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Showing 1 to 7 of 7 entries
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Templated Growth of Surface Enhanced Raman Scattering-Active Branched Gold Nanoparticles within Radial Mesoporous Silica Shells.

ACS nano

Sanz-Ortiz MN, Sentosun K, Bals S, Liz-Marzán LM.
PMID: 26370658
ACS Nano. 2015 Oct 27;9(10):10489-97. doi: 10.1021/acsnano.5b04744. Epub 2015 Sep 21.

Noble metal nanoparticles are widely used as probes or substrates for surface enhanced Raman scattering (SERS), due to their characteristic plasmon resonances in the visible and near-IR spectral ranges. Aiming at obtaining a versatile system with high SERS performance,...

Silica-Coated Plasmonic Metal Nanoparticles in Action.

Advanced materials (Deerfield Beach, Fla.)

Hanske C, Sanz-Ortiz MN, Liz-Marzán LM.
PMID: 29736945
Adv Mater. 2018 Jul;30(27):e1707003. doi: 10.1002/adma.201707003. Epub 2018 May 07.

Hybrid colloids consisting of noble metal cores and metal oxide shells have been under intense investigation for over two decades and have driven progress in diverse research lines including sensing, medicine, catalysis, and photovoltaics. Consequently, plasmonic core-shell particles have...

Optical and magnetic characterisation of Co3+ and Ni3+ in LaAlO3: interplay between the spin state and Jahn-Teller effect.

Journal of physics. Condensed matter : an Institute of Physics journal

Sanz-Ortiz MN, Rodríguez F, Rodríguez J, Demazeau G.
PMID: 21946809
J Phys Condens Matter. 2011 Oct 19;23(41):415501. doi: 10.1088/0953-8984/23/41/415501. Epub 2011 Sep 26.

The coordination, the electronic structures and the spin of the ground state of Ni(3+) (3d(7)) and Co(3+) (3d(6)) introduced as impurities in LaAlO(3) are investigated through optical spectroscopy and magnetic measurements. The unusual trivalent valence state in both transition-metal...

Time-resolved spectroscopy in LiCaAlF(6) doped with Cr(3+): dynamical Jahn-Teller effect and thermal shifts associated with the (4)T(2) excited state.

Journal of physics. Condensed matter : an Institute of Physics journal

Sanz-Ortiz MN, Rodríguez F, Valiente R.
PMID: 21389489
J Phys Condens Matter. 2010 Mar 31;22(12):125502. doi: 10.1088/0953-8984/22/12/125502. Epub 2010 Mar 08.

This work investigates the centre distribution of the Cr(3+) impurity, the dynamical Jahn-Teller effect in the first (4)T(2) excited state and the thermal shifts of the absorption and emission peaks in LiCaAlF(6):Cr(3+) by means of time-resolved emission spectroscopy. The...

Hierarchical organization and molecular diffusion in gold nanorod/silica supercrystal nanocomposites.

Nanoscale

Hamon C, Sanz-Ortiz MN, Modin E, Hill EH, Scarabelli L, Chuvilin A, Liz-Marzán LM.
PMID: 26961684
Nanoscale. 2016 Apr 21;8(15):7914-22. doi: 10.1039/c6nr00712k.

Hierarchical organization of gold nanorods was previously obtained on a substrate, allowing precise control over the morphology of the assemblies and macroscale spatial arrangement. Herein, a thorough description of these gold nanorod assemblies and their orientation within supercrystals is...

Photoluminescence properties of Jahn-Teller transition-metal ions.

The Journal of chemical physics

Sanz-Ortiz MN, Rodríguez F.
PMID: 19791899
J Chem Phys. 2009 Sep 28;131(12):124512. doi: 10.1063/1.3223459.

This work investigates the influence of electron-phonon coupling associated with E tensor product of e and T tensor product of e Jahn-Teller (JT) effect in different transition-metal (TM) ions on de-excitation phenomena through nonradiative multiphonon relaxation, i.e., photoluminescence (PL)...

Anomalous high-pressure Jahn-Teller behavior in CuWO4.

Physical review letters

Ruiz-Fuertes J, Segura A, Rodríguez F, Errandonea D, Sanz-Ortiz MN.
PMID: 22680738
Phys Rev Lett. 2012 Apr 20;108(16):166402. doi: 10.1103/PhysRevLett.108.166402. Epub 2012 Apr 18.

High-pressure optical-absorption measurements performed in CuWO(4) up to 20 GPa provide experimental evidence of the persistence of the Jahn-Teller (JT) distortion in the whole pressure range both in the low-pressure triclinic and in the high-pressure monoclinic phase. The electron-lattice...

Showing 1 to 7 of 7 entries