Zobrazeno 1 - 10
of 323
pro vyhledávání: '"Hayden, S. M."'
Impact of electron correlations on two-particle charge response in electron- and hole-doped cuprates
Autor:
Nag, Abhishek, Zinni, Luciano, Choi, Jaewon, Li, J., Tu, Sijia, Walters, A. C., Agrestini, S., Hayden, S. M., Bejas, Matías, Lin, Zefeng, Yamase, H., Jin, Kui, García-Fernández, M., Fink, J., Greco, Andrés, Zhou, Ke-Jin
Estimating many-body effects that deviate from an independent particle approach, has long been a key research interest in condensed matter physics. Layered cuprates are prototypical systems, where electron-electron interactions are found to strongly
Externí odkaz:
http://arxiv.org/abs/2407.15692
Autor:
Shen, L., Esposito, V., Burdet, N. G., Zhu, M., Petsch, A. N., Croft, T. P., Collins, S. P., Ren, Z., Westermeier, F., Sprung, M., Hayden, S. M., Turner, J. J., Blackburn, E.
In the cuprate superconductors, the spatial coherence of the charge density wave (CDW) state grows rapidly below a characteristic temperature $T_\mathrm{CDW}$, the nature of which is debated. We have combined a set of x-ray scattering techniques to s
Externí odkaz:
http://arxiv.org/abs/2304.12485
Autor:
Petsch, A. N., Headings, N. S., Prabhakaran, D., Kolesnikov, A. I., Frost, C. D., Boothroyd, A. T., Coldea, R., Hayden, S. M.
Publikováno v:
Phys. Rev. Research 5, 033113 (2023)
Inelastic neutron scattering is used to study the magnetic excitations of the $S=1$ square-lattice antiferromagnet La$_2$NiO$_4$. We find that the spin waves cannot be described by a simple classical (harmonic) Heisenberg model with only nearest-neig
Externí odkaz:
http://arxiv.org/abs/2304.02546
Autor:
Waite, R., Orlandi, F., Sokolov, D. A., Ribeiro, R. A., Canfield, P. C., Manuel, P., Khalyavin, D. D., Hicks, C. W., Hayden, S. M.
Publikováno v:
Phys. Rev. B 106, 224415 (2022)
The tetragonal heavy-fermion compound CeAuSb$_2$ (space group $P4/nmm$) exhibits incommensurate spin density wave (SDW) order below $T_{N}\approx6.5~K$ with the propagation vector $\mathbf{q}_A = (\delta_A,\delta_A,1/2)$. The application of uniaxial
Externí odkaz:
http://arxiv.org/abs/2202.11569
Publikováno v:
Nature Physics 19, 99 (2023)
Theories of the origin of superconductivity in cuprates are dependent on an understanding of their normal state which exhibits various competing orders. Transport and thermodynamic measurements on La$_{2-x}$Sr$_x$CuO$_4$ show signatures of a quantum
Externí odkaz:
http://arxiv.org/abs/2201.11719
Autor:
Tam, C. C., Zhu, M., Ayres, J., Kummer, K., Yakhou-Harris, F., Cooper, J. R., Carrington, A., Hayden, S. M.
Publikováno v:
Nature Communications 13, 570 (2022)
Hall effect and quantum oscillation measurements on high temperature cuprate superconductors show that underdoped compositions have a small Fermi surface pocket whereas when heavily overdoped, the pocket increases dramatically in size. The origin of
Externí odkaz:
http://arxiv.org/abs/2109.04279
Autor:
Lester, C., Ramos, S., Perry, R. S., Croft, T. P., Laver, M., Bewley, R. I., Guidi, T., Hiess, A., Wildes, A., Forgan, E. M., Hayden, S. M.
Publikováno v:
Nature Communications 12, 5798 (2021)
When the transition temperature of a continuous phase transition is tuned to absolute zero, new ordered phases and physical behaviour emerge in the vicinity of the resulting quantum critical point. Sr3Ru2O7 can be tuned through quantum criticality wi
Externí odkaz:
http://arxiv.org/abs/2106.15854
Autor:
Robarts, H. C., Garcia-Fernandez, M., Li, J., Nag, A., Walters, A. C., Headings, N. E., Hayden, S. M., Zhou, Ke-Jin
Publikováno v:
Phys. Rev. B 103, 224427 (2021)
Resonant inelastic X-ray scattering (RIXS) is a powerful probe of elementary excitations in solids. It is now widely applied to study magnetic excitations. However, its complex cross-section means that RIXS has been more difficult to interpret than i
Externí odkaz:
http://arxiv.org/abs/2009.12925
Autor:
Nag, Abhishek, Zhu, M., Bejas, Matias, Li, J., Robarts, H. C., Yamase, Hiroyuki, Petsch, A. N., Song, D., Eisaki, H., Walters, A. C., Garcia-Fernandez, M., Greco, Andres, Hayden, S. M., Zhou, Ke-Jin
Publikováno v:
Phys. Rev. Lett. 125, 257002 (2020)
High Tc superconductors show a rich variety of phases associated with their charge degrees of freedom. Valence charges can give rise to charge ordering or acoustic plasmons in these layered cuprate superconductors. While charge ordering has been obse
Externí odkaz:
http://arxiv.org/abs/2007.07313
Autor:
Petsch, A. N., Zhu, M., Enderle, Mechthild, Mao, Z. Q., Maeno, Y., Mazin, I. I., Hayden, S. M.
Publikováno v:
Phys. Rev. Lett. 125, 217004 (2020)
Recent observations [A.~Pustogow et al. Nature 574, 72 (2019)] of a drop of the $^{17}$O nuclear magnetic resonance (NMR) Knight shift in the superconducting state of Sr$_2$RuO$_4$ challenged the popular picture of a chiral odd-parity paired state in
Externí odkaz:
http://arxiv.org/abs/2002.02856