Zobrazeno 1 - 10
of 412
pro vyhledávání: '"Xue, Y Y"'
Publikováno v:
Phys. Rev. B 93, 054513 (2016)
To explore the origin of the unusual non-bulk superconductivity with a Tc up to 49 K reported in the rare-earth-doped CaFe2As2 , the chemical composition, magnetization, specific heat, resistivity, and annealing effect are systematically investigated
Externí odkaz:
http://arxiv.org/abs/1602.04266
Autor:
Deng, L. Z., Lv, B., Wu, Z., Xue, Y. Y., Zhang, W. H., Li, F. H., Wang, L. L., Ma, X. C., Xue, Q. K., Chu, C. W.
Recent reports of interface-induced superconductivity in the unit-cell films of FeSe on SrTiO3 with a Tc up to ~ 65+-5 K, highest among the Fe-based superconductors and second only to that of the cuprates, have generated great excitement. Here we sho
Externí odkaz:
http://arxiv.org/abs/1311.6459
In rare-earth doped single crystalline CaFe2As2, the mysterious small volume fraction which superconducts up to 49 K, much higher than the bulk Tc ~ 30s K, has prompted a long search for a hidden variable that could enhance the Tc by more than 30% in
Externí odkaz:
http://arxiv.org/abs/1309.0034
Publikováno v:
Physical Review B 88, 134520 (2013)
We report the discovery of superconductivity at 2.3 K in Zr5Sb3, the first superconducting member in the large compound family of the Mn5Si3-structure type. Transport, magnetic, and calorimetric measurements and band structure calculations show it to
Externí odkaz:
http://arxiv.org/abs/1308.4649
The observation of non-bulk superconductivity with an unexpectedly high onset transition temperature Tc up to ~ 49 K in non-superconducting single crystalline CaFe2As2 upon rare-earth doping has raised interesting questions concerning its origin. Sev
Externí odkaz:
http://arxiv.org/abs/1308.3129
Publikováno v:
Phys. Rev. B 84, 184517 (2011)
Two single crystalline samples with the same nominal composition of Rb0.8Fe2Se2 prepared via slightly different precursor routes under the same thermal processing conditions were investigated at ambient and high pressures. One sample was found superc
Externí odkaz:
http://arxiv.org/abs/1110.6138
Autor:
Lv, B., Deng, L. Z., Gooch, M., Wei, F. Y., Sun, Y. Y., Meen, J., Xue, Y. Y., Lorenz, B., Chu, C. W.
Publikováno v:
Proceedings of the National Academy of Sciences USA 108, 15705 (2011)
We report the detection of unusual superconductivity up to 49 K in single crystalline CaFe2As2 via electron-doping by partial replacement of Ca by rare-earth. The superconducting transition observed suggests the possible existence of two phases: one
Externí odkaz:
http://arxiv.org/abs/1106.2157
The magnetic properties of LiFeAs, as single crystalline and polycrystalline samples, were investigated. The lower critical field deduced from the vortex penetration of two single crystals appears to be almost isotropic with a temperature dependence
Externí odkaz:
http://arxiv.org/abs/1004.1387
The zero-field specific heat of LiFeAs was measured on several single crystals selected from a bulk sample. A sharp Delta Cp/Tc anomaly of approximately 20 mJ/(mole x K^2) was observed. The value appears to be between those of SmFeAs(O0.9F0.1) and (B
Externí odkaz:
http://arxiv.org/abs/1004.0854
Autor:
Chu, C. W., Chen, F., Gooch, M., Guloy, A. M., Lorenz, B., Lv, B., Sasmal, K., Tang, Z. J., Tapp, J. H., Xue, Y. Y.
Publikováno v:
Physica C 469, 326 (2009)
The newest homologous series of superconducting As-pnictides, LiFeAs (Li111) and NaFeAs (Na111) have been synthesized and investigated. Both crystallize with the layered tetragonal anti-PbFCl-type structure in P4/nmm space group. Polycrystalline samp
Externí odkaz:
http://arxiv.org/abs/0902.0806