What Has Been Achieved:
This works demonstrates interlayer magnetophononic coupling in the layered magnetic topological insulator MnBi2Te4
Importance of the Achievement:
The results resulting from this work demonstrates a pathway toward achieving ultrafast light-induced topological phase transitions.
Unique Feature(s) of the MIP that Enabled this Achievement:
Synthesis of high-quality MnBi2Te4 single crystals are extremely challenging due to the disorders caused by its non-stoichiometry compositions. The 2DCC has developed a protocol to grow MnBi2Te4 single crystals with good quality. The close collaboration between the user and the 2DCC bulk synthesis team enables this work.
Publication:
Hari Padmanabhan, Maxwell Poore, Peter Kim, Nathan Z. Koocher, Vladimir A. Stoica, Danilo Puggioni, Huaiyu Wang, Xiaozhe Shen, Alexander H. Reid, Mingqiang Gu, Maxwell Wetherington, Seng Huat Lee, Richard Schaller, Zhiqiang Mao, Aaron M. Lindenberg, Xijie Wang, James M. Rondinelli, Richard Averitt, Venkatraman Gopalan, Nature Communications 13, 1929 (2022). DOI: 10.1038/s41467-022-29545-5
H.P., V.A.S., H.W., P.K., M.P., N.Z.K., A.M.L., R.A., J.M.R., and V.G. acknowledge support from the DOE-BES grant DE-SC0012375. H.P. acknowledges partial support from the DOE Computational Materials program, DE-SC0020145. Support for crystal growth and characterization was provided by the National Science Foundation through the Penn State 2D Crystal Consortium-Materials Innovation Platform (2DCC-MIP) under NSF cooperative agreement DMR-1539916 and DMR-2039351. D.P. was supported by the Army Research Office (ARO) under grant no. W911NF-15-1-0017. SLAC MeV-UED is supported in part by the DOE-BES SUF Division Accelerator & Detector R&D program, the LCLS Facility, and SLAC under Contract Nos. DE-AC02–05-CH11231 and DE-AC02–76SF00515. Use of the Center for Nanoscale Materials, a DOE Office of Science User Facility, was supported by the U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences, under Contract No. DE-AC02-06CH11357. Zero-field Raman measurements were performed in the Materials Characterization Laboratory within the Materials Research Institute at Penn State.
Credits/Names: H. Padmanabhan, H. Wang, M. Wetherington (Penn State), V. A. Stoica, S. H. Lee, Z.Q. Mao, V. Gopalan (2DCC, Penn State); M. Poor, P. Kim, R. Averitt (UCSD); N. Z. Koocher, D. Puggioni, M. Gu, J. M. Rondinelli (Northwestern University); X. Shen, A. H. Reid, A. M. Lindenberg, X. Wang (SLAC); R. Schaller (Argonne National Laboratory)
Download PDF Version: 1539916_2039351_2DCCMIP_2022_Interlayer magnetophononic coupling in MnBi2Te4.pdf
Year of Research Highlight: 2022
Select a Highlight Type: User Highlight