Knowledge Management System of Institute of Theoretical Physics, CAS
Zhang, CL; Wang, M; Luo, HQ; Wang, MY; Liu, MS; Zhao, J; Abernathy, DL; Maier, TA; Marty, K; Lumsden, MD; Chi, SX; Chang, S; Rodriguez-Rivera, JA; Lynn, JW; Xiang, T ; Hu, JP; Dai, P; Dai, P (reprint author), Univ Tennessee, Dept Phys & Astron, Knoxville, TN 37996 USA.
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| Neutron Scattering Studies of spin excitations in hole-doped Ba0.67K0.33Fe2As2 superconductor | |
| Source Publication | SCIENTIFIC REPORTS
 |
| Language | 英语 |
| Keyword | Pairing Symmetry Iron Pnictides Ba0.6k0.4fe2as2 |
| Abstract | We report inelastic neutron scattering experiments on single crystals of superconducting Ba0.67K0.33Fe2As2 (T-c = 538 K). In addition to confirming the resonance previously found in powder samples, we find that spin excitations in the normal state form longitudinally elongated ellipses along the Q(AFM) direction in momentum space, consistent with density functional theory predictions. On cooling below T-c, while the resonance preserves its momentum anisotropy as expected, spin excitations at energies below the resonance become essentially isotropic in the in-plane momentum space and dramatically increase their correlation length. These results suggest that the superconducting gap structures in Ba(0.67)Ka(0.33)Fe(2)As(2) are more complicated than those suggested from angle resolved photoemission experiments. |
| 2011 | |
| ISSN | 2045-2322 |
| Volume | 1Issue:*Pages:115 |
| Subject Area | Physics |
| Indexed By | SCI |
| Funding Organization | US Department of Energy, Division of Materials Science, Basic Energy Sciences [DOE DE-FG02-05ER46202]; US Department of Energy, Division of Scientific User Facilities, Basic Energy Sciences; National Science Foundation [DMR-0454672, DMR-0944772]; Chinese Academy of Sciences; Center for Nanophase Materials Sciences; ORNL by Basic Energy Sciences, U.S. DOE ; US Department of Energy, Division of Materials Science, Basic Energy Sciences [DOE DE-FG02-05ER46202]; US Department of Energy, Division of Scientific User Facilities, Basic Energy Sciences; National Science Foundation [DMR-0454672, DMR-0944772]; Chinese Academy of Sciences; Center for Nanophase Materials Sciences; ORNL by Basic Energy Sciences, U.S. DOE ; US Department of Energy, Division of Materials Science, Basic Energy Sciences [DOE DE-FG02-05ER46202]; US Department of Energy, Division of Scientific User Facilities, Basic Energy Sciences; National Science Foundation [DMR-0454672, DMR-0944772]; Chinese Academy of Sciences; Center for Nanophase Materials Sciences; ORNL by Basic Energy Sciences, U.S. DOE ; US Department of Energy, Division of Materials Science, Basic Energy Sciences [DOE DE-FG02-05ER46202]; US Department of Energy, Division of Scientific User Facilities, Basic Energy Sciences; National Science Foundation [DMR-0454672, DMR-0944772]; Chinese Academy of Sciences; Center for Nanophase Materials Sciences; ORNL by Basic Energy Sciences, U.S. DOE |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.itp.ac.cn/handle/311006/14251 |
| Collection | SCI期刊论文 |
| Corresponding Author | Dai, P (reprint author), Univ Tennessee, Dept Phys & Astron, Knoxville, TN 37996 USA. |
| Recommended Citation GB/T 7714 | Zhang, CL,Wang, M,Luo, HQ,et al. Neutron Scattering Studies of spin excitations in hole-doped Ba0.67K0.33Fe2As2 superconductor[J]. SCIENTIFIC REPORTS,2011,1(*):115. |
| APA | Zhang, CL.,Wang, M.,Luo, HQ.,Wang, MY.,Liu, MS.,...&Dai, P .(2011).Neutron Scattering Studies of spin excitations in hole-doped Ba0.67K0.33Fe2As2 superconductor.SCIENTIFIC REPORTS,1(*),115. |
| MLA | Zhang, CL,et al."Neutron Scattering Studies of spin excitations in hole-doped Ba0.67K0.33Fe2As2 superconductor".SCIENTIFIC REPORTS 1.*(2011):115. |
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| File Name/Size | DocType | Version | Access | License | ||
| Neutron Scattering S（1356KB） | 开放获取 | License | Application Full Text | |||
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