Arbeitsgruppe Neutronenstreuung

Ausgewählte Veröffentlichungen

[1]	Electron-Phonon Coupling in the Conventional Superconductor YNi₂B₂C at High Phonon Energies Studied by Time-of-Flight Neutron Spectroscopy F. Weber, S. Rosenkranz, L. Pintschovius, J. .-P. Castellan, R. Osborn, W. Reichardt, R. Heid, K.-P. Bohnen, E. A. Goremychkin, A. Kreyssig, K. Hradil, D. L. Abernathy Phys. Rev. Lett. 109 (2012) 57001
[2]	Phonons and electron-phonon coupling in YNi₂B₂C F. Weber, L. Pintschovius, W. Reichardt, R. Heid, K.-P. Bohnen, A. Kreyssig, D. Reznik, K. Hradil Phys. Rev. B 89 (2014) 104503
[3]	Direct Observation of the Superconducting Gap in Phonon Spectra F. Weber, A. Kreyssig, L. Pintschovius, R. Heid, W. Reichardt, D. Reznik, O. Stockert, K. Hradil Phys. Rev. Lett. 101 (2008) 237002
[4]	Superconductivity-Induced Distortions of Phonon Lineshapes in Niobium F. Weber, L. Pintschovius Phys. Rev. B 82 (2010) 24509
[5]	Electron-phonon coupling and superconductivity-induced distortion of the phonon lineshape in V₃Si A. Sauer, D. A. Zocco, A. H. Said, R. Heid, A. Böhmer, F. Weber Phys. Rev. B 99 (2019) 134511
[6]	Superconductivity and hybrid soft modes in TiSe₂ M. Maschek, S. Rosenkranz, R. Hott, R. Heid, Michael Merz, D. A. Zocco, A. H. Said, A. Alatas, G. Karapetrov, Shan Zhu, Jasper van Wezel, and F. Weber Phys. Rev. B 94 (2016) 214507
[7]	Close correlation between magnetic properties and the soft phonon mode of the structural transition in BaFe₂As₂ and SrFe₂As₂ D. Parshall, L. Pintschovius, J. L. Niedziela, J.-P. Castellan, D. Lamago, R. Mittal, Th. Wolf, D. Reznik Phys. Rev. B 91 (2015) 134426
[8]	Phonons in Doped and Undoped BaFe₂As₂ Investigated by Inelastic X-ray Scattering D. Reznik, K. Lokshin, D. C. Mitchell, D. Parshall, W. Dmowski, D. Lamago, R. Heid, K.-P. Bohnen, A. S. Sefat, M. A. McGuire, B. C. Sales, D. G. Mandrus, A. Subedi, D. J. Singh, A. Alatas, M. H. Upton, A. H. Said, A. Cunsolo, Yu. Shvyd'ko, T. Egami Phys. Rev. B 80 (2009) 214534
[9]	Soft phonons reveal the nematic correlation length in Ba(Fe_0.94Co_0.06)₂As₂ F. Weber, D. Parshall, L. Pintschovius, J.-P. Castellan, M. Kauth, M. Merz, Th. Wolf, M. Schütt, J. Schmalian, R. M. Fernandes, D. Reznik Phys. Rev. B 98 (2018) 14516
[10]	Nematic Correlation Length in Iron-Based Superconductors Probed by Inelastic X-Ray Scattering A. M. Merritt, F. Weber, J.-P. Castellan, T. Wolf, D. Ishikawa, A. H. Said, A. Alatas, R. M. Fernandes, A. Q. R. Baron, D. Reznik Phys. Rev. Lett. 124 (2020) 157001
[11]	Magnetic moments induce strong phonon renormalization in FeSi S. Krannich, Y. Sidis, D. Lamago, R. Heid, J.-M. Mignot, H. v. Löhneysen, A. Ivanov, P. Steffens, T. Keller, L. Wang, E. Goering, F. Weber Nat. Commun. 6 (2015) 8961
[12]	Magnetization and ac susceptibility study of the cubic chiral magnet Mn_1−xFe_xSi L. J. Bannenberg, F. Weber, A. J. E. Lefering, T. Wolf, C. Pappas Phys. Rev. B 98 (2018) 184430
[13]	Evolution of helimagnetic correlations in Mn_1-xFe_xSi with doping: A small-angle neutron scattering study L. J. Bannenberg, R. M. Dalgliesh, Th. Wolf, F. Weber, C. Pappas Phys. Rev. B 98 (2018) 184431
[14]	Three-dimensional Fermi surface of 2H-NbSe₂ – Implications for the mechanism of charge density waves F. Weber, R. Hott, R. Heid, L. L. Lev, M. Caputo, T. Schmitt, V. N. Strocov Phys. Rev. B 97 (2018) 235122
[15]	Superconducting energy gap of 2H-NbSe₂ in phonon spectroscopy F. Weber, S. Rosenkranz, R. Heid, and A. H. Said Phys. Rev. B 96 (2016) 140504
[16]	Competing soft phonon modes at the charge-density-wave transitions in DyTe₃ M. Maschek, D. A. Zocco, S. Rosenkranz, R. Heid, A. H. Said, A. Alatas, P. Walmsley, I. R. Fisher, F. Weber Phys. Rev. B 98 (2018) 94304
[17]	Suppression of charge density wave order by disorder in Pd-intercalated ErTe₃ J. A. W. Straquadine, F. Weber, S. Rosenkranz, A. H. Said, I. R. Fisher Phys. Rev. B 99 (2019) 235138

Neueste Veröffentlichungen

Precursor region with full phonon softening above the charge-density-wave phase transition in 2H-TaSe2
Shen, X.; Heid, R.; Hott, R.; Haghighirad, A.-A.; Salzmann, B.; dos Reis Cantarino, M.; Monney, C.; Said, A. H.; Frachet, M.; Murphy, B.; Rossnagel, K.; Rosenkranz, S.; Weber, F.
2023. Nature Communications, 14 (1), 7282. doi:10.1038/s41467-023-43094-5

Lattice dynamics and thermal transport of PbTe under high pressure
Cheng, R.; Shen, X.; Klotz, S.; Zeng, Z.; Li, Z.; Ivanov, A.; Xiao, Y.; Zhao, L.-D.; Weber, F.; Chen, Y.
2023. Physical Review B, 108 (10), 104306. doi:10.1103/PhysRevB.108.104306

Lattice Dynamics Signatures of Competing Orders in Unconventional Superconductors
Souliou, S. M.; Weber, F.; Le Tacon, M.
2023. Synchrotron Radiation News, 1–8. doi:10.1080/08940886.2023.2226045

Soft Phonon Mode Triggering Fast Ag Diffusion in Superionic Argyrodite Ag $_{8}$ GeSe $_{6}$
Shen, X.; Koza, M. M.; Tung, Y.-H.; Ouyang, N.; Yang, C.-C.; Wang, C.; Chen, Y.; Willa, K.; Heid, R.; Zhou, X.; Weber, F.
2023. Small, Art.-Nr.: 2305048. doi:10.1002/smll.202305048

A Unifying Perspective of Common Motifs That Occur across Disparate Classes of Materials Harboring Displacive Phase Transitions
Grünebohm, A.; Hütten, A.; Böhmer, A. E.; Frenzel, J.; Eremin, I.; Drautz, R.; Ennen, I.; Caron, L.; Kuschel, T.; Lechermann, F.; Anselmetti, D.; Dahm, T.; Weber, F.; Rossnagel, K.; Schierning, G.
2023. Advanced Energy Materials, Art.-Nr.: 2300754. doi:10.1002/aenm.202300754

An electronic nematic liquid in BaNi $_{2}$ As $_{2}$
Yao, Y.; Willa, R.; Lacmann, T.; Souliou, S.-M.; Frachet, M.; Willa, K.; Merz, M.; Weber, F.; Meingast, C.; Heid, R.; Haghighirad, A.-A.; Schmalian, J.; Le Tacon, M.
2022. Nature Communications, 13 (1), Art.-Nr.: 4535. doi:10.1038/s41467-022-32112-7

Combined inelastic neutron scattering and ab initio lattice dynamics study of FeSi
Khan, N.; Krannich, S.; Boll, D.; Heid, R.; Lamago, D.; Ivanov, A.; Voneshen, D.; Weber, F.
2022. Physical Review B, 105 (13), Artkl.Nr.: 134304. doi:10.1103/PhysRevB.105.134304

Absence of temperature-dependent phonon anomalies in Sr₂IrO₄ and Sr3Ir₂O₇
Sen, K.; Heid, R.; Souliou, S. M.; Boll, D.; Bosak, A.; Sung, N. H.; Bertinshaw, J.; Gretarsson, H.; Kim, B. J.; Weber, F.; Le Tacon, M.
2022. Physical Review B, 105 (4), Article no: 045142. doi:10.1103/PhysRevB.105.045142

Anomalous transverse optical phonons in SnTe and PbTe
Li, Z.; Li, S.; Castellan, J.-P.; Heid, R.; Xiao, Y.; Zhao, L.-D.; Chen, Y.; Weber, F.
2022. Physical Review B, 105 (1), 014308–1. doi:10.1103/PhysRevB.105.014308

Electron-momentum dependence of electron-phonon coupling underlies dramatic phonon renormalization in YNi $_{2}$ B $_{2}$ C
Kurzhals, P.; Kremer, G.; Jaouen, T.; Nicholson, C. W.; Heid, R.; Nagel, P.; Castellan, J.-P.; Ivanov, A.; Muntwiler, M.; Rumo, M.; Salzmann, B.; Strocov, V. N.; Reznik, D.; Monney, C.; Weber, F.
2022. Nature Communications, 13 (1), Art.-Nr.: 228. doi:10.1038/s41467-021-27843-y

Evolution of helimagnetic correlations when approaching the quantum critical point of Mn1-xFexSi
Pappas, C.; Leonov, A. O.; Bannenberg, L. J.; Fouquet, P.; Wolf, T.; Weber, F.
2021. Physical review research, 3 (1), 013019. doi:10.1103/PhysRevResearch.3.013019

Soft elastic constants from phonon spectroscopy in hole-doped Ba $_{1 - x}$ (K,Na) $_{x}$ Fe $_{2}$ As $_{2}$ and Sr $_{1 - x}$ Na $_{x}$ Fe $_{2}$ As $_{2}$
Kauth, M.; Rosenkranz, S.; Said, A. H.; Taddei, K. M.; Wolf, T.; Weber, F.
2020. Physical review / B, 102 (14), Art.Nr. 144526. doi:10.1103/PhysRevB.102.144526

Dominant In-Plane Symmetric Elastoresistance in CsFe₂As₂
Wiecki, P.; Haghighirad, A.-A.; Weber, F.; Merz, M.; Heid, R.; Böhmer, A. E.
2020. Physical review letters, 125 (18), Article no: 187001. doi:10.1103/PhysRevLett.125.187001

Phonon density of states in lanthanide-based nanocrystals
Li, Z. H.; Hudry, D.; Heid, R.; Said, A. H.; Le, M. D.; Popescu, R.; Gerthsen, D.; Merz, M.; Krämer, K. W.; Busko, D.; Howard, I. A.; Richards, B. S.; Weber, F.
2020. Physical review / B, 102 (16), Art.-Nr.: 165409. doi:10.1103/PhysRevB.102.165409

Nematic Correlation Length in Iron-Based Superconductors Probed by Inelastic X-Ray Scattering
Merritt, A. M.; Weber, F.; Castellan, J.-P.; Wolf, T.; Ishikawa, D.; Said, A. H.; Alatas, A.; Fernandes, R. M.; Baron, A. Q. R.; Reznik, D.
2020. Physical review letters, 124 (15), Art.-Nr.: 157001. doi:10.1103/PhysRevLett.124.157001