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Wang, Shibing; Zhang, Jian Bo; Yan, Jinyuan; Chen, Xiao‐Jia; Struzhkin, Viktor V.; Tabiś, Wojciech; Barišić, N.; Chan, M. K.; Dorow, C. J.; Zhao, Xudong; Greven, M.; Mao, Wendy L.

doi:10.1103/physrevb.89.024515

Cited by 14 publications

(8 citation statements)

References 42 publications

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“…For pressures higher than 8 GPa, the streaks around the (±1, ±1, L) Bragg spots of the average structure In Figure 1d, we show the evolution of the resistivity with pressure. Up to 5 GPa, T c increases with a slope of 1.2 K/GPa, a value slightly lower than previously reported for nominally optimal doped samples [19,20]. This indicates that the investigated samples are probably well on the summit of the doping parabola.…”

Section: Synchrotron Measurementscontrasting

confidence: 55%

Charge Order and Suppression of Superconductivity in HgBa2CuO4+d at High Pressures

et al. 2021

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New insight into the superconducting properties of HgBa2CuO4 (Hg-1201) cuprates is provided by combined measurements of electrical resistivity and single crystal X-ray diffraction under pressure. The changes induced by increasing pressure up to 20 GPa in optimally doped single crystals were investigated. The resistivity measurements as a function of temperature show a metallic behavior up to ~10 GPa that gradually passes into an insulating state, typical of charge ordering, which totally suppresses superconductivity above 13 GPa. The changes in resistivity are accompanied by the apparition of sharp Bragg peaks in the X-ray diffraction patterns, indicating that the charge ordering is accompanied by a 3D oxygen ordering. Considering that pressure induces a charge transfer of about 0.02 at 10 GPa, our results are the first observation of charge order competing with superconductivity developed in the overdoped region of the phase diagram of a Hg-based cuprate.

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Section: Synchrotron Measurementscontrasting

confidence: 55%

Charge Order and Suppression of Superconductivity in HgBa2CuO4+d at High Pressures

et al. 2021

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“…For example, specifically strained HgBa 2 CuO 4+ δ can have almost identical CuO 6 octahedra as La 2− x Sr x CuO 4 , however, the large difference in their T c values remains62. This might be related to the different values of n d and n p for these families.…”

Section: Discussionmentioning

confidence: 99%

Perspective on the phase diagram of cuprate high-temperature superconductors

et al. 2016

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Universal scaling laws can guide the understanding of new phenomena, and for cuprate high-temperature superconductivity the influential Uemura relation showed, early on, that the maximum critical temperature of superconductivity correlates with the density of the superfluid measured at low temperatures. Here we show that the charge content of the bonding orbitals of copper and oxygen in the ubiquitous CuO2 plane, measured with nuclear magnetic resonance, reproduces this scaling. The charge transfer of the nominal copper hole to planar oxygen sets the maximum critical temperature. A three-dimensional phase diagram in terms of the charge content at copper as well as oxygen is introduced, which has the different cuprate families sorted with respect to their maximum critical temperature. We suggest that the critical temperature could be raised substantially if one were able to synthesize materials that lead to an increased planar oxygen hole content at the expense of that of planar copper.

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“…Single-crystal XRD measurements provided evidence for the existence of oxygen ordering, which indicates that P-induced oxygen ordering suppresses superconductivity in cuprates. The measurements of the superconducting and structural properties on an underdoped Hg1201 revealed almost the same increase in the T c with P compared to the optimally doped compound (Wang, et al 2014). The copper and oxygen bond distances alone were inadequate for explaining the large difference in the T c between the optimally doped Hg1201 and La 2-x Sr x CuO 4 .…”

Section: Cuprate Superconductorsmentioning

confidence: 89%

Solids, liquids, and gases under high pressure

et al. 2018

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Pressure has long been recognized as a fundamental thermodynamic variable but its application was previously limited by the available pressure vessels and probes. The development of megabar diamond anvil cells and a battery of associated in-laboratory and synchrotron techniques at the turn of the century have opened a vast new window of opportunities. With the addition of the pressure dimension, we are facing a new world with an order of magnitude more materials to be discovered than all that have been explored at ambient pressure. Pressure drastically and categorically alters all elastic, electronic, magnetic, structural, and chemical properties, and pushes materials across conventional barriers between insulators and superconductors, amorphous and crystalline solids, ionic and covalent compounds, vigorously reactive and inert chemicals, etc. In the process, it reveals surprising high-pressure physics and chemistry and creates novel materials. This review describes the principles and methodology used to reach ultrahigh static pressure; the in situ probes, the physical phenomena to be investigated, the longpursued goals, the surprising discoveries, and the vast potential opportunities. Exciting examples include the quest for metallic hydrogen, the record-breaking superconducting temperature of 203 K in HnS, the complication of "free electron gas" alkali metals, the magnetic collapse in 3d transition elements, the pressure-induced topological superconductors, the novel stoichiometry in simple compounds, the interaction of nanoscience, the accomplishment of 750 GPa pressure, etc. These highlights are the integral results of technological achievements, specific measurements, and theoretical advancement; therefore, the same highlights will appear in different sections corresponding to these different aspects. Overall, this review demonstrates that highpressure research is a new dimension in condensed-matter physics. III. Multiple Probes for High P-T In Situ Characterizations A. High-P optical absorptive and reflective microscopy and spectroscopy B. High-P inelastic optical scattering 1. High-P optical Raman spectroscopy 2. High-P Brillouin spectroscopy B. P-induced amorphization and its size dependence C. P-induced devitrification D. P-induced polyamorphism and liquid-liquid transition V. "Simple" 1s Electron Systems Under Compression A. The quest for metallic hydrogen B. The rich high P-T phase diagram of hydrogen C. Helium-the widest-gap insulator VI. P-Effects on Electron Bonding Structures A. P-effects on s, p-electron bonding B. Compressional behavior of free electron gas C. P-induced Fermi surface nesting VII. High-P Studies on d-Electron Systems A. Spin-pairing transition B. Mott insulator to metal transition C. Magnetic ordering transition D. Spin-liquid transition E. Phase separation and colossal magnetoresistence in manganites VIII. High-P Studies on f-Electron Systems A. Volume collapse and mixed valences in f-electron materials B. Quantum criticality and quantum phase transition C. f-electron Superconduct...

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Strain derivatives ofTcin HgBa2CuO4+δ: The CuO
Shibing Wang
¹
,
Jian Bo Zhang
²
,
Jinyuan Yan
³

et al.

Cited by 14 publications

References 42 publications

Charge Order and Suppression of Superconductivity in HgBa2CuO4+d at High Pressures

Charge Order and Suppression of Superconductivity in HgBa2CuO4+d at High Pressures

Perspective on the phase diagram of cuprate high-temperature superconductors

Solids, liquids, and gases under high pressure

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Strain derivatives ofTcin HgBa2CuO4+δ: The CuOShibing Wang1, Jian Bo Zhang2, Jinyuan Yan3 et al.

Cited by 14 publications

References 42 publications

Charge Order and Suppression of Superconductivity in HgBa2CuO4+d at High Pressures

Charge Order and Suppression of Superconductivity in HgBa2CuO4+d at High Pressures

Perspective on the phase diagram of cuprate high-temperature superconductors

Solids, liquids, and gases under high pressure

Contact Info

Product

Resources

About

Strain derivatives ofTcin HgBa2CuO4+δ: The CuO
Shibing Wang
¹
,
Jian Bo Zhang
²
,
Jinyuan Yan
³

et al.