Zobrazeno 1 - 10
of 207
pro vyhledávání: '"Lampakis, D"'
Autor:
Calamiotou, M., Lampakis, D., Zhigadlo, N. D., Katrych, S., Karpinskic, J., Fitch, A., Tsiaklagkanos, P., Liarokapis, E.
The lattice properties at low temperatures of two samples of NdFeAsO1-xFx (x=0.05 and 0.25) have been examined in order to investigate possible structural phase transition that may occur in the optimally doped superconducting sample with respect to t
Externí odkaz:
http://arxiv.org/abs/1509.03519
Publikováno v:
In Physica C: Superconductivity and its applications 15 October 2019 565
Publikováno v:
PRB 80, 214517 (2009)
Combined synchrotron angle-dispersive powder diffraction and micro-Raman spectroscopy are used to investigate the pressure-induced lattice instabilities that are accompanied by T$_{\rm c}$ anomalies in YBa$_{\rm 2}$Cu$_{\rm 4}$O$_{\rm 8}$, in compari
Externí odkaz:
http://arxiv.org/abs/0907.3024
Micro-Raman evidence for topological charge order across the superconducting dome of La_{2-x)SrxCuO4
Publikováno v:
PHYSICAL REVIEW B 73, 174518 (2006)
The doping dependence of the micro-Raman spectra of high quality La_{2-x}Sr_xCuO_4 microcrystals with x=0.0-0.45 has been investigated in the region 10-300 K. The phonon at ~100 cm^{-1} of the orthorhombic phase shows a classical soft mode behavior u
Externí odkaz:
http://arxiv.org/abs/0902.2678
Publikováno v:
J. Phys.: Condens. Matter 20 (2008) 434233
Systematic Raman studies on several cuprates (YBa$_{\rm 2}$Cu$_{\rm 3}$O$_{\rm x}$, YBa$_{\rm 2}$Cu$_{\rm 4}$O$_{\rm 8}$ or Bi$_{\rm 2}$Sr$_{\rm 2}$CaCu$_{\rm 2}$O$_{\rm 8}$) have shown that at optimal doping the compounds are at the edge of lattice
Externí odkaz:
http://arxiv.org/abs/0902.2664
Autor:
Simonelli, L., Palmisano, V., Fratini, M., Filippi, M., Parisiades, P., Lampakis, D., Liarokapis, E., Bianconi, A
Publikováno v:
Phys. Rev. B 80, 014520 (2009)
We report the boron isotope effect on the E2g phonon mode by micro-Raman spectroscopy on the ternary Mg1-xAlxB2 system, synthesized with pure isotopes 10B and 11B. The isotope coefficient on the phonon frequency is near 0.5 in the full range decreasi
Externí odkaz:
http://arxiv.org/abs/0812.0086
Autor:
Khasanov, R., Shengelaya, A., Morenzoni, E., Angst, M., Conder, K., Savić, I. M., Lampakis, D., Liarokapis, E., Tatsi, A., Keller, H.
Publikováno v:
Phys. Rev. B, v. 68, 220506 (2003).
We report site-selective oxygen isotope ($^{16}$O/$^{18}$O) effect (OIE) measurements on the in-plane penetration depth $\lambda_{ab} $ in underdoped Y$_{0.6}$Pr$_{0.4}$Ba$_2$Cu$_3$O$_{7-\delta}$, using the muon-spin rotation ($\mu$SR) technique. A p
Externí odkaz:
http://arxiv.org/abs/cond-mat/0308440
Autor:
Lampakis, D., Tatsi, A., Liarokapis, E., Varelogiannis, G., Oppeneer, P. M., Pissas, M., Nishizaki, T.
We report micro-Raman measurements that reveal a low-energy soft mode at 16-19 meV in MgB_2 which becomes sharper in the superconducting state. With a boson spectrum based on this mode we reproduce, within Eliashberg theory, the T_c, the T-shape of t
Externí odkaz:
http://arxiv.org/abs/cond-mat/0105447
Autor:
Calamiotou, M., Lampakis, D., Zhigadlo, N.D., Katrych, S., Karpinski, J., Fitch, A., Tsiaklagkanos, P., Liarokapis, E.
Publikováno v:
In Physica C: Superconductivity and its applications 15 August 2016 527:55-62
Monitoring the polymerization process of Si-based superhydrophobic coatings using Raman spectroscopy
Publikováno v:
In Progress in Organic Coatings February-March 2013 76(2-3):488-494