Full metadata record
DC Field | Value | Language |
---|---|---|
dc.contributor.author | 양인상 | - |
dc.date.accessioned | 2019-12-03T16:30:39Z | - |
dc.date.available | 2019-12-03T16:30:39Z | - |
dc.date.issued | 2019 | - |
dc.identifier.issn | 0377-0486 | - |
dc.identifier.issn | 1097-4555 | - |
dc.identifier.other | OAK-26122 | - |
dc.identifier.uri | https://dspace.ewha.ac.kr/handle/2015.oak/252349 | - |
dc.description.abstract | Impurity-induced structural distortion in SmB6 is suggested by Raman spectroscopy study on impurity-controlled samples. Significant differences in the Raman spectra of single crystals SmB6(6N), synthesized with 99.9999%-pure boron, and SmB6(3N), synthesized with 99.9%-pure boron, are detected. While no noticeable differences are detected in the X-ray diffraction of SmB6(3N) and SmB6(6N), all the Raman phonon modes of the T-2g, E-g, and A(1g) of SmB6(3N) are clearly broader and shift to higher wavenumbers than those of SmB6(6N), and the T-2g and E-g modes of SmB6(3N) show doublet features. Based on the high-pressure Raman measurements and phonon calculation in uniaxial compression model, we argue that small amount of impurities in SmB6(3N) is enough to induce anisotropic distortion in the B-6 octahedra, leading to peculiar behaviors in Raman spectrum of SmB6(3N). Our results may present a clue for understanding the current puzzles about SmB6 of various origins with different impurities. | - |
dc.language | English | - |
dc.publisher | WILEY | - |
dc.subject | line broadening | - |
dc.subject | octahedral distortion | - |
dc.subject | Raman upshift | - |
dc.subject | SmB6 | - |
dc.subject | structural distortion | - |
dc.title | Raman spectroscopic evidence of impurity-induced structural distortion in SmB6 | - |
dc.type | Article | - |
dc.relation.issue | 11 | - |
dc.relation.volume | 50 | - |
dc.relation.index | SCIE | - |
dc.relation.index | SCOPUS | - |
dc.relation.startpage | 1661 | - |
dc.relation.lastpage | 1671 | - |
dc.relation.journaltitle | JOURNAL OF RAMAN SPECTROSCOPY | - |
dc.identifier.doi | 10.1002/jrs.5709 | - |
dc.identifier.wosid | WOS:000481023200001 | - |
dc.identifier.scopusid | 2-s2.0-85070669410 | - |
dc.author.google | Thi Huyen Nguyen | - |
dc.author.google | Thi Minh Hien Nguyen | - |
dc.author.google | Kang, Boyoun | - |
dc.author.google | Cho, Beongki | - |
dc.author.google | Han, Mancheon | - |
dc.author.google | Choi, Hyoung Joon | - |
dc.author.google | Kong, Mihye | - |
dc.author.google | Lee, Yongjae | - |
dc.author.google | Yang, In-Sang | - |
dc.contributor.scopusid | 양인상(7101797839) | - |
dc.date.modifydate | 20230210140835 | - |