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Pregled bibliografske jedinice broj: 567438

Two Ising-like magnetic excitations in a single-layer cuprate superconductor


Li, Yuan; Yu, G.; Chan, M.K.; Baledent, V.; Li, Yangmu; Barišić, Neven; Zhao, X.; Hradil, K.; Mole, R.A.; Sidis, Y. et al.
Two Ising-like magnetic excitations in a single-layer cuprate superconductor // Nature Physics, 8 (2012), 404-410 doi:10.1038/nphys2271 (međunarodna recenzija, članak, znanstveni)


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Naslov
Two Ising-like magnetic excitations in a single-layer cuprate superconductor

Autori
Li, Yuan ; Yu, G. ; Chan, M.K. ; Baledent, V. ; Li, Yangmu ; Barišić, Neven ; Zhao, X. ; Hradil, K. ; Mole, R.A. ; Sidis, Y. ; Steffens, P. ; Bourges, P. ; Greven, M.

Izvornik
Nature Physics (1745-2473) 8 (2012); 404-410

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
HgBa2CuO4+delta

Sažetak
There exists increasing evidence that the phase diagram of the high-transition temperature (T-c) cuprate superconductors is controlled by a quantum critical point. According to one distinct theoretical proposal, on decreasing the hole-carrier concentration a transition occurs to an ordered state with two circulating orbital currents per CuO2 square. Below the 'pseudogap' temperature T* (T* > T-c), the theory predicts a discrete order parameter and two weakly-dispersive magnetic excitations in structurally simple compounds which should be measurable by neutron scattering. Indeed, novel magnetic order and one such excitation were recently observed. Here, we demonstrate for tetragonal HgBa2CuO4+delta the existence of a second excitation with local character, consistent with the theory. The excitations mix with conventional antiferromagnetic fluctuations, which points towards a unifying picture of magnetism in the cuprates that will probably require a multi-band description.

Izvorni jezik
Engleski

Znanstvena područja
Fizika



POVEZANOST RADA


Ustanove:
Institut za fiziku, Zagreb

Profili:

Avatar Url Neven Barišić (autor)

Citiraj ovu publikaciju

Li, Yuan; Yu, G.; Chan, M.K.; Baledent, V.; Li, Yangmu; Barišić, Neven; Zhao, X.; Hradil, K.; Mole, R.A.; Sidis, Y. et al.
Two Ising-like magnetic excitations in a single-layer cuprate superconductor // Nature Physics, 8 (2012), 404-410 doi:10.1038/nphys2271 (međunarodna recenzija, članak, znanstveni)
Li, Y., Yu, G., Chan, M., Baledent, V., Li, Y., Barišić, N., Zhao, X., Hradil, K., Mole, R. & Sidis, Y. (2012) Two Ising-like magnetic excitations in a single-layer cuprate superconductor. Nature Physics, 8, 404-410 doi:10.1038/nphys2271.
@article{article, year = {2012}, pages = {404-410}, DOI = {10.1038/nphys2271}, keywords = {HgBa2CuO4+delta}, journal = {Nature Physics}, doi = {10.1038/nphys2271}, volume = {8}, issn = {1745-2473}, title = {Two Ising-like magnetic excitations in a single-layer cuprate superconductor}, keyword = {HgBa2CuO4+delta} }
@article{article, year = {2012}, pages = {404-410}, DOI = {10.1038/nphys2271}, keywords = {HgBa2CuO4+delta}, journal = {Nature Physics}, doi = {10.1038/nphys2271}, volume = {8}, issn = {1745-2473}, title = {Two Ising-like magnetic excitations in a single-layer cuprate superconductor}, keyword = {HgBa2CuO4+delta} }

Časopis indeksira:


  • Current Contents Connect (CCC)
  • Web of Science Core Collection (WoSCC)
    • Science Citation Index Expanded (SCI-EXP)
    • SCI-EXP, SSCI i/ili A&HCI
  • Scopus


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