Christoph Klewe
Research Scientist
Dichroism, Photon Science Operations
Biographical Information
Education
| Ph.D., Physics | Bielefeld University, Bielefeld, Germany | 2016 |
| Diploma, Physics | Bielefeld University, Bielefeld, Germany | 2012 |
Professional Experience
2023 – Present
Research Scientist
Advanced Light Source, Lawrence Berkeley National Laboratory, Berkeley, CA
2019 – 2023
Project Scientist
Advanced Light Source, Lawrence Berkeley National Laboratory, Berkeley, CA
2016 – 2019
Postdoctoral Research Fellow
Advanced Light Source, Lawrence Berkeley National Laboratory, Berkeley, CA
2011 – 2016
Graduate Student Researcher
Thin films and physics of nanostructures, Center for Spinelectronic materials and devices, Physics Department, Bielefeld University, Bielefeld, Germany
Research Interests
Christoph’s research focuses on spin dynamics and the generation, control, and detection of spin currents in magnetic thin films and multilayers using x-ray detected ferromagnetic resonance. He also studies emergent chirality in complex multiferroic materials and is involved in the investigation of polar skyrmions based on resonant soft x-ray scattering.
Selected Publications
X. Huang, X. Chen, Y. Li, J. Mangeri, H. Zhang, M. Ramesh, H. Taghinejad, P. Meisenheimer, L. Caretta, S. Susarla, R. Jain, C. Klewe, T. Wang, R. Chen, C.-H. Hsu, I. Harris, S. Husain, H. Pan, J. Yin, P. Shafer, Z. Qiu, D. R. Rodrigues, O. Heinonen, D. Vasudevan, and R. Ramesh, Manipulating chiral spin transport with ferroelectric polarization, Nat. Mater. 23, 898–904 (2024); [doi: 10.1038/s41563-024-01854-8]
C. Klewe, P. Shafer, J. E. Shoup, C. Kons, Y. Pogoryelov, R. Knut, B. A. Gray, H.-M. Jeon, B. M. Howe, O. Karis, Y. Suzuki, E. Arenholz, D. A. Arena, and S. Emori, Observation of coherently coupled cation spin dynamics in an insulating ferrimagnetic oxide, Appl. Phys. Lett. 122, 132401 (2023); [doi: 10.1063/5.0141869]
C. Klewe, S. Emori, Q. Li, M. Yang, B. A. Gray, H.-M. Jeon, B. M. Howe, Y. Suzuki, Z. Q. Qiu, P. Shafer, and E. Arenholz, Experimental realization of linearly polarized x-ray detected ferromagnetic resonance, New J. Phys. 24, 013030 (2022); [doi: 10.1088/1367-2630/ac465f]
C. Klewe, Q. Li, M. Yang, A. T. N’Diaye, D. M. Burn, T. Hesjedal, A. I. Figueroa, C. Hwang, J. Li, R. J. Hicken, P. Shafer, E. Arenholz, G. van der Laan, and Z. Qiu, Element- and Time-Resolved Measurements of Spin Dynamics Using X-ray Detected Ferromagnetic Resonance, Synchrotron Radiation News 33, 12-19 (2020); [doi: 10.1080/08940886.2020.1725796]
Q. Li, M. Yang, A. T. N’Diaye, C. Klewe, P. Shafer, N. Gao, T. Y. Wang, E. Arenholz, C. Hwang, J. Li, and Z. Q. Qiu, Chirality switching of an antiferromagnetic spiral wall and its effect on magnetic anisotropy, Phys. Rev. Materials 3, 114415 (2019); [doi: 10.1103/PhysRevMaterials.3.114415]
Q. Li, M. Yang, C. Klewe, P. Shafer, A. T. N’Diaye, D. Hou, T. Y. Wang, N. Gao, E. Saitoh, C. Hwang, R. J. Hicken, J. Li, E. Arenholz, and Z. Q. Qi, Coherent ac spin current transmission across an antiferromagnetic CoO insulator, Nature Communications 10, 5265 (2019); [doi: 10.1038/s41467-019-13280-5]
S. Das, Y. L. Tang, Z. Hong, M. A. P. Gonçalves, M. R. McCarter, C. Klewe, K. X. Nguyen, F. Gómez-Ortiz, P. Shafer, E. Arenholz, V. A. Stoica, S.-L. Hsu, B. Wang, C. Ophus, J. F. Liu, C. T. Nelson, S. Saremi, B. Prasad, A. B. Mei, D. G. Schlom, J. Íñiguez, P. García-Fernández, D. A. Muller, L. Q. Chen, J. Junquera, L. W. Martin, and R. Ramesh, Observation of room-temperature polar skyrmions, Nature 568, 368–372 (2019); [doi: 10.1038/s41586-019-1092-8]
Z. Chen, Z. Chen, C. Kuo, Y. Tang, L. R. Dedon, Q. Li, L. Zhang, C. Klewe, Y.-L. Huang, B. Prasad, A. Farhan, M. Yang, J. D. Clarkson, S. Das, S. Manipatruni, A. Tanaka, P. Shafer, E. Arenholz, A. Scholl, Y.-H. Chu, Z. Q. Qiu, Z. Hu, L.-H. Tjeng, R. Ramesh, L.-W. Wang, and L. W. Martin, Complex strain evolution of polar and magnetic order in multiferroic BiFeO3 thin films, Nature Communications 9, 3764 (2018); [doi: 10.1038/s41467-018-06190-5]
S. Emori, Di Yi, S. Crossley, J. J. Wisser, P. P. Balakrishnan, B. Khodadadi, P. Shafer, C. Klewe, A. T. N’Diaye, B. T. Urwin, K. Mahalingam, B. M. Howe, H. Y. Hwang, E. Arenholz, and Y. Suzuki, Ultralow Damping in Nanometer-Thick Epitaxial Spinel Ferrite Thin Films, Nano Letters 18, 4273 (2018); [doi: 10.1021/acs.nanolett.8b01261]
C. Klewe, T. Kuschel, J.-M. Schmalhorst, F. Bertram, O. Kuschel, J. Wollschläger, J. Strempfer, M. Meinert, and G. Reiss, Static magnetic proximity effect in Pt/Ni1−xFex bilayers investigated by x-ray resonant magnetic reflectivity, Phys. Rev. B 93, 214440 (2016); [doi: 10.1103/PhysRevB.93.214440]