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Showing 1 to 12 of 19 entries
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Evidence for anisotropic kondo behavior in Ce0.8La0.2Al3.

Physical review letters

Goremychkin EA, Osborn R, Rainford BD, Murani AP.
PMID: 11017246
Phys Rev Lett. 2000 Mar 06;84(10):2211-4. doi: 10.1103/PhysRevLett.84.2211.

We have performed an inelastic neutron scattering study of the low energy spin dynamics of the heavy fermion compound Ce0.8La0.2Al3 as a function of temperature and external pressure up to 5 kbar. At temperatures below 3 K, the magnetic...

Magnetic correlations and the anisotropic Kondo effect in Ce1-xLaxAl3.

Physical review letters

Goremychkin EA, Osborn R, Rainford BD, Costi TA, Murani AP, Scott CA, King PJ.
PMID: 12366072
Phys Rev Lett. 2002 Sep 30;89(14):147201. doi: 10.1103/PhysRevLett.89.147201. Epub 2002 Sep 12.

By combining the results of muon spin relaxation and inelastic neutron scattering in the heavy fermion compounds Ce1-xLaxAl3 (0.0

Unconventional superconductivity in Ba(0.6)K(0.4)Fe2As2 from inelastic neutron scattering.

Nature

Christianson AD, Goremychkin EA, Osborn R, Rosenkranz S, Lumsden MD, Malliakas CD, Todorov IS, Claus H, Chung DY, Kanatzidis MG, Bewley RI, Guidi T.
PMID: 19092931
Nature. 2008 Dec 18;456(7224):930-2. doi: 10.1038/nature07625.

A new family of superconductors containing layers of iron arsenide has attracted considerable interest because of their high transition temperatures (T(c)), some of which are >50 K, and because of similarities with the high-T(c) copper oxide superconductors. In both...

Phonon density of states of LaFeAsO(1-x)Fx.

Physical review letters

Christianson AD, Lumsden MD, Delaire O, Stone MB, Abernathy DL, McGuire MA, Sefat AS, Jin R, Sales BC, Mandrus D, Mun ED, Canfield PC, Lin JY, Lucas M, Kresch M, Keith JB, Fultz B, Goremychkin EA, McQueeney RJ.
PMID: 18999629
Phys Rev Lett. 2008 Oct 10;101(15):157004. doi: 10.1103/PhysRevLett.101.157004. Epub 2008 Oct 08.

We have studied the phonon density of states (PDOS) in LaFeAsO(1-x)Fx with inelastic neutron scattering methods. The PDOS of the parent compound (x=0) is very similar to the PDOS of samples optimally doped with fluorine to achieve the maximum...

Vibron quasibound state in the noncentrosymmetric tetragonal heavy-fermion compound CeCuAl3.

Physical review letters

Adroja DT, del Moral A, de la Fuente C, Fraile A, Goremychkin EA, Taylor JW, Hillier AD, Fernandez-Alonso F.
PMID: 23003286
Phys Rev Lett. 2012 May 25;108(21):216402. doi: 10.1103/PhysRevLett.108.216402. Epub 2012 May 23.

We have investigated the noncentrosymmetric tetragonal heavy-fermion antiferromagnetic compound CeCuAl3 (T(N)=2.5 K) using inelastic neutron scattering (INS). Our INS results unequivocally reveal the presence of three magnetic excitations centered at 1.3, 9.8, and 20.5 meV. These spectral features cannot...

Effect of Fermi surface nesting on resonant spin excitations in Ba(1-x)K(x)Fe2As2.

Physical review letters

Castellan JP, Rosenkranz S, Goremychkin EA, Chung DY, Todorov IS, Kanatzidis MG, Eremin I, Knolle J, Chubukov AV, Maiti S, Norman MR, Weber F, Claus H, Guidi T, Bewley RI, Osborn R.
PMID: 22107566
Phys Rev Lett. 2011 Oct 21;107(17):177003. doi: 10.1103/PhysRevLett.107.177003. Epub 2011 Oct 18.

We report inelastic neutron scattering measurements of the resonant spin excitations in Ba(1-x)K(x)Fe(2)As(2) over a broad range of electron band filling. The fall in the superconducting transition temperature with hole doping coincides with the magnetic excitations splitting into two...

Crystal-field excitations in CeCu2Si2.

Physical review. B, Condensed matter

Goremychkin EA, Osborn R.
PMID: 10005773
Phys Rev B Condens Matter. 1993 Jun 01;47(21):14280-14290. doi: 10.1103/physrevb.47.14280.

No abstract available.

Transition from heavy-fermion to mixed-valence behavior in Ce(1-x)Y(x)Al3: a quantitative comparison with the anderson impurity model.

Physical review letters

Goremychkin EA, Osborn R, Sashin IL, Riseborough P, Rainford BD, Adroja DT, Lawrence JM.
PMID: 20482120
Phys Rev Lett. 2010 Apr 30;104(17):176402. doi: 10.1103/PhysRevLett.104.176402. Epub 2010 Apr 27.

We present a neutron scattering investigation of Ce1-xYxAl3 as a function of chemical pressure, which induces a transition from heavy-fermion behavior in CeAl3 (T{K}=5 K) to a mixed-valence state at x=0.5 (T{K}=150 K). The crossover can be modeled accurately...

Neutron-spectroscopy study of the heavy-fermion compound CeCu6.

Physical review. B, Condensed matter

Goremychkin EA, Osborn R.
PMID: 10005820
Phys Rev B Condens Matter. 1993 Jun 01;47(21):14580-14583. doi: 10.1103/physrevb.47.14580.

No abstract available.

Spectroscopic Identification of Hydrogen Bond Vibrations and Quasi-Isostructural Polymorphism in N-Salicylideneaniline.

Molecules (Basel, Switzerland)

Hetmańczyk Ł, Goremychkin EA, Waliszewski J, Vener MV, Lipkowski P, Tolstoy PM, Filarowski A.
PMID: 34443632
Molecules. 2021 Aug 20;26(16). doi: 10.3390/molecules26165043.

The

Spin wave measurements over the full Brillouin zone of multiferroic BiFeO3.

Physical review letters

Jeong J, Goremychkin EA, Guidi T, Nakajima K, Jeon GS, Kim SA, Furukawa S, Kim YB, Lee S, Kiryukhin V, Cheong SW, Park JG.
PMID: 22401246
Phys Rev Lett. 2012 Feb 17;108(7):077202. doi: 10.1103/PhysRevLett.108.077202. Epub 2012 Feb 14.

Using the inelastic neutron scattering technique, we measured the spin wave dispersion over the entire Brillouin zone of room temperature multiferroic BiFeO(3) single crystals with magnetic excitations extending to as high as 72.5 meV. The full spin waves can...

Crystal field potential of PrOs4Sb12: consequences for superconductivity.

Physical review letters

Goremychkin EA, Osborn R, Bauer ED, Maple MB, Frederick NA, Yuhasz WM, Woodward FM, Lynn JW.
PMID: 15524926
Phys Rev Lett. 2004 Oct 08;93(15):157003. doi: 10.1103/PhysRevLett.93.157003. Epub 2004 Oct 04.

The results of inelastic neutron scattering provide a solution for the crystal field level scheme in PrOs4Sb12, in which the ground state in the cubic crystal field potential of T(h) symmetry is a Gamma(1) singlet. The conduction electron mass...

Showing 1 to 12 of 19 entries