D. Sheyfer, R. G. Mariano, T. Kawaguchi, W. Cha. R. Harder, M. K. Kanan, S. O. Hruszkewycz, H. You, M. J. Highland. “Operando nanoscale imaging of electrochemically induced strain in a locally polarized Pt grain,” Nano Letters 23, 1 (2023). [Published December 21, 2023, DOI: https://doi.org/10.1021/acs.nanolett.2c01015]
K. J. Harmon, N. Delegan, M. J. Highland, H. He, P. Zapol, F. J. Heremans, S. O. Hruszkewycz. “Designing silicon carbide heterostructures for quantum information science: challenges and opportunities.” Materials for Quantum Technology 2, 023001 (2022). [Published May 23, 2022, DOI: https://doi.org/10.1088/2633-4356/ac6b76 ]
Y. Ahn, M. J. Cherukara, Z. Cai, M. Bartlein, T. Zhou, A. DiChiara, D. A. Walko, M. V. Holt, E. E. Fullerton, P. G. Evans, H. Wen. “X-ray nanodiffraction imaging reveals distinct nanoscopic dynamics of an ultrafast phase transition” PNAS 119, e2118597119 (2022). [Published May 6, 2022, DOI: https://doi.org/10.1073/pnas.2118597119 ]
G. Ju, D. Xu, C. Thompson, M. J. Highland, J. A. Eastman, W. Walkosz, P. Zapol, G. B. Stephenson. “Burton-Cabrera-Frank theory for surfaces with alternating step types.” Physical Review B 105, 054312 (2022). [Published February 22, 2022, DOI: https://doi.org/10.1103/PhysRevB.105.054312 ]
N. Bertaux, M. Allain, J. Weizeorick, J.-S. Park, P. Kenesei, S. D. Shastri, J. Almer, M. J. Highland, S. Maddali, S. O. Hruszkewycz. “Sub-pixel high-resolution imaging of high-energy x-rays inspired by sub-wavelength optical imaging.” Optics Express 29, 35003 (2021). [Published October 11, 2021, DOI: https://doi.org/10.1364/OE.438945 ]
T. Kawaguchi, V. Komanicky, V. Latyshev, W. Cha, E. R. Maxey, R. Harder, T. Ichitsubo, H. You. “Electrochemically Induced Strain Evolution in Pt-Ni Alloy Nanoparticles Observed by Bragg Coherent Diffraction Imaging.” Nano Letters 21, 5945 (2021). [Published July 12, 2021, DOI: https://doi.org/10.1021/acs.nanolett.1c00778 ]
S. Kandel, S. Maddali, Y. S. G. Nashed, S. O. Hruszkewycz, C. Jacobsen, M. Allain. “A matrix-free Levenberg-Marquardt algorithm for efficient ptychographic phase retrieval.” Optics Express 29, 23019 (2021). [Published July 7, 2021, DOI: https://doi.org/10.1364/OE.422768 ]
G. Ju, D. Xu, C. Thompson, M. J. Highland, J. A. Eastman, W. Walkosz, P. Zapol, G. B. Stephenson. “In-situ microbeam surface x-ray scattering reveals alternating step kinetics during crystal growth.” Nature Communications 12, 1721 (2021). [Published March 19, 2021, DOI: https://doi.org/10.1038/s41467-021-21927-5 ]
G. Ju, D. Xu, C. Thompson, M. J. Highland, J. A. Eastman, W. Walkosz, P. Zapol, G. B. Stephenson. “Crystal truncation rods from miscut surfaces with alternating terminations.” Physical Review B 103, 125402 (2021). [Published March 2, 2021, DOI: https://doi.org/10.1103/PhysRevB.103.125402 ]
S. Maddali, M. Allain, P. Li, V. Chamard, S. O. Hruszkewycz. “Detector tilt considerations in Bragg coherent diffraction imaging: A simulation study,” Crystals 10, 1150 (2020). [Published December 17, 2020, DOI: https://doi.org/10.3390/cryst10121150 ]
Y. Cao, D. Sheyfer, Z. Jiang, S. Maddali, H. You, B. X. Wang, Z. G. Ye, E. M. Dufresne, H. Zhou, G. B. Stephenson, S. O. Hruszkewycz. “The effect of intensity fluctuations on sequential x-ray photon correlation spectroscopy at the x-ray free electron laser facilities.” Crystals 10, 1109 (2020). [Published December 4, 2020, DOI: https://doi.org/10.3390/cryst10121109 ]
T. Kawaguchi, Y. Liu, E. A. Karapetrova, V. Komanicky, H. You. “In-situ to ex-situ in-plane structure evolution of stern layers on Pt(111) surface: Surface X-ray scattering studies.” Journal of Electroanalytical Chemistry 875, 11495 (2020). [Published October 15, 2020, DOI: https://doi.org/10.1016/j.jelechem.2020.114495 ]
T. Kawaguchi, R. R. Rao, J. R. Lunger, Y. Liu, D. Walko, E. A. Karapetrova, V. Komanicky, Y. Shao-Horn, H. You. “Stern layers on RuO2 (100) and (110) in electrolyte: Surface x-ray scattering studies.” Journal of Electroanalytical Chemistry 875, 114228 (2020). [Published October 15, 2020, DOI: https://doi.org/10.1016/j.jelechem.2020.114228 ]
D. Sheyfer, Q. Zhang, J. Lal, T. Loeffler, E. M. Dufresne, A. R. Sandy, S. Narayanan, S. K. R. S. Sankaranarayanan, R. Szczygiel, P. Maj, L. Soderholm, M. R. Antonio, G. B. Stephenson. “Nanoscale critical phenomena in a complex fluid studied by x-ray photon correlation spectroscopy.” Physical Review Letters 125, 125504 (2020). [Published September 18, 2020, DOI: https://doi.org/10.1103/PhysRevLett.125.125504 ]
S. Maddali, J.-S. Park, H. Sharma, S. Shastri, P. Kenesei, J. Almer, R. Harder, M. J. Highland, Y. Nashed, S. O. Hruszkewycz. “High-energy coherent x-ray diffraction microscopy of polycrystal grains: Steps towards a multiscale approach.” Physical Review Applied 14, 024085 (2020). [Published August 27, 2020, DOI: https://doi.org/10.1103/PhysRevApplied.14.024085 ]
S. Maddali, P. Li, A. Pateras, D. Timbie, N. Delegan, A. L. Crook, H. Lee, I. Calvo-Almazan, D. Sheyfer, W. Cha, F. J. Heremans, D. D. Awschalom, V. Chamard, M. Allain, S. O. Hruszkewycz. “General approaches for shear-correcting coordinate transformations in Bragg coherent diffraction imaging, Part I.” Journal of Applied Crystallography 53, 393 (2020). [Published January 31, 2020, DOI: https://doi.org/10.1107/S1600576720001363 ]
T. Kawaguchi, T.F. Keller, H. Runge, L. Gelisio, C. Seitz, W. Cha, A. Ulvestad, S.O. Hruszkewycz, R. Harder, I. Vartanyants, A. Stierle, and H. You. “Gas-induced segregation in Pt-Rh alloy nanoparticles observed by in-situ Bragg coherent diffraction imaging,” Physical Review Letters 123, 246001 (2019). [Published December 13, 2019: DOI: https://doi.org/10.1103/PhysRevLett.123.246001]
T. Kawaguchi, W. Cha, V. Latyshev, S. Voroboiv, V. Komanicky, and H. You, “Study of the Internal Compositions of Binary Alloy Pd-Rh Nanoparticles by Using Bragg Coherent Diffraction Imaging,” Journal of the Korean Physical Society 75, 528 (2019). [Published October 10, 2019: DOI: https://doi.org/10.3938/jkps.75.528]
Y. Liu, H. You, Y.C. Kimmel, D.V. Esposito, G. Chen, and T.P. Moffat. “Self-terminating electrodeposition of Pt on WC electrocatalysts,” Applied Surface Science 504, 144472 (2020). [Published October 28, 2019: DOI: https://doi.org/10.1016/j.apsusc.2019.144472]
I. Calvo-Almazan, A. Ulvestad, E. Colegrove, T. Ablekim, M.V. Holt, M.O. Hill, S. Maddali, L.J. Lauhon, M.I. Bertoni, X. Huang, H. Yan, E. Nazaretski, Y.S. Chu, S.O. Hruszkewycz, and M.E. Stuckelberger, “Strain mapping of CdTe grains in photovoltaic devices,” IEEE Journal of Photovoltaics 9, 1790 (2019). [Published October 8, 2019: DOI: https://doi.org/10.1109/JPHOTOV.2019.2942487]
A. Ulvestad, S.O. Hruszkewycz, M.V. Holt, M.O. Hill, I. Calvo-Almazan, S. Maddali, X. Huang, H. Yan, E. Nazaretski, Y.S. Chu, L.J. Lauhon, N. Rodkey, M.I. Bertoni, and M.E. Stuckelberger, “Multimodal x‑ray imaging of grain-level properties and performance in a polycrystalline solar cell,” Journal of Synchrotron Radiation 26, 1316 (2019). [Published July 1, 2019: DOI: https://doi.org/10.1107/S1600577519003606]
S. Maddali, M. Allain, W. Cha, R. Harder, J. Almer, P. Kenesei, J.-S. Park, Y. Nashed, and S.O. Hruszkewycz, “Phase retrieval for Bragg coherent diffraction imaging at high x-ray energies,” Physical Review A 99, 053838 (2019). [Published May 23, 2019: DOI: https://doi.org/10.1103/PhysRevA.99.053838]
I. Calvo-Almazan, M. Allain, S. Maddali, V. Chamard, and S.O. Hruszkewycz, “Impact and mitigation of angular uncertainties in Bragg coherent x-ray diffraction imaging,” Scientific Reports 9, 6386 (2019). [Published April 23, 2019: DOI: https://doi.org/10.1038/s41598-019-42797-4]
G. Ju, D. Xu, M.J. Highland, C. Thompson, H. Zhou, J.A. Eastman, P.H. Fuoss, P. Zapol, H. Kim, and G.B. Stephenson, “Coherent x-ray spectroscopy reveals the persistence of island arrangements during layer-by-layer growth,” Nature Physics 15, 589 (2019). [Published March 4, 2019: DOI: https://doi.org/10.1038/s41567-019-0448-1]
H. You, “X-ray scattering and imaging studies of electrode structure and dynamics,” Chemical Record 18, 1 (2018). [Published September 24, 2019: DOI: https://doi.org/10.1002/tcr.201800083]
S.O. Hruszkewycz, S. Maddali, C.P. Anderson, W. Cha, K.C. Miao, M.J. Highland, A. Ulvestad, D.D. Awschalom, and F.J. Heremans, “Strain annealing of SiC nanoparticles revealed through Bragg coherent diffraction imaging for quantum technologies,” Physical Review Materials 2, 086001 (2018). [Published August 2, 2018: DOI: https://doi.org/10.1103/PhysRevMaterials.2.086001]
H. You, “Angle calculations using two detector circles and wavelength,” Journal of Applied Crystallography 51, 1226-1228 (2018). [Published June 25, 2018: DOI: https://doi.org/10.1107/S1600576718009147]
G. Ju, M. J. Highland, C. Thompson, J. A. Eastman, P. H. Fuoss, H. Zhou, R. Dejus, and G. B. Stephenson, “Characterization of the x-ray coherence properties of an undulator beamline at the Advanced Photon Source,” Journal of Synchrotron Radiation 25, 1036-1047 (2018). [Published June 13, 2018: DOI: https://doi.org/10.1107/S1600577518006501]
W. Roseker, S. O. Hruszkewycz, F. Lehmkueler, M. Walther, H. Schulte-Schrepping, S. Lee, T. Osaka, L. Strueder, R. Hartmann, M. Sikorski, S. Song, A. Robert, P. H. Fuoss, M. Sutton, G. B. Stephenson, and G. Gruebel, “Towards ultrafast dynamics with split-pulse x-ray photon correlation spectroscopy at free electron laser sources,” Nature Communications 9, 1704 (2018). [Published April 27, 2018:
DOI: https://doi.org/10.1038/s41467-018-04178-9]
T. Kawaguchi, Y. Liu, M. S. Pierce, V. Komanicky, and H. You, “Direct determination of the one‑dimensional interphase structure by crystal truncation rod analysis,” Journal of Applied Crystallography 51, 679-684 (2018). [Published April 20, 2018: DOI: https://doi.org/10.1107/S1600576718004326]
S. Maddali, I. Calvo-Almazan, J. Almer, P. Kenesei, J.-S. Park, R. Harder, Y. Nashed, and S.O. Hruszkewycz, “Sparse recovery of undersampled intensity patterns for coherent diffraction imaging at high x-ray energies,” Scientific Reports 8, 4959 (2018). [Published March 21, 2018: DOI: https://doi.org/10.1038/s41598-018-23040-y]
Y. Liu, T. Kawaguchi, M. S. Pierce, V. Komanicky, and H. You, “Layering and ordering in electrochemical double layers,” Journal of Physical Chemistry Letters 9, 1265-1271 (2018). [Published February 26, 2018: DOI: https://doi.org/10.1021/acs.jpclett.8b00123]
T. K. Andersen, S. Y. Cook, G. Wan, H. Hong, L. D. Marks, and D. D. Fong, “Layer-by-layer epitaxial growth of defect-engineered strontium cobaltites,” ACS Applied Materials and Interfaces 10, 5949 (2018). [Published January 18, 2018: DOI: https://doi.org/10.1021/acsami.7b16970]
M. O. Hill, I. Calvo-Almazan, M. Allain, M. V. Holt, A. Ulvestad, J. Treu, G. Koblmueller, C. Huang, X. Huang, H. Yan, E. Nazaretski, Y. S. Chu, G. B. Stephenson, V. Chamard, L. J. Lauhon, and S. O. Hruszkewycz, “Measuring three-dimensional strain and structural defects in a single InGaAs nanowire using coherent x-ray multi-angle Bragg projection ptychography,” Nano Letters 18, 811-819 (2018). [Published January 18, 2018: DOI: https://doi.org/10.1021/acs.nanolett.7b04024
A. Ulvestad, M. Menickelly, and S. M. Wild, “Accurate, rapid identification of dislocation lines in coherent diffractive imaging via a min-max optimization formulation,” AIP Advances 8, 015114 (2018). [Published January 10, 2018: DOI: https://doi.org/10.1063/1.5017596]
E. Perret, D. Xu, M. J. Highland, G. B. Stephenson, P. Zapol, P. H. Fuoss, A. Munkholm, and C. Thompson, “Island dynamics and anisotropy during vapor phase epitaxy of m-plane GaN,” Applied Physics Letters 111, 232102 (2017). [Published December 4, 2017: DOI: https://doi.org/10.1063/1.4993788]
S. Y. Cook, T. K. Andersen, R. Rosenberg, H. Hong, L. D. Marks, and D. D. Fong, “Engineering the oxygen coordination in digital superlattices,” APL Materials 5, 126101 (2017). [Published December 1, 2017:
DOI: https://doi.org/10.1063/1.5007663]
S.O. Hruszkewycz, M. Allain, M.V. Holt, C.E. Murray, J.R. Holt, P.H. Fuoss, and V. Chamard, “High‑resolution three-dimensional structural microscopy by single-angle Bragg ptychography,” Nature Materials 16, 244-251 (2017). [Published November 21, 2017: DOI: http://dx.doi.org/10.1038/nmat4798]
K.-C. Chang, B. Ingram, J. Ilavsky, S. Lee, P.H. Fuoss, and H. You, “Synchrotron x-ray studies of model SOFC cathodes, part I: Thin film cathodes,” Solid State Ionics 311, 118 (2017). [Published November 15, 2017: DOI: https://doi.org/10.1016/j.ssi.2017.10.005]
K.-C. Chang, B. Ingram, J. Ilavsky, S. Lee, P.H. Fuoss, and H. You, “Synchrotron x-ray studies of model SOFC cathodes, Part II: Porous powder cathodes,” Solid State Ionics 311, 127 (2017). [Published November 15, 2017: DOI: https://doi.org/10.1016/j.ssi.2017.10.001]
A. Ulvestad and A. Yau, “The self-healing of defects induced by the hydriding phase transformation in palladium nanoparticles,” Nature Communications 8, 1376 (2017). [Published November 9, 2019:
DOI: https://doi.org/10.1038/s41467-017-01548-7]
H. You, Y. Liu, A. Ulvestad, M. S. Pierce, and V. Komanicky, “Studies of electrode structures and dynamics using coherent x-ray scattering and imaging,” Current Opinion in Electrochemistry 4, 89-94 (2017). [Published October 18 2017: DOI: https://doi.org/10.1016/j.coelec.2017.10.017]
A. Yau, R. Harder, M. W. Kanan, and A. Ulvestad, “Imaging the hydrogen absorption dynamics of individual grains in polycrystalline palladium thin films in 3D,” ACS Nano 11, 10945-10954 (2017). [Published October 16, 2017: DOI: https://doi.org/10.1021/acsnano.7b04735]
A. Ulvestad, Y. Nashed, G. Beutier, M. Verdier, S. O. Hruszkewycz, and M. Dupraz, “Identifying defects with guided algorithms in Bragg coherent diffractive imaging,” Scientific Reports 7, 9920 (2017). [Published August 30, 2017: DOI: https://doi.org/10.1038/s41598-017-09582-7]
A. Ulvestad, M. J. Cherukara, R. Harder, W. Cha, I. K. Robinson, S. Soog, S. Nelson, D. Zhu, G. B. Stephenson, O. Heinonen, and A. Jokisaari, “Bragg coherent diffractive imaging of zinc oxide acoustic phonons at picosecond timescales,” Scientific Reports 7, 9823 (2017). [Published August 29, 2017:
DOI: https://doi.org/10.1038/s41598-017-09999-0]
A. Yau, W. Cha, M. Kanan, G. B. Stephenson, and A. Ulvestad, “Bragg coherent diffractive imaging of single-grain defect dynamics in polycrystalline films,” Science 356, 739-742 (2017). [Published May 19, 2017: DOI: https://doi.org/10.1126/science.aam6168]
Y. Dong, H. Xu, Z. Luo, H. Zhou, D. D. Fong, W. Wu, and C. Gao, “Effect of gate voltage polarity on the ionic liquid gating behavior of NdNiO3/NdGaO3 heterostructures,” APL Materials 5, 051101 (2017). [Published May 16, 2017: DOI: https://doi.org/10.1063/1.4983617]
W. Cha, Y. Liu, H. You, G. B. Stephenson, and A. Ulvestad, “Dealloying in individual nanoparticles and thin film grains: A Bragg coherent diffractive imaging study,” Advanced Functional Materials 27, 1700331 (2017). [Published May 9, 2017: DOI: https://doi.org/10.1002/adfm.201700331]
D. Xu, P. Zapol, G. B. Stephenson, and C. Thompson, “Kinetic Monte Carlo simulations of GaN homoepitaxy on c- and m-plane surfaces,” Journal of Chemical Physics 146, 144702 (2017). [Published April 12, 2017: DOI: https://doi.org/10.1063/1.4979843]
G. Ju, M.J. Highland, A. Yanguas-Gil, C. Thompson, J.A. Eastman, H. Zhou, S.M. Brennan, G.B. Stephenson, and P.H. Fuoss, “An instrument for in situ coherent x-ray studies of metal-organic vapor phase epitaxy of III-nitrides,” Review of Scientific Instruments 88, 035113 (2017). [Published March 21, 2017: DOI: https://doi.org/10.1063/1.4978656]