Full metadata record
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Chelwani, N. | - |
dc.contributor.author | Baum, A. | - |
dc.contributor.author | Böhm, T. | - |
dc.contributor.author | Opel, M. | - |
dc.contributor.author | Venturini, Francesca | - |
dc.contributor.author | Tassini, L. | - |
dc.contributor.author | Erb, A. | - |
dc.contributor.author | Berger, H. | - |
dc.contributor.author | Forró, L. | - |
dc.contributor.author | Hackl, R. | - |
dc.date.accessioned | 2018-01-18T10:54:41Z | - |
dc.date.available | 2018-01-18T10:54:41Z | - |
dc.date.issued | 2018-01-09 | - |
dc.identifier.issn | 2469-9950 | de_CH |
dc.identifier.issn | 2469-9969 | de_CH |
dc.identifier.issn | 1098-0121 | de_CH |
dc.identifier.issn | 1550-235X | de_CH |
dc.identifier.issn | 0556-2805 | de_CH |
dc.identifier.issn | 0163-1829 | de_CH |
dc.identifier.uri | https://digitalcollection.zhaw.ch/handle/11475/2120 | - |
dc.identifier.uri | https://arxiv.org/pdf/1705.01496.pdf | de_CH |
dc.description.abstract | We present results from light scattering experiments on three insulating antiferromagnetic cuprates, YBa2Cu3O6.05, Bi2Sr2YCu2O8+δ, and La2CuO4 as a function of polarization and excitation energy using samples of the latest generation. From the raw data we derive symmetry-resolved spectra. The spectral shape in B1g symmetry is found to be nearly universal and independent of excitation energy. The spectra agree quantitatively with predictions by field theory [Eur. Phys. J. B 88, 237 (2015)] facilitating the precise extraction of the Heisenberg coupling J. In addition, the asymmetric lineshape on the high-energy side is found to be related to amplitude fluctuations of the magnetization. In La2CuO4 alone, minor contributions from resonance effects may be identified. The spectra in the other symmetries are not universal. The variations may be traced back to weak resonance effects and extrinsic contributions. For all three compounds we find support for the existence of chiral excitations appearing as a continuum in A2g symmetry having an onset slightly below 3J. In La2CuO4 an additional isolated excitation appears on top of the A2g continuum. | de_CH |
dc.language.iso | en | de_CH |
dc.publisher | American Physical Society | de_CH |
dc.relation.ispartof | Physical Review B | de_CH |
dc.rights | Licence according to publishing contract | de_CH |
dc.subject.ddc | 530: Physik | de_CH |
dc.title | Magnetic excitations and amplitude fluctuations in insulating cuprates | de_CH |
dc.type | Beitrag in wissenschaftlicher Zeitschrift | de_CH |
dcterms.type | Text | de_CH |
zhaw.departement | School of Engineering | de_CH |
zhaw.organisationalunit | Institut für Angewandte Mathematik und Physik (IAMP) | de_CH |
dc.identifier.doi | 10.1103/PhysRevB.97.024407 | de_CH |
zhaw.funding.eu | No | de_CH |
zhaw.issue | 2 | de_CH |
zhaw.originated.zhaw | Yes | de_CH |
zhaw.publication.status | publishedVersion | de_CH |
zhaw.volume | 97 | de_CH |
zhaw.publication.review | Peer review (Publikation) | de_CH |
zhaw.webfeed | Photonics | de_CH |
Appears in collections: | Publikationen School of Engineering |
Files in This Item:
There are no files associated with this item.
Show simple item record
Chelwani, N., Baum, A., Böhm, T., Opel, M., Venturini, F., Tassini, L., Erb, A., Berger, H., Forró, L., & Hackl, R. (2018). Magnetic excitations and amplitude fluctuations in insulating cuprates. Physical Review B, 97(2). https://doi.org/10.1103/PhysRevB.97.024407
Chelwani, N. et al. (2018) ‘Magnetic excitations and amplitude fluctuations in insulating cuprates’, Physical Review B, 97(2). Available at: https://doi.org/10.1103/PhysRevB.97.024407.
N. Chelwani et al., “Magnetic excitations and amplitude fluctuations in insulating cuprates,” Physical Review B, vol. 97, no. 2, Jan. 2018, doi: 10.1103/PhysRevB.97.024407.
CHELWANI, N., A. BAUM, T. BÖHM, M. OPEL, Francesca VENTURINI, L. TASSINI, A. ERB, H. BERGER, L. FORRÓ und R. HACKL, 2018. Magnetic excitations and amplitude fluctuations in insulating cuprates. Physical Review B [online]. 9 Januar 2018. Bd. 97, Nr. 2. DOI 10.1103/PhysRevB.97.024407. Verfügbar unter: https://arxiv.org/pdf/1705.01496.pdf
Chelwani, N., A. Baum, T. Böhm, M. Opel, Francesca Venturini, L. Tassini, A. Erb, H. Berger, L. Forró, and R. Hackl. 2018. “Magnetic Excitations and Amplitude Fluctuations in Insulating Cuprates.” Physical Review B 97 (2). https://doi.org/10.1103/PhysRevB.97.024407.
Chelwani, N., et al. “Magnetic Excitations and Amplitude Fluctuations in Insulating Cuprates.” Physical Review B, vol. 97, no. 2, Jan. 2018, https://doi.org/10.1103/PhysRevB.97.024407.
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.