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Both Nb$_3$Pd$_x$Se$_7$ and Ta$_4$Pd$_3$Te$_{16}$ crystallize in a monoclinic point group while exhibiting superconducting transition temperatures as high as $T_c\sim 3.5$ and $\sim 4.7 $ K, respectively. Disorder was claimed to lead to the…

超导电性 · 物理学 2016-09-21 Q. R. Zhang , D. Rhodes , B. Zeng , M. D. Johannes , L. Balicas

Recently, A2B3 type strong spin orbital coupling compounds such as Bi2Te3, Bi2Se3 and Sb2Te3 were theoretically predicated to be topological insulators and demonstrated through experimental efforts. The counterpart compound Sb2Se3 on the…

BaNi$_2$As$_2$, a non-magnetic superconductor counterpart to BaFe$_2$As$_2$, has been shown to develop nematic order, multiple charge orders, and a dramatic six-fold enhancement of superconductivity via isovalent chemical substitution of Sr…

Superconductivity of transition metal dichalcogenide $1T$-TiTe$_2$ under high pressure was investigated by the first-principles calculations. Our results show that the superconductivity of $1T$-TiTe$_2$ exhibits very different behavior…

超导电性 · 物理学 2017-04-27 R. C. Xiao , W. J. Lu , D. F. Shao , J. Y. Li , M. J. Wei , H. Y. Lv , P. Tong , X. B. Zhu , Y. P. Sun

We studied the evolution of superconductivity (sc) and antiferromagnetism (afm) in the heavy fermion compound CePt_3Si with hydrostatic pressure. We present a pressure-temperature phase diagram established by electrical transport…

强关联电子 · 物理学 2009-09-29 M. Nicklas , G. Sparn , R. Lackner , E. Bauer , F. Steglich

Motivated by the recent discovery of near-room temperature superconductivity in high-pressure superhydrides, we investigate from first-principles the high-pressure superconducting phase diagram of the ternary Ca-B-H system, using ab-initio…

超导电性 · 物理学 2020-08-26 Simone Di Cataldo , Wolfgang von der Linden , Lilia Boeri

We have constructed a pressure$-$temperature ($P-T$) phase diagram of $P$-induced superconductivity in EuFe$_2$As$_2$ single crystals, via resistivity ($\rho$) measurements up to 3.2 GPa. As hydrostatic pressure is applied, an…

The interplay of superconductivity with electronic and structural instabilities on the kagome lattice provides a fertile ground for the emergence of unusual phenomena. The vanadium-based kagome metals $A$V$_3$Sb$_5$ ($A=$ K, Rb, Cs) exhibit…

Gallium (Ga) displays several metastable phases. Superconductivity is strongly enhanced in the metastable $\mathrm{\beta}$-Ga with a critical temperature $T_\mathrm{c}= 6.04(5)\,\mathrm{K}$, while stable $\mathrm{\alpha}$-Ga has a much…

超导电性 · 物理学 2018-06-06 D. Campanini , Z. Diao , A. Rydh

Here we present a systematic study of the effects of pressure on the superconducting and spin/charge density wave (SDW/CDW) transitions of Ba$_{1-x}$Na$_x$Ti$_2$Sb$_2$O (x = 0, 0.10, and 0.15) by means of resistivity measurements. For x = 0…

超导电性 · 物理学 2013-11-05 M. Gooch , P. Doan , B. Lorenz , Z. J. Tang , A. M. Guloy , C. W. Chu

Pressure dependence of superconducting transition temperature $T_{\rm c}$ has been determined through the DC magnetic measurements under pressure up to $P$=10 GPa for $\beta$-pyrochlore oxides AOs$_2$O$_6$ with A=Cs ($T_{\rm c}$=3.3 K), Rb…

超导电性 · 物理学 2009-11-13 K. Miyoshi , Y. Takaichi , Y. Takamatsu , M. Miura , J. Takeuchi

High pressure effects on the superconducting transitions of beta-pyrochlore superconductors AOs2O6 (A = Cs, Rb, K) are studied by measuring resistivity under high pressures up to 10 GPa. The superconducting transition temperature Tc first…

超导电性 · 物理学 2009-11-11 T. Muramatsu , N. Takeshita , C. Terakura , H. Takagi , Y. Tokura , S. Yonezawa , Y. Muraoka , Z. Hiroi

Both superconductivity and thermoelectricity offer promising prospects for daily energy efficiency applications. The advancements of thermoelectric materials have led to the huge improvement of the thermoelectric figure of merit in the past…

We report X-ray diffraction patterns and calculated electronic band structures of the Dirac line-nodal material CaSb$_2$ under pressure. Its superconducting transition temperature ($T_{\mathrm{c}}=1.7$ K) increases under pressure and…

We have studied the half-Heusler compound TbPdBi through resistivity, magnetization, Hall effect and heat capacity measurements. A semimetal behavior is observed in its normal state transport properties, which is characterized by a large…

超导电性 · 物理学 2018-08-01 H. Xiao , T. Hu , W. Liu , Y. L. Zhu , P. G. Li , G. Mu , J. Su , K. Li , Z. Q. Mao

Electrical magnetoresistance and tunnel diode oscillator measurements were performed under external magnetic fields up to 41 T applied along the crystallographic b-axis (hard axis) of UTe$_2$ as a function of temperature and applied…

High-entropy alloys (HEAs) are at the focus of current research for their diverse properties, including superconductivity and structural polymorphism. However, the polymorphic transition has been observed only in nonsuperconducting HEAs and…

超导电性 · 物理学 2020-01-16 Jifeng Wu , Bin Liu , Yanwei Cui , Qinqing Zhu , Guorui Xiao , Hangdong Wang , Siqi Wu , Guang-han Cao , Zhi Ren

High-pressure experiments on Bi$_2$Sr$_2$CaCu$_2$O$_{8+x}$ (Bi-2212) have reported apparently conflicting evolutions of the superconducting transition temperature $T_c$, ranging from weak enhancement to strong suppression and even a…

超导电性 · 物理学 2026-05-19 Shuhong Tang , Hanyu Wang , Di Peng , Da-yong Liu , Zhi Zeng , and Liang-Jian Zou

The recent discovery of high-temperature superconductivity in La$_3$Ni$_2$O$_7$ under high pressure has stimulated intensive investigations concerning its paring mechanism and a correct description of its effective low-energy physics.…

超导电性 · 物理学 2025-01-17 Jiangfan Wang , Yi-feng Yang

We demonstrated X-ray structural analysis of the pressure-induced superconductor, $\beta'$-ET$_2$ICl$_2$ under extremely high-pressure conditions, where ET denotes bis(ethylenedithio)tetrathiafulvalene. This material has been known as the…

超导电性 · 物理学 2025-09-29 T. Kobayashi , K. Yoshimi , H. Ma , S. Sekine , H. Taniguchi , N. Matsunaga , A. Kawamoto , Y. Uwatoko