中文
相关论文

相关论文: Subtle Structural Anomaly under Compression in Lin…

200 篇论文

We report on high-pressure (p_max = 2.1 GPa) muon spin rotation experiments probing the temperature-dependent magnetic penetration depth in the layered superconductor 2H-NbSe_2. Upon increasing the pressure, we observe a substantial…

Broadening of the electron paramagnetic resonance (EPR) line of the paramagnetic probe decorated on the superconducting system surface was detected at the temperature T>Tc. The source of the anomaly and the conditions of its emergence were…

超导电性 · 物理学 2016-11-23 I. Akhvlediani , T. Kalabegishvili , N. Kekelidze , N. Margiani , N. Papunashvili

X-ray diffraction experiments under pressure in a diamond anvil cell have been performed to gauge any response of the crystalline lattice of URu2Si2 to the "hidden order" or antiferromagnetic transitions, the latter of which is accessible…

强关联电子 · 物理学 2010-09-29 J. R. Jeffries , N. P. Butch , J. J. Hamlin , S. V. Sinogeikin , W. J. Evans , M. B. Maple

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 pressure effect on the newly discovered charge-transferred BiS$_2$-based superconductor, Eu$_3$Bi$_2$S$_4$F$_4$, with a $T_c$ of 1.5 K at ambient pressure, is investigated by transport and magnetic measurements. Accompanied with the…

超导电性 · 物理学 2014-12-18 Yongkang Luo , Hui-Fei Zhai , Pan Zhang , Zhu-An Xu , Guang-Han Cao , J. D. Thompson

Recent experiments showed the distinct observations on the transition metal ditelluride NiTe$_2$ under pressure: one reported a superconducting phase transition at 12 GPa, whereas another observed a sign reversal of Hall resistivity at 16…

超导电性 · 物理学 2021-07-14 Jian-Feng Zhang , Yawen Zhao , Kai Liu , Yi Liu , Zhong-Yi Lu

The unconventional superconductivity in the noncentrosymmetric LaNiC$_2$, and its evolution with pressure, is analyzed basing on the {\it ab initio} computations and the full Eliashberg formalism. First principles calculations of the…

超导电性 · 物理学 2016-11-03 B. Wiendlocha , R. Szczęśniak , A. P. Durajski , M. Muras

CsCr$_3$Sb$_5$ is a newly identified strongly correlated kagome superconductor, characterized by non-Fermi-liquid behavior at elevated temperatures and intertwined charge- and spin-density-wave order below $T_{DW}\approx 54$K. Under…

强关联电子 · 物理学 2026-01-22 Maria Chatzieleftheriou , Jonas B. Profe , Ying Li , Roser Valentí

We performed $^{185/187}$Re nuclear quadrupole resonance (NQR) measurements under pressure to investigate the superconducting properties of noncentrosymmetric superconductor Cd$_{2}$Re$_{2}$O$_{7}$ under various crystal structures. The…

The first-order transition at $T_{\rm 0} = 270$ K for the platinum-based SrPt$_2$Sb$_2$ superconductor was investigated using X-ray diffraction and magnetic susceptibility measurements. When polycrystalline SrPt$_2$Sb$_2$ was cooled down…

超导电性 · 物理学 2016-03-31 Soshi Ibuka , Motoharu Imai

Superconductivity in topological kagome metals has recently received great research interests. Here, charge density wave (CDW) orders and the evolution of superconductivity under various pressures in CsV3Sb5 single crystal with V kagome…

We present a combined growth and transport study of superconducting single-crystalline NdO$_{0.5}$F$_{0.5}$BiS$_2$. Evidence of two-dimensional superconductivity with significant phase fluctuations of preformed Cooper pairs preceding the…

We observed superconductivity ($T_{c}$ $\simeq$2-3 K) in Li$_{x}$RhB$_{y}$ intermetallics wherein $x$ and $y$ vary over a wide compositional range. The crystal structure consists of cubic unit-cell ($a$ $\simeq$ 12.1 \AA ) with…

超导电性 · 物理学 2015-05-12 H. Takeya , M. ElMassalami , H. S. Amorim , H. Fujii , T. Mochiku , Y. Takano

We have measured the resistivity, optical conductivity, and magnetic susceptibility of LaSb$_2$ to search for clues as to the cause of the extraordinarily large linear magnetoresistance and to explore the properties of the superconducting…

强关联电子 · 物理学 2015-05-19 J. F. DiTusa , V. Guritanu , S. Guo , D. P. Young , P. W. Adams , R. G. Goodrich , J. Y. Chan , D. van der Marel

Unconventional superconductivity is a desirable state of matter due to its potential for high transition temperatures $T_{\mathrm{c}}$ and associated favorable superconducting properties. However, the sign-changing nature of the order…

The Dirac semimetal PdTe${}_2$ becomes superconducting at a temperature $T_{c}=1.6$~K. Thermodynamic and muon spin rotation experiments support type-I superconductivity, which is unusual for a binary compound. A key property of a type-I…

超导电性 · 物理学 2021-03-24 P. Garcia-Campos , Y. K. Huang , A. de Visser , K. Hasselbach

According to the Bardeen-Cooper-Schrieffer (BCS) theory, superconductivity usually needs well defined Fermi surface(s) with strong electron-phonon coupling and moderate quasiparticle density of states (DOS). A kagome lattice can host flat…

超导电性 · 物理学 2023-02-22 Qing Li , Yuxiang Wu , Xinwei Fan , Ying-Jie Zhang , Xiyu Zhu , Zhengyan Zhu , Yiwen Li , Hai-Hu Wen

This work reports superconductivity studies in the intermetallic Ti$_{0.85}$Pd$_{0.15}$ performed in normal conditions and under hydrostatic pressure. The crystal structure of the compound has a body centered cubic at room temperature and…

超导电性 · 物理学 2020-05-20 C. Reyes-Damián , F. Morales , Esmeralda Martínez-Piñeiro , Roberto Escudero

We report specific-heat and resistivity experiments performed in parallel in a Bridgman-type of pressure cell in order to investigate the nature of pressure-induced superconductivity in the iron pnictide compound CaFe2As2. The presence of a…

超导电性 · 物理学 2015-06-05 Y. Zheng , Y. Wang , B. Lv , C. W. Chu , R. Lortz

We report on the structural and superconducting properties of the intermetallic compound BaGaGe. We find that this material undergoes a structural second-order phase transition from the distorted AlB$_2$-type structure (1H, $a$ = 4.3254(2)…