Zobrazeno 1 - 10
of 109
pro vyhledávání: '"Aksay, I. A."'
Autor:
Sidis, Y., Bourges, P., Fong, H. F., Keimer, B., Regnault, L. P., Bossy, J., Ivanov, A., Hennion, B., Gautier-Picard, P., Collin, G., Millius, D. L., Aksay, I. A.
Publikováno v:
Phys. Rev. Lett. 84, 5900 (2000).
The influence of magnetic (S=1) and nonmagnetic (S=0) impurities on the spin dynamics of an optimally doped high temperature superconductor is compared in two samples with almost identical superconducting transition temperatures: YBa$_2$(Cu$_{0.97}$N
Externí odkaz:
http://arxiv.org/abs/cond-mat/9912214
Autor:
Fong, H. F., Bourges, P., Sidis, Y., Regnault, L. P., Bossy, J., Ivanov, A., Milius, D. L., Aksay, I. A., Keimer, B.
Publikováno v:
Phys. Rev. B 61, 14773 (2000)
We report a comprehensive polarized and unpolarized neutron scattering study of the evolution of the dynamical spin susceptibility with temperature and doping in three underdoped single crystals of the \YBCO{6+x} high temperature superconductor: \YBC
Externí odkaz:
http://arxiv.org/abs/cond-mat/9910041
Autor:
Bourges, Ph., Sidis, Y., Fong, H. F., Keimer, B., Regnault, L. P., Bossy, J., Ivanov, A. S., Milius, D. L., Aksay, I. A.
Publikováno v:
High Temperature Superconductivity Edited by S.E. Barnes {\it et al} 207-212 (CP483 American Institute of Physics, Amsterdam, 1999) .
Key features of antiferromagnetic dynamical correlations in high-$T_C$ superconductors cuprates are discussed. In underdoped regime, the sharp resonance peak, occuring exclusively in the SC state, is accompanied by a broader contribution located arou
Externí odkaz:
http://arxiv.org/abs/cond-mat/9902067
Autor:
Fong, H. F., Bourges, P., Sidis, Y., Regnault, L. P., Bossy, J., Ivanov, A., Milius, D. L., Aksay, I. A., Keimer, B.
Publikováno v:
Phys. Rev. Lett. 82, 1939 (1999)
The magnetic excitation spectrum of a YBa_2 Cu_3 O_7 crystal containing 0.5% of nonmagnetic (Zn) impurities has been determined by inelastic neutron scattering. Whereas in the pure system a sharp resonance peak at E ~ 40 meV is observed exclusively b
Externí odkaz:
http://arxiv.org/abs/cond-mat/9812047
We report inelastic neutron scattering experiments on the doping dependence of the energy and spectral weight of the sharp magnetic resonance peak in YBa_2 Cu_3 O_{6+x}. These measurements also shed light on the relationship between the magnetic exci
Externí odkaz:
http://arxiv.org/abs/cond-mat/9705103
Autor:
Bourges, Ph., Fong, H. F., Regnault, L. P., Bossy, J., Vettier, C., Milius, D. L., Aksay, I. A., Keimer, B.
Publikováno v:
Phys. Rev. B, 56, R11439 (1997)
Inelastic neutron scattering has been used to obtain a comprehensive description of the absolute dynamical spin susceptibility $\chi'' (q,\omega)$ of the underdoped superconducting cuprate YBa_2 Cu_3 O_{6.5} ($T_c = 52 K$) over a wide range of energi
Externí odkaz:
http://arxiv.org/abs/cond-mat/9704073
Polarized and unpolarized neutron scattering has been used to determine the effect of superconductivity on the magnetic excitation spectra of YBa_2 Cu_3 O_{6.5} (T_c = 52K) and YBa_2 Cu_3 O_{6.7} (T_c = 67K). Pronounced enhancements of the spectral w
Externí odkaz:
http://arxiv.org/abs/cond-mat/9612110
Publikováno v:
Science, 1997 Jul . 277(5325), 552-556.
Externí odkaz:
https://www.jstor.org/stable/2892553
Autor:
Aksay, I. A., Trau, M., Manne, S., Honma, I., Yao, N., Zhou, L., Fenter, P., Eisenberger, P. M., Gruner, S. M.
Publikováno v:
Science, 1996 Aug . 273(5277), 892-898.
Externí odkaz:
https://www.jstor.org/stable/2891509
Publikováno v:
Science, 1996 May 01. 272(5262), 706-709.
Externí odkaz:
https://www.jstor.org/stable/2889441