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Related papers: Different Gd3+ sites in CaB6: an ESR study

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We have found that Ce3Pd20As6 crystallizes into a cubic C6Cr23-type structure. Combination of electron probe microanalysis of the chemical composition and Rietveld analysis of the powder X-ray diffraction pattern has revealed an…

Strongly Correlated Electrons · Physics 2014-10-30 K. Orita , K. Uenishi , M. Tsubota , Y. Shimada , T. Onimaru , T. Takabatake , J. Kitagawa

Multi-frequency electron spin resonance (ESR) transmission spectra have been measured as function of temperature and magnetic field on single crystals of the quasi-one-dimensional spin-1 chain compound SrNi2V2O8 in the GHz frequency range.…

Strongly Correlated Electrons · Physics 2013-03-18 Zhe Wang , M. Schmidt , A. K. Bera , A. T. M. N. Islam , B. Lake , A. Loidl , J. Deisenhofer

The angular and temperature dependences of single crystal ESR spectra at X-band frequency of quasi 1D spin 1/2 antiferromagnetic zigzag chain system {\beta}-TeVO4 are reported. Two resonance components in the ESR spectrum have been…

Strongly Correlated Electrons · Physics 2013-11-25 Yu. Savina , A. Bludov , V. Pashchenko , S. Gnatchenko , A. Stepanov , P. Lemmens

The iron arsenide Sr2CrO3FeAs with the tetragonal Sr2GaO3CuS-type structure was synthesized and its crystal structure re-determined by neutron powder diffraction. In contrast to previous X-ray crystallographic studies, a mixed occupancy of…

Superconductivity · Physics 2010-02-24 Marcus Tegel , Franziska Hummel , Yixi Su , Tapan Chatterji , Michela Brunelli , Dirk Johrendt

The results of studies of Y$_{2}$Ti$_2$O$_7$ single crystals doped with Er$^{3+}$ and Yb$^{3+}$ ions by means of electron paramagnetic resonance (EPR) and dc-magnetometry are reported. EPR signals of the trigonal centers with the…

Strongly Correlated Electrons · Physics 2020-01-15 R. G. Batulin , M. A. Cherosov , I. F. Gilmutdinov , A. G. Kiiamov , V. V. Klekovkina , B. Z. Malkin , A. A. Rodionov , R. V. Yusupov

Electron localization in the Si/Ge heterosystem with Si quantum dots (QDs) was studied by transport and electron spin resonance (ESR) measurements. For Si QD structures grown on Ge(111) substrates, the ESR signal with g-factor…

High resolution low-temperature absorption spectra of 0.2% Pr^3+ doped CsCdBr_3 were measured in the spectral region 2000--7000 cm-1. Positions and widths of the crystal field levels within the 3H5, 3H4, 3F2, and 3F3 multiplets of the Pr^3+…

We report an Fe $K$-edge resonant inelastic X-ray scattering (RIXS) study of K$_{0.83}$Fe$_{1.53}$Se$_2$. This material is an insulator, unlike many parent compounds of iron-based superconductors. We found a sharp excitation around 1 eV,…

A detailed study of the spin dynamics of the S-state ions Gd3+ and Eu2+ in the filled skutterudites La1-xRxPt4Ge12 (R= Gd, Eu) is reported. The spin dynamics is investigated directly by means of Gd3+ and Eu2+ electron spin resonance (ESR),…

Strongly Correlated Electrons · Physics 2015-06-04 F. A. Garcia , R. Gumeniuk , W. Schnelle , J. Sichelschmidt , A. Leithe-Jasper , Yu. Grin , F. Steglich

We present a comprehensive spectroscopic study of C$_{2v}$ point-group symmetry sites in Sm$^{3+}$:CaF$_2$/SrF$_2$ codoped with either NaF or LiF. Data includes electron paramagnetic resonance measurements of Zeeman and hyperfine…

Materials Science · Physics 2018-12-05 Sebastian P Horvath , Jon-Paul R Wells , Michael F Reid , Mitsuo Yamaga , Makoto Honda

High-Field Electron Spin Resonance measurements were made on powder samples of Cu_{1-x}Zn_{x}GeO_{3} (x=0.00, 0.01, 0.02, 0.03 and 0.05) at different frequencies (95, 110, 190, 220, 330 and 440 GHz) at low temperatures. The spectra of the…

Strongly Correlated Electrons · Physics 2015-06-25 A. K. Hassan , L. A. Pardi , G. B. Martins , G. Cao , L-C. Brunel

A systematic electron spin resonance (ESR) investigation of the low temperature regime for the (ET)2SF5CF2SO3 system was performed in the frequency range of ~200-700 GHz, using backward wave oscillator sources, and at fields up to 25 T.…

The main purpose of this research is dedicated to the ESR study of the impurity ions such as Gd3+ in the natural zircon crystal because the presence of the impurity ions in the crystal usually causes color in crystal. The Zeeman…

Materials Science · Physics 2018-10-03 Araya Mungchamnankit , Suwimon Ruengsri

ESR-study of the Ni-doped spin-Peierls compound CuGeO3 has been performed in the frequency range 9-75 GHz. At low temperatures the g-factor is smaller than the value expected for Cu- and Ni-ions. This anomaly is explained by the formation…

Strongly Correlated Electrons · Physics 2012-02-02 V. N. Glazkov , A. I. Smirnov , O. A. Petrenko , D. Mck. Paul , A. G. Vetkin , R. M. Eremina

Photoluminescence, thermally stimulated luminescence (TSL) and EPR characteristics of the Ce3+ doped single crystals of multicomponent Y1Lu2GaxAl5-xO12 and Lu3GaxAl5-xO12 garnets with different Ga contents (x = 0, 1, 2, 3, 4, 5) excited in…

Using bulk magnetization along with elastic and inelastic neutron scattering techniques, we have investigated the phase diagram of Fe$_{1+y}$Se$_{x}$Te$_{1-x}$ and the nature of magnetic correlations in three nonsuperconducting samples of…

The local structural environment and the spatial distribution of iron and aluminum ions in sodosilicate glasses with composition NaFexAl1-xSi2O6 (x = 1, 0.8, 0.5 and 0) is studied by high-resolution neutron diffraction combined with…

Materials Science · Physics 2008-12-18 Coralie Weigel , Laurent Cormier , Georges Calas , Laurence Galoisy , Daniel Bowron

The role of orbital differentiation on the emergence of superconductivity in the Fe-based superconductors remains an open question to the scientific community. In this investigation, we employ a suitable microscopic spin probe technique,…

Superconductivity · Physics 2014-02-11 P. F. S. Rosa , C. Adriano , T. M. Garitezi , T. Grant , Z. Fisk , R. R. Urbano , P. G. Pagliuso

Conduction Electron Spin Resonance (CESR) was measured on a thick slab of CaC6 in the normal and superconducting state. A surprising increase of the CESR intensity below Tc can not be explained by the theoretically predicted change in spin…

Superconductivity · Physics 2009-11-13 F. Muranyi , G. Urbanik , V. Kataev , B. Buechner

The results of high frequency (60-315 GHz) studies of the ESR in CuGeO3 single crystals containing 0.9% of the Mn impurity are reported. The quantitative ESR line shape analysis shows that the low temperature (T<40 K) magnetic…

Strongly Correlated Electrons · Physics 2007-05-23 S. V. Demishev , A. V. Semeno , N. E. Sluchanko , N. A. Samarin , I. E. Tarasenko , H. Ohta , S. Okubo