Charge-stripe order and superconductivity in Ir1-xPtxTe2

O. Ivashko, L. Yang, D. Destraz, E. Martino, Y. Chen, C. Y. Guo, H. Q. Yuan, A. Pisoni, P. Matus, S. Pyon, K. Kudo, M. Nohara, L. Forró, H. M. Rønnow, M. Hücker, M. V. Zimmermann, J. Chang

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4 Citations (Scopus)

Abstract

A combined resistivity and hard x-ray diffraction study of superconductivity and charge ordering in Ir Ir1-xPtxTe2, as a function of Pt substitution and externally applied hydrostatic pressure, is presented. Experiments are focused on samples near the critical composition x c ∼ 0.045 where competition and switching between charge order and superconductivity is established. We show that charge order as a function of pressure in Ir0.95Pt0.05Te2 is preempted - and hence triggered - by a structural transition. Charge ordering appears uniaxially along the short crystallographic (1, 0, 1) domain axis with a (1/5, 0, 1/5) modulation. Based on these results we draw a charge-order phase diagram and discuss the relation between stripe ordering and superconductivity.

Original languageEnglish
Article number17157
JournalScientific reports
Volume7
Issue number1
DOIs
Publication statusPublished - Dec 1 2017

ASJC Scopus subject areas

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    Ivashko, O., Yang, L., Destraz, D., Martino, E., Chen, Y., Guo, C. Y., Yuan, H. Q., Pisoni, A., Matus, P., Pyon, S., Kudo, K., Nohara, M., Forró, L., Rønnow, H. M., Hücker, M., Zimmermann, M. V., & Chang, J. (2017). Charge-stripe order and superconductivity in Ir1-xPtxTe2. Scientific reports, 7(1), [17157]. https://doi.org/10.1038/s41598-017-16945-7