Publications
| 2024 |
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[290] | I. Doran, M. Beyer, and F. Merkt «Rotational and spin-rotational level structure of para-H2+ from high-resolution multichannel-quantum-theory-assisted Rydberg-state spectroscopy» Phys. Rev. A 110(6), 062804 (2024) doi: external page 10.1103/PhysRevA.110.062804 |
[289] | F. B. V. Martins, V. Zhelyazkova, and F. Merkt «Cold reactions of He+ with OCS and CO2: competitive kinetics and the effects of the molecular multipole moments» Phys. Chem. Chem. Phys. 26, 24799-24808 (2024) doi: external page 10.1039/d4cp02871f |
[288] | G. Clausen, L. Gabriel, J. A. Agner, H. Schmutz, T. Thiele, A. Wallraff, and F. Merkt «Combining laser cooling and Zeeman deceleration for precision spectroscopy in supersonic beams» Phys. Rev. A 110(4), 042802 (2024) doi: external page 10.1103/physreva.110.042802 |
[287] | C. Kreis, J. R. Schmitz, and F. Merkt «Characterisation of the ground X+ 2∏Ω and first excited A+ 2∑+ electronic states of MgO+ by high-resolution photoelectron spectroscopy» Phys. Chem. Chem. Phys. 26(28), 19359-19368 (2024) doi: external page 10.1039/d4cp01944j |
[286] | C. Kreis, J. R. Schmitz, and F. Merkt «High-Resolution Photoelectron Spectroscopy of the Ground and First Excited Electronic States of MgXe+» J. Phys. Chem. A 128(16), 3149-3157 (2024) doi: external page 10.1021/acs.jpca.4c00940 |
[285] | H. Herburger, E. N. Toutoudaki, U. Hollenstein, and F. Merkt «High-resolution spectroscopy and MQDT analysis of the np and nf Rydberg series of Xe below the 2P3/2 ionization threshold» Phys. Rev. A 109(3), 032816 (2024) doi: external page 10.1103/PhysRevA.109.032816 |
[284] | C. Kreis, J. R. Schmitz, and F. Merkt «High-resolution photoelectron spectroscopy of the very weakly bound MgNe molecule» Mol. Phys. 122(15-16), e2297814 (2024) doi: external page 10.1080/00268976.2023.2297814 |
[283] | I. Doran, N. Hölsch, M. Beyer, and F. Merkt «The Zero-Quantum-Defect Method and the Fundamental Vibrational Interval of H2+» Phys. Rev. Lett. 132(7), 073001 (2024) doi: external page 10.1103/PhysRevLett.132.073001 |
[282] | S. Scheidegger, and F. Merkt «Precision-Spectroscopic Determination of the Binding Energy of a Two-Body Quantum System: The Hydrogen Atom and the Proton-Size Puzzle» Phys. Rev. Lett. 132(11), 113001 (2024) doi: external page 10.1103/PhysRevLett.132.113001 |
[281] | R. Hahn, D. Schlander, V. Zhelyazkova, and F. Merkt «Opposite effects of the rotational and translational energy on the rates of ion-molecule reactions near 0 K: the D2+ + NH3 and D2+ + ND3 reactions» Phys. Rev. X 14(1), 011034 (2024) doi: external page 10.1103/PhysRevX.14.011034 |
| 2023 |
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[280] | S. Scheidegger, J. A. Agner, H. Schmutz, and F. Merkt «Metrology of Rydberg states of the hydrogen atom» Phys. Rev. A 108(4), 042803 (2023) doi: external page 10.1103/PhysRevA.108.042803 |
[279] | H. Herburger, V. Wirth, U. Hollenstein, and F. Merkt «Pulsed-ramped-field-ionisation zero-kinetic-energy photoelectron spectroscopy of the metastable rare-gas atoms Ar, Kr and Xe» Phys. Chem. Chem. Phys. 25(33), 22437-22454 (2023) doi: external page 10.1039/D3CP02881J |
[278] | G. Clausen, S. Scheidegger, J. A. Agner, H. Schmutz, and F. Merkt «Imaging-assisted single-photon Doppler-free laser spectroscopy and the ionization energy of metastable triplet helium» Phys. Rev. Lett. 131(10), 103001 (2023) doi: external page 10.1103/physrevlett.131.103001 |
[277] | J. R. Schmitz, U. Hollenstein, and F. Merkt «Precise determination of adiabatic ionisation energies oflarge polyatomic molecules: p-diaminobenzene» Mol. Phys. 121(22), e2232888 (2023) doi: external page 10.1080/00268976.2023.2232888 |
[276] | N. Hölsch, I. Doran, F. Merkt, J. Hussels, C.-F. Cheng, E. J. Salumbides, H. L. Bethlem, K. S. E. Eikema, M. Beyer, W. Ubachs, and Ch. Jungen «Ionization and dissociation energies of HD and dipole-induced g/u-symmetry breaking» Phys. Rev. A 108(2), 022811 (2023) doi: external page 10.1103/PhysRevA.108.022811 |
[275] | F. B. V. Martins, V. Zhelyazkova, A. Osterwalder, and F. Merkt «Cold ion-molecule chemistry: The very different reactions of He+ with CO and NO» Chimia 77(4), 221-224 (2023) doi: external page 10.2533/chimia.2023.221 |
[274] | V. Zhelyazkova, F. B. V. Martins, S. Schilling, and F. Merkt «Reaction of an ion and a free radical near 0 K: He+ + NO → He + N+ + O» J. Phys. Chem. A 127(6), 1458-1468 (2023) doi: external page 10.1021/acs.jpca.2c08221 |
[273] | C. Kreis, M. Holdener, M. Génévriez, and F. Merkt «High-resolution photoelectron spectroscopy of the ground and first excited electronic states of MgKr+» Mol. Phys. 121(17-18), e2152746 (2023) doi: external page 10.1080/00268976.2022.2152746 |
| 2022 |
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[272] | J. A. Agner, S. Albert, P. Allmendinger, U. Hollenstein, A. Hugi, P. Jouy, K. Keppler, M. Mangold, F. Merkt, and M. Quack «High-resolution spectroscopic measurements of cold samples in supersonic beams using a QCL dual-comb spectrometer» Mol. Phys. 120(15–16), e2094297 (2022) doi: external page 10.1080/00268976.2022.2094297 |
[271] | N. Hölsch, I. Doran, M. Beyer, and F. Merkt «Precision millimetre-wave spectroscopy and calculation of the Stark manifolds in high Rydberg states of para-H2» J. Mol. Spectrosc. 387, 111648 (2022) doi: external page 10.1016/j.jms.2022.111648 |
[270] | F. B. V. Martins, V. Zhelyazkova, and F. Merkt «Effects of the charge-dipole and charge-quadrupole interactions on the He+ + CO reaction rate coefficients at low collision energies» New J. Phys. 24, 113003 (2022) doi: external page 10.1088/1367-2630/ac8a0b |
[269] | K. Höveler, J. Deiglmayr, J. A. Agner, R. Hahn, V. Zhelyazkova, and F. Merkt «Observation of quantum capture in an ion-molecule reaction» Phys. Rev. A 106(5), 052806 (2022) doi: external page 10.1103/PhysRevA.106.052806 |
[268] | S. Scheidegger, D. Schlander, J. A. Agner, H. Schmutz, P. Jansen, and F. Merkt |
[267] | C. Kreis, U. Hollenstein, and F. Merkt |
[266] | M. Beyer and F. Merkt |
[265] | V. Zhelyazkova, F. B. V. Martins, and F. Merkt «Multipole-moment effects in ion-molecule reactions at low temperatures: part III — the He+ + CH4 and He+ + CD4 reactions at low collision energies and the effect of the charge-octupole interaction» Phys. Chem. Chem. Phys. 24(26), 16360-16373 (2022) doi: external page 10.1039/D1CP05861D |
[264] | J. Hussels, N. Hölsch, C.-F. Cheng, E. J. Salumbides, H. L. Bethlem, K. S. E. Eikema, Ch. Jungen, M. Beyer, F. Merkt, and W. Ubachs |
[263] | M. Génévriez, M. Holdener, C. Kreis, and F. Merkt |
[262] | F. Merkt, K. Höveler and J. Deiglmayr |
[261] | V. Zhelyazkova, F. B. V. Martins, M. Žeško, and F. Merkt |
| 2021 |
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[260] | F. B. V. Martins, V. Zhelyazkova, Ch. Seiler, and F. Merkt |
[259] | V. Zhelyazkova, F. B. V. Martins, J. A. Agner, H. Schmutz, and F. Merkt |
[258] | M. Génévriez, D. Wehrli, T. Berglitsch, and F. Merkt |
[257] | K. Höveler, J. Deiglmayr, and F. Merkt |
[256] | D. Wehrli, M. Génévriez, S. Knecht, M. Reiher, and F. Merkt |
[255] | G. Clausen, P. Jansen, S. Scheidegger, J. A. Agner, H. Schmutz, and F. Merkt |
[254] | D. Husmann, L.-G. Bernier, M. Bertrand, D. Calonico, K. Chaloulos, G. Clausen, C. Clivati, J. Faist, E. Heiri, U. Hollenstein, A. Johnson, F. Mauchle, Z. Meir, F. Merkt, A. Mura, G. Scalari, S. Scheidegger, H. Schmutz, M. Sinhal, S. Willitsch, and J. Morel |
[253] | D. Wehrli, M. Génévriez, and F. Merkt |
[252] | D. Wehrli, U. Hollenstein and F. Merkt |
[251] | K. Höveler, J. Deiglmayr, J. A. Agner, H. Schmutz and F. Merkt |
2018 | |
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[230] | N. Hölsch, M. Beyer, and F. Merkt «Nondiabatic effects on the positions and lifetimes of the low-lying rovibrational levels of the GK 1Σg+ and H 1Σg+ states of H2» Phys. Chem. Chem. Phys. 20(42), 26837-26845 (2018) doi: external page 10.1039/c8cp05233f |
[229] | P. Jansen, L. Semeria, and F. Merkt «Fundamental vibration frequency and rotational structure of the first excited vibrational level of the molecular helium ion (He2+)» J. Chem. Phys. 149(15), 154302 (2018) doi: external page 10.1063/1.5051089 |
[227] | L. Semeria, P. Jansen, G. Clausen, J. A. Agner, H. Schmutz, and F. Merkt «Molecular-beam resonance method with Zeeman-decelerated samples: Application to metastable helium molecules» Phys. Rev. A 98(6), 062518 (2018) doi: external page 10.1103/PhysRevA.98.062518 |
[226] | M. Beyer, and F. Merkt «Hyperfine-interaction-induced g/u mixing and its implication on the existence of the first excited vibrational level of the A+ 2Σu+ state of H2+ and on the scattering length of the H + H+ collision» J. Chem. Phys. 149(21), 214301 (2018) doi: external page 10.1063/1.5046147 |
[225] | M. Beyer, and F. Merkt «Communication: Heavy Rydberg states of HD and the electron affinity of the deuterium atom» J. Chem. Phys. 149(3), 031102 (2018) doi: external page 10.1063/1.5043186 |
[224] | M. Beyer, F. Merkt «Half-collision approach to cold chemistry: Shape resonances, elastic scattering and radiative association in the H+ + H and D+ + D collision systems» Phys. Rev. X 8(3), 031085 (2018) doi: external page 10.1103/Phys.RevX.8.01085 |
[223] | C.-F. Cheng, J. Hussels, M. Niu, H. L. Bethlem, K. S. E. Eikema, E. J. Salumbides, W. Ubachs, M. Beyer, N. Hölsch, J. A. Agner, F. Merkt, L.-G. Tao, S.-M. Hu, and Ch. Jungen «Dissociation energy of the hydrogen molecule at 10-9 accuracy» Phys. Rev. Lett. 121(1), 013001 (2018) doi: external page 10.1103/PhysRevLett.121.013001 |
[222] | C. Lauzin, H. Schmutz, J. A. Agner and F. Merkt «Chirped-pulse millimetre-wave spectrometer for the 140-180 GHz region» Mol. Phys. 116(23-24), 3656-3665 (2018) doi: external page 10.1080/00268976.2018.1467055 |
[221] | U. Jacovella and F. Merkt «High-resolution photoelectron spectrum of the origin band of the ˜X+ 2E ← ˜X 1A1 ionizing transition of propyne» Mol. Phys. 116(23-24), 3602-3606 (2018) doi: external page 10.1080/00268976.2018.1451002 |
[220] | M. Beyer, N. Hölsch, J. A. Agner, J. Deiglmayr, H. Schmutz, and F. Merkt «Metrology of high-n Rydberg states of molecular hydrogen with Δν/ν=2×10−10 accuracy» Phys. Rev. A. 97(1), 012501 (2018) doi: external page 10.1103/PhysRevA.97.012501 |
[219] | P. Jansen, L. Semeria, and F. Merkt «Determination of the spin-rotation fine structure of He2+» Phys. Rev. Lett. 120(4), 043001 (2018) doi: external page 10.1103/PhysRevLett.120.043001 |
[218] | U. Jacovella, C. J. Stein, M. Grütter, L. Freitag, C. Lauzin, M. Reiher, and F. Merkt «Structure and dynamics of the radical cation of ethane arising from the Jahn-Teller and Pseudo-Jahn-Teller effects» Phys. Chem. Chem. Phys., 20(2), 1072-1081 (2018) doi: external page 10.1039/C7CP06907C |
[217] | U. Jacovella, H. J. Wörner, and F. Merkt «Jahn-Teller effect and large-amplitude motion in CH4+ studied by high-resolution photoelectron spectroscopy of CH4» J. Mol. Spectrosc. 343, 62-75 (2018) doi: external page 10.1016/j.jms.2017.08.002 |
M. Peper, J. Deiglmayr «Trendbericht Physikalische Chemie 2017: Elektronisch höchst angeregte Moleküle» Nachrichten aus der Chemie 66(3), 303-306 (2018) doi: external page 10.1002/nadc.20184071831 |
2003 | |
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[67] | H. J. Wörner, U. Hollenstein, and F. Merkt, «Multichannel quantum defect theory and high-resolution spectroscopy of the hyperfine structure of high Rydberg states of 83Kr» Phys. Rev. A 68(3), 032510 (2003) doi: external page 10.1103/PhysRevA.68.032510 |
[66] | G. M. Greetham, U. Hollenstein, R. Seiler, W. Ubachs, and F. Merkt, «High-resolution VUV photoionization spectroscopy of HD between the X 2Σg+ v+=0 and v+=1 thresholds» Phys. Chem. Chem. Phys. 5(12), 2528-2534 (2003) doi: external page 10.1039/b302876n |
[65] | S. Willitsch, J. M. Dyke, and F. Merkt, «Generation and high-resolution photoelectron spectroscopy of small organic radicals in cold supersonic expansions» Helv. Chim. Acta 86(4), 1152-1166 (2003) doi: external page 10.1002/hlca.200390100 |
[64] | R. Seiler, U. Hollenstein, T. P. Softley, and F. Merkt, «High-resolution threshold-ionization spectroscopy of NH3» J. Chem. Phys. 118(22), 10024-10033 (2003) doi: external page 10.1063/1.1571528 |
[63] | S. R. Procter, Y. Yamakita, F. Merkt, and T. P. Softley, «Controlling the motion of hydrogen molecules» Chem. Phys. Lett. 374(5-6), 667-675 (2003) doi: external page 10.1016/S0009-2614(03)00812-1 |
[62] | A. Wüest and F. Merkt, «Determination of the interaction potential of the ground electronic state of Ne2 by high-resolution vacuum ultraviolet laser spectroscopy» J. Chem. Phys. 118(19), 8807-8812 (2003) doi: external page 10.1063/1.1566944 |
[61] | U. Hollenstein, R. Seiler, and F. Merkt, «Determination of the ionisation potential of krypton by Rydberg-state-resolved threshold-ionization spectroscopy» J. Phys. B: At. Mol. Opt. Phys. 36(5), 893-903 (2003) doi: external page 10.1088/0953-4075/36/5/309 |
[60] | S. Willitsch and F. Merkt, «Characterization of the ˜X 2A1 (0,0,0) ground vibronic state of CH2+ by pulsed-field-ionization zero-kinetic-energy photoelectron spectroscopy» J. Chem. Phys. 118(5), 2235-2241 (2003) doi: external page 10.1063/1.1531619 |
[59] | T.-K. Ha, P. Rupper, A. Wüest, and F. Merkt, «The lowest electronic states of Ne2+, Ar2+ and Kr2+: Comparison of theory and experiment» Mol. Phys. 101(6), 827-838 (2003) doi: external page 10.1080/0026897031000075624 |
2000 | |
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[46] | A. Osterwalder, R. Seiler, and F. Merkt, «Measurement of the hyperfine structure in low-l, high-n Rydberg states of ortho H2 by millimeter wave spectroscopy» J. Chem. Phys. 113(18), 7939-7944 (2000) doi: external page 10.1063/1.1315608 |
[45] | U. Hollenstein, H. Palm, and F. Merkt, «A broadly tunable extreme ultraviolet laser source with a 0.008 cm-1 bandwidth» Rev. Sci. Instrum. 71(11), 4023-4028 (2000) doi: external page 10.1063/1.1310344 |
[44] | F. Merkt, «High-resolution spectroscopy of high Rydberg states: Chemical and technological applications» Chimia 54(3), 89-95 (2000) |
[43] | R. Signorell and F. Merkt, «PFI-ZEKE photoelectron spectra of the methane cation and the dynamic Jahn-Teller effect» Faraday Discuss. 115, 205-228 (2000) doi: external page 10.1039/a909272b |
1997 | |
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[31] | R. Signorell, A. Wüest, and F. Merkt, «The first adiabatic ionization potential of Ar2» J. Chem. Phys. 107(24), 10819-10822 (1997) doi: external page 10.1063/1.474199 |
[30] | R. Signorell and F. Merkt, «General symmetry selection rules for the photoionization of polyatomic molecules» Mol. Phys. 92(5), 793-804 (1997) doi: external page 10.1080/002689797169745 |
[29] | H. Palm, R. Signorell, and F. Merkt, «On the role of ions in pulsed field ionization zero-kinetic-energy photoelectron spectroscopy» Phil. Trans. R. Soc. Lond. A 355(1729), 1551-1568 (1997) doi: external page 10.1098/rsta.1997.0076 |
[28] | H. Palm and F. Merkt, «Ion density effects in the pulsed field ionization of high Rydberg states» Chem. Phys. Lett. 270(1-2), 1-8 (1997) doi: external page 10.1016/S0009-2614(97)00322-9 |
[27] | F. Merkt, «Molecules in high Rydberg states» Ann. Rev. Phys. Chem. 48, 675-709 (1997) doi: external page 10.1146/annurev.physchem.48.1.675 |
[26] | R. Signorell, H. Palm, and F. Merkt, «Structure of the ammonium radical from a rotationally resolved photoelectron spectrum» J. Chem. Phys. 106(16), 6523-6533 (1997) doi: external page 10.1063/1.473653 |
[25] | T. P. Softley, S. R. Mackenzie, F. Merkt, and D. Rolland, «From Rydberg state dynamics to ion-molecule reactions using ZEKE spectroscopy» in: Advances in Chemical Physics: Chemical Reactions and Their Control on the Femtosecond Time Scale (XXth Solvay Conference on Chemistry), Vol. 101, 667-699, P. Gaspard and I. Burghardt (eds.) John Wiley & Sons, Inc. (1997) doi: external page 10.1002/9780470141601.ch25 |
1996 | |
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[24] | F. Merkt, R. J. Rednall, S. R. Mackenzie, and T. P. Softley, «Electric field ionization of high Rydberg states of Ar with sequences of identical pulses» Phys. Rev. Lett. 76(19), 3526-3529 (1996) doi: external page 10.1103/PhysRevLett.76.3526 |
[23] | F. Merkt, H. Xu, and R. N. Zare, «Preparation and characterization of long-lived molecular Rydberg states: Application to HD» J. Chem. Phys. 104(3), 950-961 (1996) doi: external page 10.1063/1.470818 |
1994 | |
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[16] | F. Merkt and R. N. Zare, «On the lifetimes of Rydberg states probed by delayed pulsed field ionization» J. Chem. Phys. 101(5), 3495-3505 (1994) doi: external page 10.1063/1.467534 |
[15] | F. Merkt, «Collisional and electric field effects in the delayed pulsed field ionization zero-kinetic-energy photoelectron spectrum of argon» J. Chem. Phys. 100(4), 2623-2628 (1994) doi: external page 10.1063/1.466457 |
1993 | |
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[14] | F. Merkt, S. R. Mackenzie, R. J. Rednall, and T. P. Softley, «Zero-kinetic-energy photoelectron spectrum of carbon dioxide» J. Chem. Phys. 99(11), 8430-8439 (1993) doi: external page 10.1063/1.466212 |
[13] | F. Merkt and T. P. Softley, «Rotational line intensities in zero kinetic energy photoelectron spectroscopy (ZEKE-PES)» Int. Rev. Phys. Chem. 12(2), 205-239 (1993) doi: external page 10.1080/01442359309353282 |
[12] | F. Merkt, S. R. Mackenzie, and T. P. Softley, «Preparation of ions in selected rotational states by delayed pulsed field ionization» J. Chem. Phys. 99(5), 4213-4214 (1993) doi: external page 10.1063/1.466119 |
[11] | F. Merkt and P. M. Guyon, «The zero-kinetic-energy photoelectron spectrum of nitrogen between 15.5 and 26.5 eV» J. Chem. Phys. 99(5), 3400-3410 (1993) doi: external page 10.1063/1.465150 |
[10] | F. Merkt, P. M. Guyon, and J. Hepburn, «High-resolution threshold photoelectron spectrum of molecular oxygen» Chem. Phys. 173(3), 479-489 (1993) doi: external page 10.1016/0301-0104(93)80162-3 |
[9] | S. H. S. Wilson, R. J. Rednall, H. H. Fielding, F. Merkt, and T. P. Softley, «Intensity perturbations in the v+=2, 1 and 0 bands of the zero-kinetic-energy (ZEKE) photoelectron spectrum of N2» J. Electron Spectrosc. Relat. Phenom. 66(1–2), 151–166 (1993) doi: external page 10.1016/0368-2048(93)01834-2 |
[8] | F. Merkt, H. H. Fielding, and T. P. Softley, «Electric field effects on zero-kinetic-energy photoelectron spectra: An explanation of observed trends» Chem. Phys. Lett. 202(1–2), 153–160 (1993) doi: external page 10.1016/0009-2614(93)85365-U |
1988 | |
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[1] | A. Amrein, D. Luckhaus, F. Merkt, and M. Quack «High-resolution FTIR spectroscopy of CHClF2 in a supersonic free jet expansion» Chem. Phys. Lett. 152(4–5), 275–280, (1988) doi: external page 10.1016/0009-2614(88)80092-7 |