Full metadata record
DC Field | Value | Language |
---|---|---|
dc.contributor.author | 양인상 | - |
dc.date.accessioned | 2022-06-02T16:32:16Z | - |
dc.date.available | 2022-06-02T16:32:16Z | - |
dc.date.issued | 2022 | - |
dc.identifier.issn | 0924-2031 | - |
dc.identifier.other | OAK-31606 | - |
dc.identifier.uri | https://dspace.ewha.ac.kr/handle/2015.oak/261339 | - |
dc.description.abstract | BiFeO3 is one of the most attracting materials because it is the only known room-temperature multiferroic material. It has been studied by Raman spectroscopy extensively. We perform two-dimensional correlation spectroscopy (2D COS) and perturbation-correlation moving window two-dimensional correlation spectroscopy (PCMW2D) analysis on the temperature-dependent Raman spectra of a BiFeO3 single crystal. The two low temperature spin reorientation transitions around 135 K and 190 K are confirmed through the significant change in phonon peaks from PCMW2D correlation spectra. We also identify the origin of the mode at ~ 1255 cm−1, which has been controversial until now. In our 2D COS analysis, the intensity of this mode has a strong correlation with the intensity of 145 and 176 cm−1 phonons which correspond to the vibration modes of the Bi-O and Fe-O chemical bonds. We propose that the mode at ~ 1255 cm−1 is the two-phonon scattering of the 551 cm−1 mode assisted by the 145 −176 cm−1 phonons. © 2022 Elsevier B.V. | - |
dc.language | English | - |
dc.publisher | Elsevier B.V. | - |
dc.subject | Multiferroic BiFeO3 | - |
dc.subject | Raman scattering, two-dimension correlation spectroscopy, perturbation-correlation moving window two-dimensional correlation spectroscopy | - |
dc.title | 2D COS and PCMW2D analysis of the magnetic transitions in Raman spectra of BiFeO3 | - |
dc.type | Article | - |
dc.relation.volume | 120 | - |
dc.relation.index | SCIE | - |
dc.relation.index | SCOPUS | - |
dc.relation.journaltitle | Vibrational Spectroscopy | - |
dc.identifier.doi | 10.1016/j.vibspec.2022.103383 | - |
dc.identifier.wosid | WOS:000800560700002 | - |
dc.identifier.scopusid | 2-s2.0-85129949003 | - |
dc.author.google | Nguyen T.M.H. | - |
dc.author.google | Nguyen X.N. | - |
dc.author.google | Nguyen V.M. | - |
dc.author.google | To X.T. | - |
dc.author.google | Nguyen D.C. | - |
dc.author.google | Nguyen T.H. | - |
dc.author.google | Chen X.B. | - |
dc.author.google | Yang I.-S. | - |
dc.contributor.scopusid | 양인상(7101797839) | - |
dc.date.modifydate | 20230210140835 | - |