eXn Laboratory

Advanced scattering experiments on quantum materials

Authors Title Year Published In Keywords Download
Luis Craco, E. F. Chagas, S. S. Carara and Byron Freelon Atomristor Mott Theory of Sn Adatom Adlayer on a Si Surface, 09/09/2024 Condens. Matter.
Jayajeewana N. Ranhili, Sumit Khadka, Junjie Li, John Cenker, Xiaodong Xu, Alberto M. Ruiz, José J. Baldoví, Ka Shen, Mikhail, Fedurin, Mark Palmer, Paul Byaruhanga, Shuo Chen, Xavier Roy and Byron Freelon Ultrafast-induced Coherent Acoustic Phonons in the Two-dimensional Magnet CrSBr, Structural Dynamics.
Sumit Khadka, Leighanne C. Gallington and B. Freelon An Assessment of Thermally Driven Local Structural Phase Changes in 1T′- MoTe2, Phys. Rev.
Chamini Pathiraja, Jayajeewana Ranhili, Deniz Wong, Christian Schulz, Yide Chuang, Yu-Cheng Shao, Huang Di-Jing, Huang Hsiao-Yu, Amol Singh, and B. Freelon High-Resolution X-ray Spectroscopic Study of the Electronic Structure of Two-Dimensional Magnets CrX3 (X = Cl, Br and I) Under review Phys. Rev. X
High-repetition-rate Ultrafast Electron Diffraction Instrument, B. Freelon Design and Construction of a Compact, 01/05/2023 Rev. Sci. Instrum.
Yifan Su, Alfred Zong, Anshul Kogar, Di Lu, Seung Sae Hong, Byron Freelon Delamination-assisted Ultrafast Wrinkle Formation in a Freestanding Film, 10/05/2023 Gedik, Nanoletters,
E. Kröger, A. Petraru, A. Hanff, R. Soni, M. Kalläne, J. D. Denlinger, T. Learmonth, J.-H. Guo, K. E. Smith, T. Schneller, B. Freelon Digging Deeper: Buried Layers and Interfaces Studied by Modified Total Electron Yield and Soft Xray Absorption Spectroscopy, 11/03/2022 Appl. Phys. Lett.
L. Craco, S. S. Carara, Y.-C. Shao, Y.-D. Chuang, and B. Freelon Electronic Structure of Rhombohedral CrX3 ( X = Br, Cl, I) van der Waals Crystals, 17/05/2021 Phys. Rev.
Karki, A. Alfailakawi, B. Frandsen, M. S. Everett, J. C. Neuefeind, Binjie Xu, Hangdong Wang, Minghu Fang, and B. Freelon Local Structure of Mott Insulating Iron Oxychalcogenides La2O2Fe2OM2 (M = S, Se),B. 11/05/2021 Phys. Rev.
B. Karki, W. Huang, X. Feng, G. Sumanasekera, J.-H. Guo, Y.-D. Chuang, and B. Freelon Spectroscopic Determination of Key Energy Scales for the Base Hamiltonian of Chromium Trihalides Y. C. Shao, 12/07/2021 Phys. Chem.
B. Freelon, R. Sarkar, S. Kamusella, F. Brückner, V. Grinenko, Swagata Acharya, Mukul Laad, Luis Craco, Zahra Yamani, Roxana Flacau, Ian Swainson, Alaa Alafailakawi, Bhupendra Karki, Yuhao Liu, Hangdong Wang, Jianhua Du, Minghu Fang, H.-H. Klauss Nematic Fluctuations in Iron-Oxychalcogenide Mott Insulators, 06/04/2021 Nature Quantum Materials,
B. Karki, B. Freelon, M. Rajapakse, R. Musa, SMShah Riyadh, B. Morris, Ming Yu, G. Sumanasekera and J. B. Jasinski Strain-induced Vibrational Properties of Few-layer Black Phosphorus and MoTe2 via Raman Spectroscopy, 31/07/2020 Nanotechnology,
L. Craco, S. S. Carara, Y.-C. Shao, Y.-D. Chuang, and B. Freelon Mott Localization in the van der Waals Crystal CrI3: A View from GGA+DMFT, 10/02/2020 Phys. Rev.
L. Craco, Binjie Xu, M. H. Fang, and B. Freelon Metal-insulator Crossover and Massive Dirac Fermions in Electron-doped FeTe, 02/10/2020 Phys. Rev.
K. Limtragool, B. Freelon and P. W. Phillips Detecting Isotropic Density and Nematic Fluctuations using Ultrafast Coherent Phonon Spectroscopy C. Setty, 05/07/2019 Phys. Rev.
Electronic (trARPES) and Structural (UED) Probes on the Class of Rare Earth Tritellurides RTe3, Timm Rohwer, Alfred Zong, Anshul Kogar, Ya-Qing Bie, Changmin Lee, Edoardo Baldini, Emre Ergecen, Mehmet B. Yilmaz, B. Freelon, Edbert J. Sie, Hengyun Zhou, Joshua Straquadine, Philip Walmsley, Pavel E. Dolgirev, Alexander V. Rozhkov, Ian R. Fisher, Pablo Jarillo-Herrero, Boris V. Fine and Nuh Gedik Combining time-resolved optical (TOS), 05/04/2019 EPJ Web of Conferences
Alfred Zong, Xiaozhe Shen, Anshul Kogar, Linda Ye, Carolyn Marks, Debanjan Chowdhury, Timm Rohwer, B. Freelon, Stephen Weathersby, Renkai Li, Jie Yang, Joseph Checkelsky, Xijie Wang, Nuh Gedik Ultrafast Manipulation of Mirror Domain Walls in a Charge Density Wave, 04/04/2018 Science Advances,
A. Zong, A. Kogar, T. Rohwer, C. Lee, E. Baldini, E. Ergecen, M. Yilmaz, B. Freelon, J. Straquadine, dbert Sie, Hengyun Zhou, B. Fine, P. Jarillo-Herrero, Ian Fisher and N. Gedik Evidence for Topological Defects in a Photoinduced Phase Transition, 14/05/2018 Nat. Phys.
B. Freelon, A. M. Alafailakawi, B. Karki, and S. Leoni, Site-selective Electronic Structure of Pure and Doped Ca2O3Fe3S2 L. Craco, 05/06/2018 Phys. Rev.
M. S. Laad, B. Freelon L. Craco Microscopic Description of Unconventional Nodal Superconductivity in FeSe (Under Review,
B. Freelon, Z. Yamani, Ian Swainson, R. Flauca, Yu Hao Liu, L. Craco, M. S. Laad, Meng Wang, Jiaqi Chen, R. J. Birgeneau and Minghu Fang Mott-Kondo Insulator Behavior in the Iron Oxychalcogenides, 03/09/2015 Phys. Rev.
L. J. Wong, B. Freelon, T. Rowher, N. Gedik and S. J. Johnson All-Optical Electron Pulse Compression, 17/01/2015 New. J. Phys,
B. Freelon, T. Rohwer, N. Gedik, and S. Johnson, All-Optical, Three-Dimensional Electron Pulse Compression, in CLEO: 2015 L. J. Wong, 17/01/2015 OSA Technical Digest
L. Moreschini, A. Bostwick, G. A.Gaines, Yong Su Kim, A. L. Walter, B. Freelon, A. Tebano, K. Horn, and Eli Rotenberg, Layer-by-Layer Evolution of a Two Dimensional Electron Gas Near an Oxide Interface Young Jun Chang, 01/01/2003 Phys. Rev. Lett.
B. Freelon, K. J. Suthar and J. Ilavsky A Multi-Length Scale USAXS/SAXS Facility: 10 - 50 keV Small-Angle X-ray Scattering Instrument, 10/03/2013 J. Appl. Cryst.,
Stephen D. Wilson, Z. Yamani, Chetan Dhital, B. Freelon, P. G. Freeman, J. A. Fernandez-Baca, K. Yamada, S. Wakimoto, W. J. L. Buyers, and R. J. Birgeneau Zn-induced spin dynamics in overdoped La2−xSrxCu1−yZnyO4, 14/08/2012 Phys. Rev.
B. Freelon, M. Ramazanoglu, P. J. Chung, P. N. Valdivia and R. J. Birgeneau The Phase Smectic-A and Smectic-C Phases and Phase Transitions in 8S5 Liquid Crystal-Aerosil Gels, 01/01/2011 Phys. Rev.
B. Freelon, Y. S. Liu, Y. Liu, C. R. Rotundu, S. D. Wilson, J. H. Guo, J. Chen, W. Yang , C. L. Chang, P. A. Glans, P. M. Shirage, A. Iyo, and R. J. Birgeneau, Electronic structure of PrFeAsO1-δ: An investigation using X-ray absorption and emission spectroscopy, 27/03/2011 Journal of Physics: Conference Series
B. Freelon, Y. H Liu, J. Chen, C. R. Rotundu, P. Valdivia, S. D. Wilson, S. Gui, E. D. Bourret, W. Yang, J.-H Guo and R. J. Birgeneau, 05/05/2010 Nuclear Instruments and Methods in Physics Research A,
A. Tebano, A. Orsini, P. G. Medaglia, D. Di Castro, G. Balestrino, B. Freelon, A. Bostwick, Young Jun Chang, G. Gaines, E. Rotenberg and N. L. Saini Preferential occupation of interface bands in La2SrMnO3 Films as seen via Angle-resolved Photoemission, 05/05/2010 Phys. Rev.
C. R. Rotundu, B. Freelon, S. D. Wilson, G. Pinuellas, A. Kim, N. E. Phillips and R. J. Birgeneau Heat Capacity of Ba1-xKxFe2As2, x=0 and x=0.41, 10/08/2010 J. Phys. Conf. Ser.
B. Freelon, T. R. Forrest, S. D. Wilson, P. N. Valdivia, G. Pinuellas, A. Kim, J.-W. Kim, Z. Islam, E. Bourret-Courchesne, N. E. Phillips, and R. J. Birgeneau Heat Capacity Study of BaFe2As2: Effects of Annealing, C. R. Rotundu, 03/05/2010 Phys. Rev.
B. Freelon, A. Augustsson, P. G. Medaglia, A. Tebano, G. Balestrino, C. L. Dong, C. L. Chang, P. A. Glans, T. Learmonth, K. E. Smith, J. Nordgren, R. Ahuja, and J.-H. Guo Low Energy Electronic Spectroscopy of Infinite-layer CaCuO2: A Resonant Inelastic Xray Scattering Study, 11/05/2010 Physica
B. Freelon, Y.-S. Liu, C. R. Rotundu, S. D. Wilson, J.-H. Guo, Jeng-Lung Chen, P. -A. Glans, C. L. Chang, W. Yang, P. M. Shirage, A. Iyo, and R. J. Birgeneau X-ray Absorption and Emission Spectroscopy Study of the Effect of Doping on the Low Energy Electronic Structure of PrFeAsO1-d, 17/05/2010 Phys. Soc. Jpn.
S. D. Wilson, C. R. Rotundu, Z. Yamani, P. N. Valdivia, B. Freelon, E. Bourret-Courchesne, and R. J. Birgeneau Magnetic and Structural Order Parameter Behavior Comparison in K2NiF4 and BaFe2As2, 11/05/2010 Phys. Rev.
C. R. Rotundu, D. T. Keane, B. Freelon, S. D. Wilson, A. Kim, P. N. Valdivia, E. BourretCourchesne, and R. J. Birgeneau Phase diagram of the PrFeAsO1-xFx Superconductor, 15/05/2009 Phys. Rev.
Stephen D. Wilson, Z. Yamani, C. R. Rotundu, B. Freelon, E. Bourret-Courchesne, and R. J. Birgeneau Neutron diffraction study of the magnetic and structural phase transitions in R BaFe2As2 19/05/2009 Phys. Rev.
D. R. Garcia, C. Jozwiack, C. G. Hwang, A. Fedorov, S. M. Hanrahan, S. D. Wilson, C. R. Rotundu, B. Freelon, R. J. Birgeneau R. J. Birgeneau, E. Bourret-Courchesne and A. Lanzara, Core Level and Valence Band Study of La FeAsO0.9F0.1, 17/03/2008
B. Freelon, A. Augusston, J.-H. Guo, P. G. Medaglia, A. Tebano and G. Balestrino Electron Correlation and Charge Transfer in ((Ba0.9Nd 0.1)CuO2+δ)2/(CaCuO2) 2 Superconducting Superlattices, 12/07/2006 Phys. Rev.
Eli Rotenberg, B. K. Freelon, H. Koh, A. Bostwick, K. Rossnagel, Andreas Schmid and S. D. Kevan Electron States and the Spin Density Wave Phase Diagram in Cr(110) Films, 29/04/2005 New Journal of Physics
E. Hill, B. Freelon, and E. Ganz Diffusion of Hydrogen on the Si(001) Surface Investigated by STM Atom-Tracking, 12/05/1999 Physical Review
D. R. Garcia, C. Jozwiack, C. G. Hwang, A. Fedorov, S. M. Hanrahan, S. D. Wilson, C. R. Rotundu, B. Freelon, R. J. Birgeneau, E. Bourret-Courchesne and A. Lanzara Core-level and valence-band study using angle-integrated photoemission on LaFeAsO0.9⁢F0.1 23/12/2008 Phys. Rev. B 78, 245119

Byron Freelon

Byron Freelon, assistant professor of physics, has been named a Fulbright Scholar for 2024-25, expanding his efforts to promote the representation of Black physicists while building the scientific workforce needed to interpret data produced by X-ray synchrotrons.

Uchenna Ubeh

Uche is from Enugu state in Nigeria where he graduated from the University of Jos with a bachelor’s degree in physics and a master’s degree in physics from Auburn University. He joined the eXn group at the University of Houston in the summer of 2021. He is interested in characterizing the structural and magnetic properties of strained 2D materials using x and neutron scattering techniques. In his spare time, he enjoys playing soccer, playing video games, cooking, and spending time with his friends and family.