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Showing 1 to 12 of 175 entries
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Polaronic metal state at the LaAlO3/SrTiO3 interface.

Nature communications

Cancellieri C, Mishchenko AS, Aschauer U, Filippetti A, Faber C, Barišić OS, Rogalev VA, Schmitt T, Nagaosa N, Strocov VN.
PMID: 26813124
Nat Commun. 2016 Jan 27;7:10386. doi: 10.1038/ncomms10386.

Interplay of spin, charge, orbital and lattice degrees of freedom in oxide heterostructures results in a plethora of fascinating properties, which can be exploited in new generations of electronic devices with enhanced functionalities. The paradigm example is the interface...

[OsF.

Chemistry (Weinheim an der Bergstrasse, Germany)

Pedersen KS, Woodruff DN, Singh SK, Tressaud A, Durand E, Atanasov M, Perlepe P, Ollefs K, Wilhelm F, Mathonière C, Neese F, Rogalev A, Bendix J, Clérac R.
PMID: 28653317
Chemistry. 2017 Aug 22;23(47):11244-11248. doi: 10.1002/chem.201702894. Epub 2017 Jul 27.

Heavy 5d elements, like osmium, feature strong spin-orbit interactions which are at the origin of exotic physical behaviors. Revealing the full potential of, for example, novel osmium oxide materials ("osmates") is however contingent upon a detailed understanding of the...

Natural linear dichroism in pyrite (FeS2): experiments and calculations.

Journal of synchrotron radiation

Cabaret D, Brouder C, Arrio MA, Sainctavit P, Joly Y, Rogalev A, Goulon J.
PMID: 11512814
J Synchrotron Radiat. 2001 Mar 01;8:460-2. doi: 10.1107/s0909049500016861.

Electric quadrupole transitions are revealed through the angular dependence of X-ray absorption spectra in a cubic crytal. Data collection was achieved at the iron K-edge in pyrite (FeS2) by using the angular moment method developed for X-ray Natural Circular...

Layer-resolved magnetic moments in Ni/Pt multilayers.

Physical review letters

Wilhelm F, Poulopoulos P, Ceballos G, Wende H, Baberschke K, Srivastava P, Benea D, Ebert H, Angelakeris M, Flevaris NK, Niarchos D, Rogalev A, Brookes NB.
PMID: 10991296
Phys Rev Lett. 2000 Jul 10;85(2):413-6. doi: 10.1103/PhysRevLett.85.413.

The magnetic moments in Ni/Pt multilayers are thoroughly studied by combining experimental and ab initio theoretical techniques. SQUID magnetometry probes the samples' magnetizations. X-ray magnetic circular dichroism separates the contribution of Ni and Pt and provides a layer-resolved magnetic...

First observation of nonreciprocal X-Ray gyrotropy.

Physical review letters

Goulon J, Rogalev A, Goulon-Ginet C, Benayoun G, Paolasini L, Brouder C, Malgrange C, Metcalf PA.
PMID: 11060644
Phys Rev Lett. 2000 Nov 13;85(20):4385-8. doi: 10.1103/PhysRevLett.85.4385.

We report the first observation of a nonreciprocal x-ray linear dichroism caused by the time-reversal odd, real part zeta of the complex gyrotropy tensor zeta(*) which is dominated by electric dipole-electric quadrupole E1E2 interference terms. A nonreciprocal transverse anisotropy...

XMCD at the Co K-edge in RCo2 intermetallics: influence of the rare earths.

Journal of synchrotron radiation

Galéra RM, Rueff JP, Rogalev A, Giorgetti C, Dartyge E.
PMID: 15263420
J Synchrotron Radiat. 1999 May 01;6:676-8. doi: 10.1107/S0909049598016598. Epub 1999 May 01.

No abstract available.

X-ray magnetic reflectometry using circularly polarized radiation.

Journal of synchrotron radiation

Neumann C, Rogalev A, Goulon J, Lingham M, Ziegler E.
PMID: 15263724
J Synchrotron Radiat. 1998 May 01;5:998-1000. doi: 10.1107/S0909049597016099. Epub 1998 May 01.

Magnetic reflectometry experiments have been performed in the X-ray range at the L(2,3) edges of rhodium. What makes these experiments original is the insertion of a very compact double-bounce reflectometer upstream of the monochromator. This configuration makes full use...

Theory of X-ray natural circular dichroism.

Journal of synchrotron radiation

Brouder C, Natoli CR, Sainctavit P, Goulon J, Goulon-Ginet C, Rogalev A.
PMID: 15263271
J Synchrotron Radiat. 1999 May 01;6:261-3. doi: 10.1107/S090904959801680X. Epub 1999 May 01.

No abstract available.

XAFS and X-MCD spectroscopies with undulator gap scan.

Journal of synchrotron radiation

Rogalev A, Gotte V, Goulon J, Gauthier C, Chavanne J, Elleaume P.
PMID: 15263721
J Synchrotron Radiat. 1998 May 01;5:989-91. doi: 10.1107/S0909049597014702. Epub 1998 May 01.

The first experimental applications of the undulator gap-scan technique in X-ray absorption spectroscopy are reported. The key advantage of this method is that during EXAFS scans the undulator is permanently tuned to the maximum of its emission peak in...

Organometallic control at the nanoscale: a new, one-pot method to decorate a magnetic nanoparticle surface with noble metal atoms.

Chemical communications (Cambridge, England)

Atamena N, Ciuculescu D, Alcaraz G, Smekhova A, Wilhelm F, Rogalev A, Chaudret B, Lecante P, Benfield RE, Amiens C.
PMID: 20309468
Chem Commun (Camb). 2010 Apr 14;46(14):2453-5. doi: 10.1039/b925054a. Epub 2010 Feb 01.

A novel cascade of reactions is designed to control in situ the deposition of noble metal islands (e.g. Rh) on top of nanoparticles of a 3d metal (e.g. Fe, Co).

X-ray absorption spectroscopy as a probe of photo- and thermally induced valence tautomeric transition in a 1:1 cobalt-dioxolene complex.

Chemphyschem : a European journal of chemical physics and physical chemistry

Poneti G, Mannini M, Sorace L, Sainctavit P, Arrio MA, Rogalev A, Wilhelm F, Dei A.
PMID: 19504527
Chemphyschem. 2009 Aug 24;10(12):2090-5. doi: 10.1002/cphc.200900098.

The role of the cobalt ion in the entropy- and optically-driven valence tautomeric (VT) interconversion exhibited by the [Co(Me(2)tpa)(DTBdiox)](PF(6))C(6)H(5)CH(3) complex (Me(2)tpa = bis (6-methyl-(2-pyridylmethyl))(2-pyridylmethyl)amine, DBdiox = 3,5-ditertbutyl-dioxolene) is established by means of X-ray absorption spectroscopy (XAS). Analysis of the...

High performance mode locking characteristics of single section quantum dash lasers.

Optics express

Rosales R, Murdoch SG, Watts RT, Merghem K, Martinez A, Lelarge F, Accard A, Barry LP, Ramdane A.
PMID: 22513574
Opt Express. 2012 Apr 09;20(8):8649-57. doi: 10.1364/OE.20.008649.

Mode locking features of single section quantum dash based lasers are investigated. Particular interest is given to the static spectral phase profile determining the shape of the mode locked pulses. The phase profile dependence on cavity length and injection...

Showing 1 to 12 of 175 entries