2022年12月22日 · High-pressure electrical resistivity measurements reveal that the mechanical deformation of ultra-hard WB 2 during compression induces superconductivity above 50 GPa with a maximum...

2023年7月19日 · A recent experiment of polycrystalline $ {\mathrm {WB}}_ {2}$ with hP3 (space-group 191, prototype $ {\mathrm {MgB}}_ {2}$) and hP12 (space-group 194, prototype $ {\mathrm {WB}}_ {2}$) structures was reported to realize 17-K superconductivity (SC) at 90 GPa, and the hP3 structure is believed to be responsible for this emergent SC.

High-pressure electrical resistivity measurements reveal that the mechanical deformation of ultra-hard WB2 during compression induces superconductivity above 50 GPa with a maximum superconducting...

2018年7月1日 · The structural, electronic and optical properties of six WB 2 diborides with hP 3, hP 6, hP 12, oP 6, hR 9 and hR 18 structures were systematically investigated using the first-principles calculation based on density functional theory.

2021年7月22日 · hybridized bonding states between W and B, giving rise to a broad pseudogap around the Fermi level (Fig. 5j). These properties further confirm that WB5 is an energetically favorable phase. Staggering the boron sheets of hP3-WB2 provides an alternative approach to relief the filling of unfavorable antibonding state of 5

Theoretical calculations show that electron-phonon mediated super- conductivity originates from the formation of metastable stacking faults and twin boundaries that exhibit a local structure resembling MgB2(hP3, space group 191, prototype AlB ).

2022年12月22日 · Theoretical calculations show that electron-phonon mediated superconductivity originates from the formation of metastable stacking faults and twin boundaries that exhibit a local structure resembling MgB 2 (hP3, space group 191, prototype AlB 2).

WB2 二硼化物是热力学稳定的，相稳定性的顺序是 hP6 > oP6 > hR9 > hR18 > hP12 > hP3。 基于单晶弹性常数计算多晶弹性模量、泊松比、硬度和德拜温度。

nic compound WB 2, which forms at ambient pressure in the hP12 (P63=mmc) structure. In-vestigating this compound in a series of experiments to pressures as high as 187 GPa, we discovered that WB2 becomes superconducting near 50 GPa. with Tc jumping rapidly to about 17 K and varying weakly with pressure thereafter. Interestingly, W.

A recent experiment of polycrystalline WB2 with hP3 (space-group 191, prototype MgB2) and hP12 (space-group 194, prototype WB2) structures was reported to realize 17-K superconductivity (SC) at 90 GPa, and the hP3 structure is believed to be responsible for this emergent SC.