Publications

Google scholar ORCiD

• Rotational orientation control of a ground state ortho-H2 dissociation on a metal surface
  H. Chadwick, G. Zhang , C. J. Baker , P. L. Smith and G. Alexandrowicz, Nat. Comm., 4625, 16, (2025)
  https://doi.org/10.1038/s41467-025-59928-3

• Empirical determination of scattering matrices from magnetic molecular interferometry for gas-surface collisions.
  H. Chadwick and G. Alexandrowicz, J. Phys. Chem. C., 128, 20913, (2024)
  https://doi.org/10.1021/acs.jpcc.4c06913 

• Characterisation of magnetic atomic and molecular beamlines for the extraction of empirical scattering-matrices.
  H. Chadwick, Phys. Chem. Chem. Phys., 26, 19630, (2024)
  https://doi.org/10.1039/D4CP01785D

• Magnetic beam spin encoding; a reciprocal space approach for neutral beam microscopy.

M. Lowe, Y. Alkoby, H. Chadwick, and G. Alexandrowicz, Nat. Comm., 7046, 15, (2024)

https://doi.org/10.1038/s41467-024-51175-2 

• A state-selected continuous wave laser excitation method for determining CO2’s rotational state distribution in a supersonic molecular beam.
  C. Jansen, R. van Lent, L. B. F. Juurlink and H. Chadwick, Rev. Sci. Inst., 95, 055111, (2024)
  https://doi.org/10.1063/5.0203641

• Editorial for dynamics at surfaces: understanding energy dissipation and physicochemical processes at the atomic and molecular level.
  A. Tamtögl, H. Chadwick, B. A. J. Lechner and M. Sacchi, Frontiers in Chemistry, 12, 1411748, (2024)
  https://doi.org/10.3389/fchem.2024.1411748

• Temperature dependent stereodynamics in surface scattering measured through subtle changes in the molecular wave function.
  H. Chadwick and G. Alexandrowicz, Faraday Discussions, 251, 76, (2024)
  https://doi.org/10.1039/D4FD00007B

• Measuring surface phonons using molecular spin-echo.
  H. Chadwick and G. Alexandrowicz, Phys. Chem. Chem. Phys., 24, 14198, (2022)
  https://doi.org/10.1039/D2CP01372J

• Multiple echoes in beam spin-echo spectroscopy and their effect on measurements of ultra-fast dynamics.
  H. Chadwick, T. J. D. Carter, D. Butkovicova, Y. Alkoby and G. Alexandrowicz, Journal of Physics: Condensed Matter 34, 345901, (2022)
  https://doi.org/10.1088/1361-648X/ac7765

• Stopping molecular rotation using coherent ultra-low-energy magnetic manipulations.
  H. Chadwick, M. F. Somers, A. C. Stewart, Y. Alkoby, T. J. D. Carter, D. Butkovicova and G. Alexandrowicz, Nature Communications, 13, 2287, (2022)
  https://doi.org/10.1038/s41467-022-29830-3

• Molecular spin echoes: multiple magnetic coherences in molecule surface scattering experiments.
  H. Chadwick, Y. Alkoby, J. T. Cantin, D. Lindebaum, O. Godsi, T. Maniv and G. Alexandrowicz, Phys. Chem. Chem. Phys. 23, 7673, (2021)
  https://doi.org/10.1039/D0CP05399F

• Setting benchmarks for modelling gas-surface interactions using coherent control of rotational states.
  Y. Alkoby+, H. Chadwick+, O. Godsi, H. Labiad, M. Bergin, J. T. Cantin, I. Litvin, T. Maniv and G. Alexandrowicz, Nature Communications, 11, 3110, (2020) +Equal contribution
  https://doi.org/10.1038/s41467-020-16930-1

• Differential cross sections and collision-induced rotational alignment in inelastic scattering of NO(X) by Xe.
  M. Brouard, H. Chadwick, S. D. S. Gordon, C. G. Heid, B. Hornung, B. Nichols, J. Kłos, P. G. Jambrina and F. J. Aoiz. Chinese Journal of Chemical Physics, 33, 217, (2020)
  https://doi.org/10.1063/1674-0068/cjcp2002020

• A dynamical study of the dissociative chemisorption of CHD3 on Pd(111).
  N. Gerrits, H. Chadwick and G.J.Kroes. J. Phys. Chem. C, 123, 24013, (2019)
  https://doi.org/10.1021/acs.jpcc.9b05757

• CHD3 dissociation on the kinked Pt(210) surface: A comparison of experiment and theory.
  H. Chadwick, A. Gutiérrez-González, R. D. Beck and G.J. Kroes. J. Phys. Chem. C, 123, 14530, (2019)
  https://doi.org/10.1021/acs.jpcc.9b03051

• Transferability of the SRP32-vdW specific reaction parameter functional to CHD3 dissociation on Pt(110)-(2x1).
  H. Chadwick, A. Gutiérrez-González, R. D. Beck and G.J. Kroes. J. Chem. Phys., 150, 124702 (2019)
  https://doi.org/10.1063/1.5081005

• Incident angle dependence of CHD3 dissociation on the stepped Pt(211) surface.
  H. Chadwick, A. Gutiérrez-González, D. Migliorini, R. D. Beck and G.J. Kroes. J. Phys. Chem. C 122, 19652, (2018)
  https://doi.org/10.1021/acs.jpcc.8b05887

• Methane on a stepped surface: Dynamical insights on the dissociation of CHD3 on Pt(111) and Pt(211).
  D. Migliorini, H. Chadwick and G.J. Kroes. J. Chem. Phys. 149, 094701, (2018)
  https://doi.org/10.1063/1.5046065

• CHD3 dissociation on Pt(111): A comparison of the reaction dynamics based on the PBE functional and on a specific reaction parameter functional.
  H. Chadwick+, D. Migliorini+ and G.J. Kroes. J. Chem. Phys. 149, 044701, (2018) +Equal contribution
  https://doi.org/10.1063/1.5039458

• Methane dissociation on the steps and terraces of Pt(211) resolved by quantum state and impact site.
  H. Chadwick, H. Guo, A. Gutiérrez-González, J. P. Menzel, B. Jackson and R. D. Beck. J. Chem. Phys. 148, 014701, (2018)
  https://doi.org/10.1063/1.5008567

• Surface reaction barriometry: methane dissociation on flat and stepped transition metal surfaces.
  D. Migliorini+, H. Chadwick+, F. Nattino, A. Gutiérrez-González, E. Dombrowski, E. A. High, H. Guo, A. L. Utz, B. Jackson, R. D. Beck and G.J. Kroes. J. Phys. Chem. Lett. 8, 4177, (2017) +Equal contribution
  https://doi.org/10.1021/acs.jpclett.7b01905

• An experimental study of OH(A 2Σ+) + H2: Electronic quenching, rotational energy transfer, and collisional depolarization.
  M. Brouard, J. Lawlor, G. McCrudden, T. Perkins, S. A. Seamons, P. Stevenson, H. Chadwick and F. J. Aoiz. J. Chem. Phys. 146, 244313, (2017)
  https://doi.org/10.1063/1.4989567

• Quantum state-resolved studies of chemisorption reactions.
  H. Chadwick, R. D. Beck. Annu. Rev. Phys. Chem., 68, 39, (2017)
  https://doi.org/10.1146/annurev-physchem-052516-044910

• Quantum state resolved molecular beam reflectivity measurements: CH4 dissociation on Pt(111).
  H. Chadwick, A. Gutiérrez-González and R. D. Beck. J. Chem. Phys., 145, 174707, (2016)
  https://doi.org/10.1063/1.4966921

• Stereodynamics in NO(X) + Ar inelastic collisions.
  M. Brouard, H. Chadwick, S. D. S. Gordon, B. Hornung, B. Nichols, F. J. Aoiz and S. Stolte. J. Chem. Phys. 144, 224301, (2016)
  https://doi.org/10.1063/1.4952649

• Quantum state resolved gas/surface reactivity measurements: A tutorial review.
  H. Chadwick and R. D. Beck. Chemical Society Reviews, 45, 3576, (2016)
  https://doi.org/10.1039/C5CS00476D

• Rotational orientation effects in NO(X) + Ar inelastic collisions.
  M. Brouard, H. Chadwick, S. D. S Gordon, B. Hornung, B. Nichols, F. J. Aoiz and S. Stolte. J. Phys. Chem. A., 119, 12404, (2015)
  https://doi.org/10.1021/acs.jpca.5b07846

• The negligible role of C-H stretch excitation in the physisorption of CH4 on Pt(111).
  L. Chen, H. Ueta, H. Chadwick and R. D. Beck, J. Phys. Chem. C, 119, 14499, (2015)
  https://doi.org/10.1021/jp5064897

• Steric effects and quantum interference in the inelastic scattering of NO(X) + Ar.
  B. Nichols, H. Chadwick, S. D. S. Gordon, C. J. Eyles, B. Hornung, M. Brouard, M. H. Alexander, F. J. Aoiz and S. Stolte, Chemical Science, 6, 2202, (2015)
  https://doi.org/10.1039/C4SC03842H

• Inelastic scattering of NO by Kr: Rotational polarization over a rainbow.
  H. Chadwick, B. Nichols, S. D. S. Gordon, B. Hornung, E. Squires, M. Brouard, J. Kłos, M. H. Alexander, F. J. Aoiz and S. Stolte J. Phys. Chem. Lett., 5, 3296 (2014)
  https://doi.org/10.1021/jz501621c

• Fully quantum state-resolved inelastic scattering of NO(X) + Kr: Differential cross sections and product rotational alignment.
  M. Brouard, H. Chadwick, S. D. S. Gordon, B. Hornung, B. Nichols, F. J. Aoiz and S. Stolte J. Chem. Phys., 141, 164306, (2014)
  https://doi.org/10.1063/1.4897558

• Ab initio molecular dynamics calculations versus quantum state resolved experiments on CHD3 on Pt(111): New insights into a prototypical gas-surface reaction.
  F. Nattino, H. Ueta, H. Chadwick, M. E. van Reijzen, R. D. Beck, B. Jackson, M. C. van Hermert and G.J. Kroes, J. Phys. Chem. Lett. 5, 1294, (2014)
  https://doi.org/10.1021/jz500233n

• Collisional depolarisation in electronically excited radicals.
  H. Chadwick, M. Brouard, T. Perkins and F. J. Aoiz, Int. Rev. Phys. Chem., 79, 33 (2014)
  https://doi.org/10.1080/0144235X.2014.891855

• The collisional depolarization of OH(A 2∑+) and NO(A 2∑+) with Kr.
  H. Chadwick, M. Brouard, Y.P. Chang, C. J. Eyles, G. McCrudden, T. Perkins, S. A. Seamons, J. Kłos, M. H. Alexander, P. J. Dagdigian, D. Herráez-Aguilar and F. J. Aoiz, J. Chem. Phys., 054306, 140, (2014)
  https://doi.org/10.1063/1.4863446

• Quantum state specific reactant preparation in a molecular beam by rapid adiabatic passage.
  H. Chadwick, P. M. Hundt, M. E. van Reijzen, B. L. Yoder and R. D. Beck, J. Chem. Phys., 140, 034321, (2014)
  https://doi.org/10.1063/1.4861054

• Electronic quenching of OH A 2Σ+ induced by collisions with Kr atoms.
  J. H. Lehman, M. I. Lester, J. Kłos, M. H. Alexander, P. J. Dagdigian, D. Herráez.-Aguilar, F. J. Aoiz, M. Brouard, H. Chadwick, T. Perkins and S. A. Seamons. J. Phys. Chem. A, 117, 13481, (2013)
  https://doi.org/10.1021/jp407035p

• The fully quantum state-resolved inelastic scattering of NO(X) + Ne: Experiment and theory.
  M. Brouard, H. Chadwick, C. J. Eyles, B. Hornung, B. Nichols, J. M. Scott, F. J. Aoiz, J. Kłos, S. Stolte and X. Zhang. Mol. Phys., 111, 1759, (2013)
  https://doi.org/10.1080/00268976.2013.783940

• Rotational alignment effects in NO(X) + Ar inelastic collisions: An experimental study.
  M. Brouard, H. Chadwick, C. J. Eyles, B. Hornung, B. Nichols, F. J. Aoiz, P. G. Jambrina and S. Stolte. J. Chem. Phys. 138, 104310, (2013)
  https://doi.org/10.1063/1.4792159

• Rotational alignment effects in NO(X) + Ar inelastic collisions: A theoretical study.
  M. Brouard, H. Chadwick, C. J. Eyles, B. Hornung, B. Nichols, F. J. Aoiz, P. G. Jambrina, S.Stolte and M. P. de Miranda,. J. Chem. Phys. 108, 104309, (2013)
  https://doi.org/10.1063/1.4792158

• The hyperfine structure of NO(A).
  M. Brouard, H. Chadwick, Y.P. Chang, B. J. Howard, S. Marinakis, N. Screen, S. A. Seamons and A. La Via. J. Mol. Spec. 282, 42, (2012)
  https://doi.org/10.1016/j.jms.2012.11.003

• A new potential energy surface for OH(A 2Σ+)–Kr: The van der Waals complex and inelastic scattering.
  H. Chadwick, M. Brouard, Y.P. Chang, C. J. Eyles, T. Perkins, S. A. Seamons J. Kłos, M. H. Alexander and F. J. Aoiz. J. Chem. Phys. 137, 154305, (2012)
  https://doi.org/10.1063/1.4757859

•  Ab initio studies of the interaction potential for the Xe-NO(X) van der Waals complex: Bound states and fully quantum and quasi-classical scattering.
  J. Kłos, F. J. Aoiz, M. Menendez, M. Brouard, H. Chadwick, and C. J. Eyles. J. Chem. Phys. 137, 014312, (2012)
  https://doi.org/10.1063/1.4731286

• The effect of parity conservation on the spin-orbit conserving and spin-orbit changing differential cross-sections for the inelastic scattering of NO(X) by Ar.
  C. J. Eyles, M. Brouard, H. Chadwick, F. J. Aoiz, J. Kłos, A. Gijsbertsen, X. Zhang and S. Stolte. Phys. Chem. Chem. Phys. 14, 5420, (2012)
  https://doi.org/10.1039/C2CP23259F

• Fully Λ-doublet resolved state-to-state differential cross-sections for the inelastic scattering of NO(X) with Ar.
  C. J. Eyles, M. Brouard, H. Chadwick, B. Hornung, B. Nichols, C.-H. Yang, J. Kłos, F. J. Aoiz, A. Gijsbertsen, A. E. Wiskerke and S. Stolte. Phys. Chem. Chem. Phys. 14, 5403, (2012)
  https://doi.org/10.1039/C2CP23258H

• Collisional depolarization of OH(A) and NO(A) by Ar: A comparison of mechanisms.
  M. Brouard, H. Chadwick, Y.P. Chang, C. J. Eyles, F. J. Aoiz and J. Kłos. J. Chem. Phys. 135, 084306, (2011)
  https://doi.org/10.1063/1.3625638

• The k-j-j’ vector correlation in inelastic and reactive scattering.
  M. Brouard, H. Chadwick, C. J. Eyles, F. J. Aoiz and J. Kłos. J. Chem. Phys. 135, 084305, (2011)
  https://doi.org/10.1063/1.3625637

• Collisional depolarization of NO(A) by He and Ar studied by quantum beat spectroscopy.
  M. Brouard, H. Chadwick, Y.P. Chang, R. Cireasa, C. J. Eyles, A. O. La Via, N. Screen, F. J. Aoiz, and J. Kłos. J. Chem. Phys. 131, 104307, (2009)
  https://doi.org/10.1063/1.3212608

• Applications of Zeeman quantum beat spectroscopy to angular momentum polarization studies.
  M. Brouard, H. Chadwick, Y.P. Chang, R. Cireasa, C. J. Eyles. Physica Scripta 80, 048120, (2009)
  https://doi.org/10.1088/0031-8949/80/04/048120

•  Elastic depolarization of OH(A) by He and Ar: A comparative study.
  M. L. Costen, R. Livingstone, K. G. McKendrick, G. Paterson, M. Brouard, H. Chadwick, Y.P. Chang, C. J. Eyles, F. J. Aoiz and J. Kłos. J. Phys. Chem. A 113, 15156, (2009)
  https://doi.org/10.1021/jp905348c