Aileen Luo, Oleg Yu. Gorobtsov, Jocienne N. Nelson, Ding-Yuan Kuo, Ziming Shao, Ryan Bouck, Mathew Cherukara, Martin V. Holt, Kyle M. Shen, Darrell G. Schlom, Jin Suntivich, Andrej Singer, “X-ray Nano-imaging of Defects in Thin Film Catalysts via Cluster Analysis”
Submitted (2022), arXiv:2203.09980

B. Gregory, J. Strempfer, D. Weinstock, J. Ruf, Y. Sun, H. Nair, N. J. Schreiber, D. G. Schlom, K. M. Shen, and A. Singer, “Strain-induced orbital energy shift in antiferromagnetic RuO2 revealed by resonant elastic x-ray scattering”
Submitted (2022), arXiv:2201.07297

O. Gorobtsov, H. Hirsh, M. Zhang, D. Sheyfer, S. Matson, D. Weinstock, R. Bouck, Z. Wang, W. Cha, J. Maser, R. Harder, Y. Sh. Meng, and A. Singer, “Interaction and transformation of metastable defects in intercalation materials”
Submitted (2022), arXiv:2106.12145

[56] O. Gorobtsov, Y. Song, K. Fritz, D. Weinstock, Y. Sun, D. Sheyfer, W. Cha, J. Maser, J. Suntivich, A. Singer, “In-situ non-equilibrium nanomechanics in a proton-conducting ceramic at low temperatures”
Advanced Science, accepted (2022)

[55] Jiaruo Li, Oleg Yu Gorobtsov, Sheena KK Patel, Nelson Hua, Benjamin Gregory, Anatoly G Shabalin, Stjepan Hrkac, James Wingert, Devin Cela, James M Glownia, Matthieu Chollet, Diling Zhu, Rajasekhar Medapalli, Eric E Fullerton, Oleg G Shpyrko, Andrej Singer, “Phonon-assisted formation of an itinerant electronic density wave”
Communications Physics, 5, 125 (2022)

[54] Y. Yang, C. Peltier, R. Zeng, R. Schimmenti, Q. Li, X. Huang, Z. Yan, G. Potsi, R. Selhorst, X. Lu, W. Xu, M.l Tader, A. Soudackov, H. Zhang, M. Krumov, E. Murray, P. Xu, J. Hitt, L. Xu, H. Ko, B. Ernst, C. Bundschu, A. Luo, D. Markovich, M. Hu, C. He, H. Wang, J. Fang, R. A DiStasio, L. Kourkoutis, A. Singer, K. Noonan, L. Xiao, L. Zhuang, B. Pivovar, P. Zelenay, E. Herrero, J. Feliu, J. Suntivich, E. Giannelis, S. Hammes-Schiffer, T. Arias, M. Mavrikakis, T. Mallouk, J. Brock, D. Muller, F. DiSalvo, G. Coates, H. Abruña, “Electrocatalysis in alkaline media and alkaline membrane-based energy technologies”
Chemical Reviews 122, 6117-6321 (2022)

[53] Gorobtsov and A. Singer, “Shear displacement gradient in X-ray Bragg coherent diffractive imaging”
J. Synchrotron Rad.  29, 866-870 (2022)

[52] J. Huang, D. Weinstock, H. Hirsh, R. Bouck, M. Zhang, O. Gorobtsov, M. Okamura, R. Harder, W. Cha, J. P. C. Ruff, Y. S. Meng, and A. Singer, “Disorder Dynamics in Battery Nanoparticles During Phase Transitions Revealed by Operando Single-Particle Diffraction”
Advanced Energy Materials, 12, 2103521 (2022)

[51] Daniel Weinstock, Hayley S. Hirsh, Oleg Yu Gorobtsov, Minghao Zhang, Jason Huang, Ryan Bouck, Jacob P. C. Ruff, Y. Shirley Meng, and Andrej Singer, “Structure-Selective Operando X-ray Spectroscopy”
ACS Energy Letters, 7, 261-266 (2022)


[50] O. Gorobtsov, L. Ponet, S. K. K. Patel, N. Hua, A. G. Shabalin, S. Hrkac, J. Wingert, D. Cela, J. M. Glownia, D. Zhu, R. Medapalli, M. Chollet, S. Artyukhin, E. E. Fullerton, O. G. Shpyrko, and A. Singer, “Femtosecond control of phonon dynamics near a magnetic order critical point”
Nature Communications, 12, 2865 (2021)

[49] Yifei Sun, Oleg Yu Gorobstov, Linqin Mu, Daniel Weinstock, Ryan Bouck, Wonsuk Cha, Nikolaos Bouklas, Feng Lin, Andrej Singer, “X-ray nanoimaging of crystal defects in single grains of solid-state electrolyte AlxLi7-3xLa3Zr2O12″
Nano Letters 21, 4570 (2021)

[48] Stefano Toso, Dmitry Baranov, Davide Altamura, Francesco Scattarella, Jakob Dahl, Xingzhi Wang, Sergio Marras, Paul Alivisatos, Andrej Singer, Cinzia Giannini, Liberato Manna, “Multilayer Diffraction Reveals That Colloidal Superlattices Approach the Structural Perfection of Single Crystals”
ACS Nano 15, 4, 6243-6256 (2021)


[47] Fei Yu, Qi Zhang, R Paxton Thedford, Andrej Singer, Detlef-M Smilgies, Michael O Thompson, Ulrich B Wiesner, “Block Copolymer Self-Assembly-Directed and Transient Laser Heating-Enabled Nanostructures toward Phononic and Photonic Quantum Materials”
ACS nano 14, 11273-11282 (2020)

[46] Z. Wang, O. Gorobtsov, and A. Singer, “An algorithm for Bragg coherent X-ray diffractive imaging of highly strained nanocrystals”
New Journal of Physics, 22, 013021 (2020)


[45] E. M. Susca, P. A. Beaucage, R. P. Thedford, A. Singer, S. M. Gruner, L. A. Estroff, and U. Wiesner, „Preparation of Macroscopic Block‐Copolymer‐Based Gyroidal Mesoscale Single Crystals by Solvent Evaporation“

Adv.Mater 31, 1902565 (2019)

[44] W. Walravens, E. Solano, F. Geenen, J. Dendooven, O. Gorobtsov, A. Tadjine, N. Mahmoud, P. P. Ding, J. P. C. Ruff, A. Singer, G. Roelkens, C. Delerue, C. Detavernier, and Z. Hens, “Setting Carriers Free: Healing Faulty Interfaces Promotes Delocalization and Transport in Nanocrystal Solids”

ACS Nano 13, 12774-12786 (2019)


[43] A. Singer, M. Zhang, S. Hy, D. Cela, C. Fang, B. Qiu, Y. Xia, Z. Liu, A. Ulvestad, N. Hua, J. Wingert, H. Liu, M. Sprung, A. V. Zozulya, E. Maxey, R. Harder, Y. S. Meng, and O. G. Shpyrko “Nucleation of dislocations and their dynamics in layered oxide cathode materials during battery charging”

Nature Energy, 3, 641–647 (2018) (2018)

[42] A. Singer, J. G. Ramirez, I. Valmianski, D. Cela, N. Hua, R. Kukreja, J. Wingert, O. Kovalchuk, J. M. Glownia, M. Sikiroski, M. Chollet, M. Holt, I. K. Schuller, and O. G. Shpyrko “Nonequilibrium Phase Precursors during a Photoexcited Insulator-to-Metal Transition in V2O3”

Phys. Rev. Lett. 120, 207601 (2018)


[41] N. Mukharamova, S. Lazarev, J.-M. Meijer, M. Chollet, A. Singer, R. Kurta, D. Dzhigaev, O. Gorobtsov, G. Williams, D. Zhu, Y. Feng, M. Sikorski, S. Song, A. Shabalin, T. Gurieva, E. Sulyanova, O. Yefanov, and I. Vartanyants,
Appl. Sci. 7, 519 (2017)

[40] F. Lin, Y. Liu, X. Yu, L. Cheng, A. Singer, O. G. Shpyrko, H. L. Xin, N. Tamura, C. Tian, T.-C. Weng, X.-Q. Yang, Y. S. Meng, D. Nordlund, W. Yang, and M. M. Doeff
Chem. Rev. 117, 13123 (2017)

[39] O. Y. Gorobtsov, G. Mercurio, G. Brenner, U. Lorenz, N. Gerasimova, R. P. Kurta, F. Hieke, P. Skopintsev, I. Zaluzhnyy, S. Lazarev, D. Dzhigaev, M. Rose, A. Singer, W. Wurth, and I. A. Vartanyants
Phys. Rev. A 95, 23843 (2017)


[38] A. Singer, S. K. K. Patel, V. Uhlíř, R. Kukreja, A. Ulvestad, E. M. Dufresne, A. R. Sandy, E. E. Fullerton, and O. G. Shpyrko, “Phase coexistence and pinning of charge density waves by interfaces in chromium”
Phys. Rev. B 94, 174110 (2016)

[37] A. Singer, S. K. K. Patel, R. Kukreja, V. Uhlíř, J. Wingert, S. Festersen, D. Zhu, J. M. Glownia, H. Lemke, S. Nelson, M. Kozina, K. Rossnagel, M. Bauer, B. M. Murphy, O. M. Magnussen, E. E. Fullerton, and O. G. Shpyrko, “Photoinduced Enhancement of the Charge Density Wave Amplitude”
Phys. Rev. Lett. 117, 056401 (2016)

[36] A. Singer, L. Boucheron, S. H. Dietze, D. Vine, I. McNulty, K. Jensen, E. R. Dufresne, R. O. Prum, S. G. J. Mochrie, O. G. Shpyrko, “Morphology and grain boundaries of photonic gyroid nanostructures in butterfly wing scales”
Science Advances 2, e1600149 (2016)

[35] A. G. Shabalin, J.-M. Meijer, R. Dronyak, O. M. Yefanov, A. Singer, R. P. Kurta, U. Lorenz, O. Y. Gorobtsov, D. Dzhigaev, S. Kalbfleisch, J. Gulden, A. V. Zozulya, M. Sprung, A. V. Petukhov, and I. A. Vartanyants, “Revealing Three-Dimensional Structure of an Individual Colloidal Crystal Grain by Coherent X-Ray Diffractive Imaging”
Phys. Rev. Lett. 117, 138002 (2016)

[34] J. W. Kim, A. Ulvestad, S. Manna, R. Harder, E. Fohtung, A. Singer, L. Boucheron, E. E. Fullerton, and O. G. Shpyrko, “Observation of x-ray radiation pressure effects on nanocrystals”
Journal of Applied Physics 120, 163102 (2016)

[33] D. Dzhigaev, A. Shabalin, T. Stankevič, U. Lorenz, R. P. Kurta, F. Seiboth, J. Wallentin, A. Singer, S. Lazarev, O. M. Yefanov, M. Borgström, M. N. Strikhanov, L. Samuelson, G. Falkenberg, C. G. Schroer, A. Mikkelsen, R. Feidenhans‘l, and I. A. Vartanyants, “Bragg coherent x-ray diffractive imaging of a single indium phosphide nanowire”
Journal of Optics 18, 064007 (2016)



[32] A. Ulvestad, J. Clark, A. Singer, D. Vine, H. M. Cho, R. Harder, Y. S. Meng e and O. G. Shpyrko, “In situ strain evolution during a disconnection event in a battery nanoparticle” 
Phys. Chem. Chem. Phys., 17, 10551-10555 (2015)

[31] A. Ulvestad, M. J. Welland, S.S.E. Collins, R. Harder, E. Maxey, J. Wingert, A. Singer, S. Hy, P. Mulvaney, P. Zapol, O.G. Shpyrko, “Avalanching strain dynamics during the hydriding phase transformation in individual palladium nanoparticles”
Nature Communications 6, 10092 (2015)

[30] J. Wingert, A. Singer, O. Shpyrko, “A new method for studying sub-pulse dynamics at synchrotron sources”
J. Synchrotron Radiat. 22, 1141 (2015)

[29] A. Ulvestad, A. Singer, J.N. Clark, H.M. Cho, J.W. Kim, R. Harder, J. Maser, Y.S. Meng, and O.G. Shpyrko, “3D operando imaging of topological defect dynamics in battery nanoparticles”
Science 348, 1344 (2015)

[28] A. Singer, M. Marsh, S. Dietze, V. Uhlíř, Y. Li, D. A. Walko, E. M. Dufresne, G. Srajer, M. P. Cosgriff, P. G. Evans, E. E. Fullerton, and O. G. Shpyrko, “Condensation of collective charge ordering in Chromium”
Phys. Rev. B 91, 115134 (2015)

[27] E. A. Sulyanova, A. Shabalin, A. V. Zozulya, J.-M. Meijer, D. Dzhigaev, O. Gorobtsov, R. P. Kurta, S. Lazarev, U. Lorenz, A. Singer, O. Yefanov, I. Zaluzhnyy, I. Besedin, M. Sprung, A. V. Petukhov, and I. A. Vartanyants, “Structural Evolution of Colloidal Crystal Films in the Process of Melting Revealed by Bragg Peak Analysis”
Langmuir 31, 5274 (2015)

[26] I. A. Vartanyants and A. Singer, Book chapter in “Synchrotron Light Sources and Free-Electron Lasers” (Springer) edited by E. Jaeschke, S. Khan, J. Schneider and J. Hastings


[25] A. Singer, A. Ulvestad, H.-M. Cho, J. W. Kim, J. Maser, R. Harder, Y. S. Meng, and O. G. Shpyrko, “Nonequilibrium Structural Dynamics of Nanoparticles in LiNi1/2Mn3/2O4 Cathode under Operando Conditions”
Nano Lett. 14, 5295 (2014)

[24] A. Ulvestad, A. Singer, H.-M. Cho, J. N. Clark, R. Harder, J. Maser, Y. S. Meng, and O. G. Shpyrko, “Single Particle Nanomechanics in Operando Batteries via Lensless Strain Mapping”
Nano Lett. 14, 5123 (2014)

[23] A. Singer and I. A. Vartanyants, “Coherence properties of focused X-ray beams at high-brilliance synchrotron sources”
J. Synchrotron Radiat. 21, 5 (2014)

[22]     A. Singer, U. Lorenz, A. Marras, A. Klyuev, J. Becker, K. Schlage, P. Skopintsev, O. Gorobtsov, A. Shabalin, H.-C. H.-C. Wille, H. Franz, H. Graafsma, and I. A. Vartanyants, “Intensity Interferometry of Single X-Ray Pulses from a Synchrotron Storage Ring”
Phys. Rev. Lett. 113, 064801 (2014)

[21] J. M. Meijer, A. Shabalin, R. Dronyak, O. M. Yefanov, A. Singer, R. P. Kurta, U. Lorenz, O. Gorobstov, D. Dzhigaev, and J. Gulden, “Double hexagonal close-packed structure revealed in a single colloidal crystal grain by Bragg rod analysis”
J. Appl. Crystallogr. 47, 1199 (2014)

[20] P. Skopintsev, A. Singer, J. Bach, L. Muller, B. Beyersdorff, S. Schleitzer, O. Gorobtsov, A. Shabalin, R. P. Kurta, and D. Dzhigaev, “Characterization of spatial coherence of synchrotron radiation with non-redundant arrays of apertures”
J. Synchrotron Radiat. 21 (2014)

[19] S. Song, D. Zhu, A. Singer, J. Wu, M. Sikorski, M. Chollet, H. Lemke, R. Alonso-Mori, J. M. Glownia, and J. Krzywinski, “Intensity interferometry measurements with hard x-ray FEL pulses at the Linac Coherent Light Source”
SPIE Optical Engineering+ Applications 9210, 92100M (2014)

[18] D. Dzhigaev, U. Lorenz, R. P. Kurta, F. Seiboth, T. Stankevic, S. Mickevicius, A. Singer, A. Shabalin, O. M. Yefanov, M. N. Strikhanov, G. Falkenberg, C. G. Schroer, R. Feidenhans’l, and I. A. Vartanyants, “Ptychographical imaging of the phase vortices in the x-ray beam formed by nanofocusing lenses”
J. Phys. Conf. Ser. 499, 12020 (2014)


[17] A. Singer, U. Lorenz, F. Sorgenfrei, N. Gerasimova, J. Gulden, O. M. Yefanov, R. P. Kurta, A. Shabalin, R. Dronyak, R. Treusch, V. Kocharyan, E. Weckert, W. Wurth, and I. A. Vartanyants, “Hanbury Brown-Twiss Interferometry at a Free-Electron Laser”
Phys. Rev. Lett. 111, 034802 (2013)

[16] C. Kraus, A. Singer, K. Valerius, and C. Weinheimer, “Limit on sterile neutrino contribution from the Mainz Neutrino Mass Experiment”
Eur. Phys. J. C 73, 2323 (2013)

[15] A. V Zozulya, J.-M. Meijer, A. Shabalin, A. Ricci, F. Westermeier, R. P. Kurta, U. Lorenz, A. Singer, O. Yefanov, a V Petukhov, M. Sprung, and I. a Vartanyants, “In situ X-ray crystallographic study of the structural evolution of colloidal crystals upon heating”
J. Appl. Crystallogr. 46, 903 (2013)

[14] D. D. Mai, J. Hallmann, T. Reusch, M. Osterhoff, S. Düsterer, R. Treusch, A. Singer, M. Beckers, T. Gorniak, and T. Senkbeil, “Single pulse coherence measurements in the water window at the free-electron laser FLASH”
Opt. Express 21, 13005 (2013)

[13] R. P. Kurta, B. I. Ostrovskii, A. Singer, O. Y. Gorobtsov, A. Shabalin, D. Dzhigaev, O. M. Yefanov, A. V Zozulya, M. Sprung, and I. A. Vartanyants, “X-ray cross-correlation analysis of liquid crystal membranes in the vicinity of the hexatic-smectic phase transition”
Phys. Rev. E 88, 44501 (2013)


[12] A. Singer, F. Sorgenfrei, A. P. Mancuso, N. Gerasimova, O. M. Yefanov, J. Gulden, T. Gorniak, T. Senkbeil, A. Sakdinawat, Y. Liu, D. Attwood, S. Dziarzhytski, D. D. Mai, R. Treusch, E. Weckert, T. Salditt, A. Rosenhahn, W. Wurth, and I. A. Vartanyants, “Spatial and temporal coherence properties of single free-electron laser pulses”
Opt. Express 20, 17480 (2012)

[11] R. Dronyak, J. Gulden, O. M. Yefanov, A. Singer, T. Gorniak, T. Senkbeil, J.-M. J.-M. Meijer, A. Al-Shemmary, J. Hallmann, D. D. Mai, T. Reusch, D. Dzhigaev, R. P. Kurta, U. Lorenz, A. V Petukhov, S. Düsterer, R. Treusch, M. N. Strikhanov, E. Weckert, A. P. Mancuso, T. Salditt, A. Rosenhahn, and I. A. Vartanyants, “Dynamics of colloidal crystals studied by pump-probe experiments at FLASH”
Phys. Rev. B 86, 64303 (2012)

[10] J. Gulden, O. M. Yefanov, A. P. Mancuso, R. Dronyak, A. Singer, V. Bernátová, A. Burkhardt, O. Polozhentsev, A. Soldatov, M. Sprung, and I. A. Vartanyants, “Three-dimensional structure of a single colloidal crystal grain studied by coherent x-ray diffraction”
Opt. Express, 20, 4039 (2012)

[9] W. F. Schlotter, J. J. Turner, M. Rowen, P. Heimann, M. Holmes, O. Krupin, M. Messerschmidt, S. Moeller, J. Krzywinski, R. Soufli, M. Fernandez-Perea, N. Kelez, S. Lee, R. Coffee, G. Hays, M. Beye, N. Gerken, F. Sorgenfrei, S. Hau-Riege, L. Juha, J. Chalupsky, V. Hajkova, A. P. Mancuso, A. Singer, O. Yefanov, I. A. Vartanyants, G. Cadenazzi, B. Abbey, K. A. Nugent, H. Sinn, J. Luning, S. Schaffert, S. Eisebitt, W.-S. Lee, A. Scherz, A. R. Nilsson, and W. Wurth, “The soft x-ray instrument for materials studies at the linac coherent light source x-ray free-electron laser”
Rev. Sci. Instrum. 83, 43107 (2012)


[8] I. A. Vartanyants, A. Singer, A. P. Mancuso, O. M. Yefanov, A. Sakdinawat, Y. Liu, E. Bang, G. J. Williams, G. Cadenazzi, B. Abbey, H. Sinn, D. Attwood, K. A. Nugent, E. Weckert, T. Wang, D. Zhu, B. Wu, C. Graves, A. Scherz, J. J. Turner, W. F. Schlotter, M. Messerschmidt, J. Lüning, Y. Acremann, P. Heimann, D. C. Mancini, V. Joshi, J. Krzywinski, R. Soufli, M. Fernandez-Perea, S. Hau-Riege, A. G. Peele, Y. Feng, O. Krupin, S. Moeller, and W. Wurth, “Coherence Properties of Individual Femtosecond Pulses of an X-Ray Free-Electron Laser”
Phys. Rev. Lett. 107, 144801 (2011)

[7] A. Singer and I. A. Vartanyants, “Modelling of partially coherent radiation based on the coherent mode decomposition”
Proc. SPIE 8141, 814106, (2011)

[6] S. Roling, B. Siemer, M. Wöstmann, H. Zacharias, R. Mitzner, A. Singer, K. Tiedtke, and I. A. Vartanyants, “Temporal and spatial coherence properties of free-electron-laser pulses in the extreme ultraviolet regime”
Phys. Rev. ST Accel. Beams 14, 80701 (2011)


[5] I. A. Vartanyants and A. Singer, “Coherence properties of hard x-ray synchrotron sources and x-ray free-electron lasers”
New J. Phys. 12, 35004 (2010)

[4] I. A. Vartanyants, A. P. Mancuso, A. Singer, O. M. Yefanov, and J. Gulden, “Coherence measurements and coherent diffractive imaging at FLASH”
J. Phys. B At. Mol. Opt. Phys. 43, 194016 (2010)

[3] A. P. Mancuso, T. Gorniak, F. Staier, O. M. Yefanov, R. Barth, C. Christophis, B. Reime, J. Gulden, A. Singer, M. E. Pettit, T. Nisius, T. Wilhein, C. Gutt, G. Grübel, N. Guerassimova, R. Treusch, J. Feldhaus, S. Eisebitt, E. Weckert, M. Grunze, A. Rosenhahn, and I. A. Vartanyants, “Coherent imaging of biological samples with femtosecond pulses at the free-electron laser FLASH”
New J. Phys. 12, 35003 (2010)


[2] A. P. Mancuso, A. Schropp, B. Reime, L.-M. Stadler, A. Singer, J. Gulden, S. Streit-Nierobisch, C. Gutt, G. Grübel, J. Feldhaus, F. Staier, R. Barth, A. Rosenhahn, M. Grunze, T. Nisius, T. Wilhein, D. Stickler, H. Stillrich, R. Frömter, H.-P. Oepen, M. Martins, B. Pfau, C. M. Günther, R. Könnecke, S. Eisebitt, B. Faatz, N. Guerassimova, K. Honkavaara, V. Kocharyan, R. Treusch, E. Saldin, S. Schreiber, E. A. Schneidmiller, M. V Yurkov, E. Weckert, and I. A. Vartanyants, “Coherent-Pulse 2D Crystallography Using a Free-Electron Laser X-Ray Source”
Phys. Rev. Lett. 102, 35502 (2009)


[1] A. Singer, I. A. Vartanyants, M. Kuhlmann, S. Duesterer, R. Treusch, and J. Feldhaus, “Transverse Coherence Properties of the Free-Electron-Laser FLASH at DESY”
Phys. Rev. Lett. 101, 254801 (2008)