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Related papers: CuIr2Te4: A Quasi-Two-Dimensional Ternary Tellurid…

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Here we report the discovery of the first ternary molybdenum pnictide based superconductor K2Mo3As3. Polycrystalline samples were synthesized by the conventional solid state reaction method. X-ray diffraction analysis reveals a…

Superconductivity · Physics 2018-08-02 Qing-Ge Mu , Bin-Bin Ruan , Kang Zhao , Bo-Jin Pan , Tong Liu , Lei Shan , Gen-Fu Chen , Zhi-An Ren

A recent experimental work has reported an excess of the non-linear conductivity in the charge density wave (CDW) sliding mode of the quasi one-dimensional compound (TaSe4)2I, when a magnetic field is applied co-linearly to the electric…

Strongly Correlated Electrons · Physics 2022-03-17 A. A. Sinchenko , R. Ballou , J. E. Lorenzo , Th. Grenet , P. Monceau

The metal-metal bond in metal-rich chalcogenide is known to exhibit various structures and dominate interesting physical properties. Ta2Se can be obtained by both arc-melting and solid-state pellet methods. Ta2Se crystallizes a layered…

Superconductivity · Physics 2020-06-23 Xin Gui , Karolina Gornicka , Tomasz Klimczuk , Weiwei Xie

The emergence of a charge density wave (CDW) in a Weyl semimetal -- a correlated topological phase, is exceptionally rare in condensed matter systems. In this context, the quasi-one-dimensional type-III Weyl semimetal (TaSe$_4$)$_2$I…

We report on a transient optical reflectivity study of the charge density wave (CDW) in CuxTiSe2 single crystals. Our measurements reveal that the system undergoes a quantum phase transition at x=0.04 from a strong commensurate CDW (x<0.04)…

Strongly Correlated Electrons · Physics 2016-12-07 D. B. Lioi , R. D. Schaller , G. P. Wiederrecht , G. Karapetrov

Transition metal dichalcogenides (TMDCs) usually exhibit layered polytypic structures due to the weak interlayer coupling. 2H-NbSe2 is one of the most widely studied in the pristine TMDC family due to its high superconducting transition…

Superconductivity · Physics 2020-01-08 Dong Yan , Shu Wang , Yishi Lin , Guohua Wang , Yijie Zeng , Mebrouka Boubeche , Yuan He , Jie Ma , Yihua Wang , Dao-Xin Yao , Huixia Luo

The interplay between unconventional superconductivity and the ordering of charge/spin density wave is one of the most vital issues in both condensed matter physics and material science. The Ti-based compound BaTi_2As_2O, which can be seen…

The mechanism of superconductivity in cuprates remains one of the big challenges of condensed matter physics.High Tc cuprates crystallize into layered perovskite structure featuring copper oxygen octahedral coordination. Due to the Jahn…

Unconventional superconductivity in bulk materials under ambient pressure is extremely rare among the 3d transition metal compounds outside the layered cuprates and iron-based family. It is predominantly linked to highly anisotropic…

The quasi-one-dimensional (quasi-1D) TaSe3 attracts considerable attention for its intriguing superconductivity and possible interplay with nontrivial topology and charge density wave (CDW) state. However, unlike the isostructural…

Mesoscale and Nanoscale Physics · Physics 2019-07-16 J. Yang , Y. Q. Wang , R. R. Zhang , L. Ma , W. Liu , Z. Qu , L. Zhang , S. L. Zhang , W. Tong , L. Pi , W. K. Zhu , C. J. Zhang

We report the characterization of layered, 2H-type CuxTaS2, for x between 0 and 0.12. The charge density wave (CDW), at 70 K for TaS2, is destabilized with Cu doping. The sub-1K superconducting transition in undoped 2H-TaS2 jumps quickly to…

We explore both experimental and theoretical aspects of the superconducting properties in the distinctive layered caged compound, Ba$_{3}$Ir$_{4}$Ge$_{16}$. Our approach integrates muon spin rotation and relaxation ($\mu$SR) measurements…

The structural, elastic, and electronic properties of the very recently discovered ternary silicide superconductor, Li2IrSi3, have been calculated using ab-initio technique. We have carried out the plane-wave pseudopotential approach within…

Superconductivity · Physics 2015-05-12 M. A. Hadi , M. A. Alam , M. Roknuzzaman , M. T. Nasir , A. K. M. A. Islam , S. H. Naqib

Nonlinear transport properties are reported in the layered DyTe$_3$ compound at temperature below the charge-density-wave (CDW) transition, $T_P=302$ K. Conductivity is increasing sharply above the threshold electric field. Under…

Strongly Correlated Electrons · Physics 2015-06-05 A. A. Sinchenko , P. Lejay , P. Monceau

SrPt2As2 is a novel arsenide superconductor, which crystallizes in the CaBe2Ge2-type structure as a different polymorphic form of the ThCr2Si2-type structure. SrPt2As2 exhibits a charge-density-wave (CDW) ordering at about 470 K and enters…

Superconductivity · Physics 2010-12-14 Kazutaka Kudo , Yoshihiro Nishikubo , Minoru Nohara

Mineral calaverite AuTe2 is a layered compound with an incommensurately modulated structure. The modulation is characterized by the formation of molecular-like Te2 dimers. We have found that the breaking of Te2 dimers that occurs in…

Observation of high-temperature superconductivity in sulfur hydrides at megabar pressures has generated an irresistible wave on searching for new superconductors in other compressed hydrogen-rich compounds. An immediate effort is towards…

Superconductivity · Physics 2016-02-10 Xin Zhong , Hui Wang , Jurong Zhang , Hanyu Liu , Shoutao Zhang , Hai-Feng Song , Guochun Yang , Lijun Zhang , Yanming Ma

TaSe$_2$ has several different polytypes and abundant physical properties such as superconductivity and charge density waves (CDW), which had been investigated in the past few decades. However, there is no report on the physical properties…

Superconductivity · Physics 2018-03-14 Hua Bai , Mengmeng Wang , Xiaohui Yang , Yupeng Li , Jiang Ma , Xikang Sun , Qian Tao , Linjun Li , Zhu-An Xu

We report the discovery of superconductivity at Tc = 3.7 K in the new ternary lithium silicide Li2IrSi3. The crystal structure of Li2IrSi3 consists of IrSi6 antiprisms connected by Si triangles, giving rise to a three dimensional framework…

As a new type of topological materials, ZrTe5 shows many exotic properties under extreme conditions. Utilizing resistance and ac magnetic susceptibility measurements under high pressure, while the resistance anomaly near 128 K is completely…