Publications

Tracking topological defect motion and incommensurate charge order melting in a perovskite manganite
Noah Schnitzer, Berit H. Goodge, Gregory Powers, Jaewook Kim, Sang-Wook Cheong, Ismail El Baggari, and Lena F. Kourkoutis

Ultra-Cold Cryogenic TEM with Liquid Helium and High Stability
Emily Rennich*, Suk Hyun Sung*, Nishkarsh Agarwal, Maya Gates, Robert Kerns, Robert Hovden, Ismail El Baggar. arXiv:2402.00636 (Submitted)

Defect Engineering in Epitaxial Thin Films of the Pyrochlore Frustrated Magnet Tb2Ti2O7
Anderson, Margaret; El Baggari, Ismail; Brooks, Charles; Powell, Troy; Lygouras, Chris; N’Diaye, Alpha; Koohpayeh, Seyed; Nordlander, Johanna; Mundy, Julia. Chemistry of Materials (Accepted)

Endotaxial Stabilization of 2D Charge Density Waves with Long-range Order
Suk Hyun Sung, Nishkarsh Agarwal, Ismail El Baggari, Yin Min Goh, Pat Kezer, Noah Schnitzer, Lena F. Kourkoutis, John T Heron, Kai Sun, and Robert Hovden. Nature Communications 15, 1403 (2024)

Limits to the strain engineering of layered square-planar nickelate thin films
Dan Ferenc Segedin, Berit H. Goodge, Grace A. Pan, Hesham El-Sherif, Qi Song, Erin E. Fleck, Nicole Taylor, Spencer Doyle, Jarad A. Mason, Hanjong Paik, Ismail El Baggari, Lena F. Kourkoutis, Charles M. Brooks, and Julia A. Mundy. Nature Communications 14, 1 (2023)

Antiferromagnetic metal phase in an electron-doped rare-earth nickelate
Qi Song , Spencer Doyle , Grace Pan , Ismail El Baggari , Dan Ferenc Segedin , Denisse Cordova Carrizales , James Ehrets , Zubia Hasan , Hesham El-Sherif , Jyoti Krishna , Chase Hanson , Harrison LaBollita , Aaron Bostwick , Chris Jozwiak , Eli Rotenberg , Alessandra Lanzara , Alpha N’Diaye , Colin Heikes , Yaohua Liu , Hanjong Paik , Charles Brooks , Betül Pamuk , John Heron , Padraic Shafer ,William Ratcliff , Antia Botana , Luca Moreschini, Julia A Mundy Nature Physics 19, 522–528 (2023)

Synthesis and electronic properties of Nd_n+1Ni_nO_3n+1 Ruddlesden-Popper nickelate thin films
G. A. Pan, Q. Song, D. F. Segedin, M. Jung, H. El-Sherif, E. E. Fleck, B. H. Goodge, S. Doyle, D. C. Carrizales, A. T. N’Diaye, P. Shafer, H. Paik, L. F. Kourkoutis, I. El Baggari, A. S. Botana, C. M. Brooks, and J. A. Mundy. Physical Review Materials 6, 055003 (2022)

Disentangling Coexisting Structural Order Through Phase Lock-in Analysis of Atomic-Resolution STEM Data
B. H. Goodge, I. El Baggari, S. S Hong, Z. Wang, D. G. Schlom, H. Y.Hwang, & L. F. Kourkoutis. Microscopy and Microanalysis 1-8 (2022)

Imaging Atomic-Scale Chemistry from Fused Multi-Modal Electron Microscopy
J. Schwartz, Z. W. Di, Y. Jiang, A. J. F., D. Ha, S. D. Perera, I. El Baggari, R. D. Robinson, J. A. Fessler, C. Ophus, S. Rozeveld, R. Hovden. npj Computational Materials 8, 16 (2022)

Two-dimensional electronic order stabilized in clean polytype heterostructures
S. H. Sung, N. Schnitzer, S. Novakov, I. El Baggari, X. Luo, J. Gim, N. Vu, T. Brintlinger, Y. Sun, K. Sun, L. Zhao, L. F. Kourkoutis, J. T. Heron, R. Hovden. Nature Communications 13, 413 (2022)

Mapping defect relaxation in quantum dot solids upon in situ heating
M. Smeaton, I. El Baggari, D. M. Balazs, T. Hanrath, L. F. Kourkoutis. ACS Nano 15, 1 (2021)

Charge order textures induced by non-linearcouplings in a half-doped manganite
I. El Baggari*, D. J. Baek*, M. J. Zachman, D. Liu, Y. Hikita, H. Y. Hwang, E. A. Nowadnick, L. F. Kourkoutis. Nature Communications 12, 3747 (2021)

Direct visualization of trimerized states in 1T^’-TaTe₂
I. El Baggari, N. Sivadas, G. M. Stiehl, J. Waelder, D. C. Ralph, C. J. Fennie, L. F. Kourkoutis. Physical Review Letters 125, 165302 (2020)

Layer-dependent spin-orbit torques generated by the centrosymmetric transition metal dichalcogenide β-MoTe₂
G. M. Stiehl, R. Li, V. Gupta, I. El Baggari, S. Jiang, H. Xie, L. F. Kourkoutis, K. F. Mak, J. Shan, R. A. Buhrman, D. C. Ralph. Physical Review B 100, 184402 (2019)

Tunable magnetic transition to a singlet ground state in a 2D Van der Waals layered trimerized Kagomé magnet
C. M. Pasco, I. El Baggari, E. Bianco, L. F. Kourkoutis, T. M. McQueen. ACS Nano 13, 8 (2019)

Current-induced torque with Dresselhaus symmetry due to resistance anisotropy in 2D materials
G. M. Stiehl, D. MacNeill, N. Sivadas, I. El Baggari, M. H. D. Guimarães, N. D. Reynolds, L. F. Kourkoutis, R. A. Buhrman, C. J. Fennie, D. C. Ralph. ACS Nano, 13, 2 (2019)

Developments in electron microscopy of exotic States at oxide interfaces: cryogenic imaging and advanced detectors (invited contribution to the Towards Oxide Electronics Roadmap)
I. El Baggari and L. F. Kourkoutis. Applied Surface Science, 482, 1-93 (2019)

Image registration of low signal-to-noise cryo-STEM data
B. H. Savitzky,I. El Baggari, C. B. Clement, E. Waite, B. H. Goodge, D. J. Baek, J. P. Sheckelton, C. Pasco, H. Nair, N. J. Schreiber, J. Hoffman, A. S. Admasu, J. Kim, S. W. Cheong, A. Bhattacharya, D. G. Schlom, T. M. McQueen, R. Hovden, L. F. Kourkoutis. Ultramicroscopy, 191, 56-65 (2018)

Nature and evolution of incommensurate charge order in manganites visualized with cryogenic scanning transmission electron microscopy
I. El Baggari, B. H. Savitzky, A. S. Admasu, J. Kim, S. W. Cheong, R. Hovden, L. F. Kourkoutis. Proceedings of the National Academy of Sciences, 115(7), 1445-1450 (2018)

Bending and breaking of stripes in a charge ordered manganite
B. H. Savitzky*, I. El Baggari*, A. S. Admasu, J. Kim, S. W. Cheong, R. Hovden, L. F. Kourkoutis. Nature Communications, 8(1), 1883 (2017)

Atomic lattice disorder in charge-density-wave phases of exfoliated dichalcogenides (1T-TaS₂)
R. Hovden, A. W. Tsen, P. Liu, B. H. Savitzky, I. El Baggari, Y. Liu, W. Lu, Y. Sun, P. Kim, A. N. Pasupathy, L. F. Kourkoutis. Proceedings of the National Academy of Sciences, 113, 11420 (2016)

*Contributed equally