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Просмотр по автору "Loidl A."

Просмотр по автору "Loidl A."

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  • Alternating spin-orbital order in tetragonal Sr 2VO 4 
    Eremin M.; Deisenhofer J.; Eremina R.; Teyssier J.; Van Der Marel D.; Loidl A. (2011)
    Considering spin-orbit coupling, the tetragonal crystal field, and all relevant superexchange processes including quantum interference, we derive expressions for the energy levels of the vanadium ions in tetragonal Sr 2VO ...
  • Anisotropic exchange in LiCu2 O2 
    Seidov Z.; Gavrilova T.; Eremina R.; Svistov L.; Bush A.; Loidl A.; Krug Von Nidda H. (2017)
    © 2017 American Physical Society. We investigate the magnetic properties of the multiferroic quantum-spin system LiCu2O2 by electron spin resonance (ESR) measurements at X- and Q-band frequencies in a wide temperature range ...
  • Anisotropic exchange in spin chains 
    Zakharov D.; Von Nidda H.; Eremin M.; Deisenhofer J.; Eremina R.; Loidl A. (2008)
    Quasi-one-dimensional (1D) spin systems are highly unconventional materials, which exhibit a wide variety of phenomena, including spin-Peierls transition and charge ordering. In this paper, we show that electron spin ...
  • Anisotropic exchange interactions in CuGeO3 probed by electron spin resonance spectroscopy 
    Eremina R.; Eremin M.; Glazkov V.; Krug von Nidda H.; Loidl A. (2003)
    The analysis of the anisotropy of the electron-spin resonance (ESR) linewidth in CuGeO3 taken at different temperatures, allows one to obtain relations between the anisotropic exchange-interaction parameters. The anisotropy ...
  • Anisotropic exchange interactions in CuTe2O5 
    Eremina R.; Gavrilova T.; Krug Von Nidda N.; Pimenov A.; Deisenhofer J.; Loidl A. (2008)
    Electron paramagnetic resonance (EPR) was used to study CuTe 2O5 single crystals at frequencies of 9.4 and 160 GHz. Analytic expressions for the second and fourth moments of the EPR line are deduced with inclusion of the ...
  • Anisotropy of the paramagnetic susceptibility in LaTiO3: The electron-distribution picture in the ground state 
    Eremina R.; Eremin M.; Iglamov V.; Hemberger J.; Krug Von Nidda H.; Lichtenberg F.; Loidl A. (2004)
    The energy-level scheme and wave functions of the titanium ions in LaTiO3 are calculated using crystal-field theory and spin-orbit coupling. The theoretically derived temperature dependence and anisotropy of the magnetic ...
  • Anisotropy paramagnetic susceptibility in LaTiO3 
    Eremina R.; Eremin M.; Iglamov V.; Hemberger J.; Von Nidda H.; Loidl A.; Lichtenberg F. (2005)
    The energy-level scheme and wave functions of titanium ions in LaTiO 3 are calculated using crystal-field theory. The theoretically derived temperature dependence of the magnetic susceptibility agrees with our new experimental ...
  • Charge order in NaV2O5 studied by EPR 
    Lohmann M.; Krug Von Nidda H.; Eremin M.; Loidl A.; Obermeier G.; Horn S. (2000)
    An exponential decrease in magnetic susceptibility in NaV2O5 is investigated using electron-paramagnetic resonance (EPR) measurements. Results show that with decreasing temperature, a quarter-filled ladder with strong ...
  • Dynamical Dzyaloshinsky-Moriya interaction in KCuF3 
    Eremin M.; Zakharov D.; Von Nidda H.; Eremina R.; Shuvaev A.; Pimenov A.; Ghigna P.; Deisenhofer J.; Loidl A. (2008)
    The spin dynamics of the prototypical quasi-one-dimensional antiferromagnetic Heisenberg spin S=1/2 chain KCuF3 is investigated by electron spin resonance spectroscopy. Our analysis shows that the peculiarities of the spin ...
  • Electron paramagnetic resonance studies of GdMnO 3 single crystal and thin film deposited onto a LaAlO 3 substrate 
    Yatsyk I.; Mamedov D.; Fazlizhanov I.; Gavrilova T.; Eremina R.; Andreev N.; Chichkov V.; Mukovskii Y.; von Nidda H.; Loidl A. (2012)
    Electronic paramagnetic resonance (EPR) spectra of a GdMnO 3 single crystal and GdMnO 3/LaAlO 3 thin film have been measured at X- and Q-band frequencies in the temperature range from 4. 2 to 300 K. It is found that the ...
  • Electron spin resonance and exchange paths in the orthorhombic dimer system Sr2VO4 
    Deisenhofer J.; Schaile S.; Teyssier J.; Wang Z.; Hemmida M.; Von Nidda H.; Eremina R.; Eremin M.; Viennois R.; Giannini E.; Van Der Marel D.; Loidl A. (2012)
    We report on susceptibility and electron spin resonance (ESR) measurements at X- and Q-band frequencies of Sr2VO4 with orthorhombic symmetry. In this dimer system, the V4+ ions are in tetrahedral environment and are coupled ...
  • Electronic correlations and crystal-field effects in RCu3Ru4 O12 (R=La, Pr, Nd) ELECTRONIC CORRELATIONS and CRYSTAL-FIELD ... A. GÜNTHER et al. 
    Gunther A.; Riegg S.; Kraetschmer W.; Wehrmeister S.; Buttgen N.; Scheidt E.W.; Von Nidda H.A.K.; Eremin M.V.; Arkhipova E.A.; Eremina R.M.; Krimmel A.; Mutka H.; Loidl A. (2020)
    © 2020 American Physical Society. Among the large class of A-site ordered perovskites of stoichiometry AC3B4O12, the rare-earth (R) ruthenates RCu3Ru4O12 (R=La, Pr, Nd) are interesting compounds due both to Ru-4d-derived ...
  • EPR study of the dynamic spin susceptibility in heavily doped YBa2Cu3O6+δ 
    Sichelschmidt J.; Elschner B.; Loidl A.; Kochelaev B. (1995)
    We report on measurements of the dynamic spin susceptibility of the CuO2-planes on single crystals of YBa2Cu3O6+δ using EPR techniques. Intrinsic signals due to the existence of paramagentic chain fragments (pcf) show a ...
  • EPR study of the dynamic spin susceptibility in heavily doped YBa2Cu3O6+δ 
    Sichelschmidt J.; Elschner B.; Loidl A.; Kochelaev B. (1995)
    Electron paramagnetic resonance (EPR) studies on single crystals of YBa2Cu3O6+δ were performed in a wide range of oxygen concentration δ. Intrinsic EPR signals due to the existence of paramagnetic chain fragments could be ...
  • ESR evidence for partial melting of the orbital order in LaMnO3 below the Jahn-Teller transition 
    Schaile S.; Von Nidda H.; Deisenhofer J.; Eremin M.; Tokura Y.; Loidl A. (2014)
    We report on high-temperature electron spin resonance studies of a detwinned LaMnO3 single crystal across the Jahn-Teller transition at TJT=750 K. The anisotropy of the linewidth and g factor reflects the local Jahn-Teller ...
  • ESR study in lightly doped La1-xSrxMnO3 
    Ivanshin V.; Deisenhofer J.; Krug Von Nidda H.; Loidl A.; Mukhin A.; Balbashov A.; Eremin M. (2000)
    We present a systematic electron-spin-resonance (ESR) study in single crystals of La1-xSrxMnO3(0≤x ≤0.2). The temperature dependence of the ESR linewidth marks all significant transitions between both orthorhombic (O′,O) ...
  • Evidence of the Plaquette Structure of Fe<inf>1+x</inf>Te Iron Telluride: Mössbauer Spectroscopy Study 
    Kiiamov A.; Tagirov L.; Vagizov F.; Tayurskii D.; Krug von Nidda H.; Croitori D.; Tsurkan V.; Loidl A. (2019)
    © 2019 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim Single-crystalline Fe1+xTe iron telluride with off-stoichiometric iron has been synthesized by the Bridgman method. The X-ray diffraction and wave-length-dispersive X-ray ...
  • Exchange-induced magnetic dipole mechanism of magnon sideband 
    Eremin M.; Deisenhofer J.; Fayzullin M.; Kant C.; Loidl A. (2011)
    We propose a new mechanism of exciton-magnon absorption in the 1D Heisenberg antiferromagnet KCuF3. It yields the correct description of the relative intensity of the spectral lines in both polarizations E⊥ c and E∥c. The ...
  • Griffiths phases vs magnetic polarons in the lightly doped La1-xSrxMno3 
    Ivanshin V.; Deisenhofer J.; Krug von Nidda H.; Loidl A. (2007)
    The nature of the ferromagnetic (FM)-paramagnetic (PM) transition in perovskite-doped manganites is the subject of considerable discussions. There is no general consensus about the microscopic physics of stable FM clusters ...
  • Influence of the FFLO-like state on the upper critical field of a superconductor/ferromagnet bilayer: Angular and temperature dependence 
    Lenk D.; Hemmida M.; Morari R.; Zdravkov V.; Ullrich A.; Müller C.; Sidorenko A.; Horn S.; Tagirov L.; Loidl A.; Von Nidda H.; Tidecks R. (2016)
    © 2016 American Physical Society.We investigated the upper critical magnetic field Hc of a superconductor-ferromagnet (S/F) bilayer of Nb/Cu41Ni59 and a Nb film (as reference). We obtained the dependence of Hc and Hc ...

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