition and SC occurs in CuIr2Te4. The nature of anomalous transition in CuIr2Te4 will be discussed.
Reference:
[1] Dong Yan et al., CuIr2Te4: A Quasi-Two-Dimensional Ternary Telluride Chalcogenide Superconductor, arXiv:1908.05438.
Reference:
[1] Dong Yan et al., CuIr2Te4: A Quasi-Two-Dimensional Ternary Telluride Chalcogenide Superconductor, arXiv:1908.05438.
*MOST:106-2112-M-110 -013 -MY3
Presenters
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Hung-Duen Yang
- Physics, National Sun Yat-sen University
- Department of Physics, National Sun Yat-sen University, Kaohsiung, 80424, Taiwan
- Department of Physics, National Sun Yat-sen University
- Department of Physics, National Sun Yat-sen University, Kaohsiung 804, Taiwan
- Natl Sun Yat Sen Univ
- Department of Physics, National Sun Yat-sen University, Taiwan