1972
DOI: 10.1143/jpsj.33.671
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Nuclear Magnetic Resonances and Long-Range Superexchange Interactions via Cu-O-V-O-Cu Linkages in LiCuVO4

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Cited by 20 publications
(4 citation statements)
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“…This broadening is attributed to an evolving distribution of hyperfine fields at the nuclear sites approaching the transition into a long-range-ordered state of the electronic system at a T N = 1.3 K. 16,18,20 Figure 2͑A͒ and 2͑B͒ show the shift of the 7 Li line for the orientation H ʈ b and H Ќ b, respectively. For both orientations the lineshift K͑T͒ nicely follows the Bonner-Fisher-type behavior 29 for the bulk susceptibility bulk ͑T͒ of an antiferromagnetic spin chain as indicated by the solid line.…”
Section: Amentioning
confidence: 99%
See 1 more Smart Citation
“…This broadening is attributed to an evolving distribution of hyperfine fields at the nuclear sites approaching the transition into a long-range-ordered state of the electronic system at a T N = 1.3 K. 16,18,20 Figure 2͑A͒ and 2͑B͒ show the shift of the 7 Li line for the orientation H ʈ b and H Ќ b, respectively. For both orientations the lineshift K͑T͒ nicely follows the Bonner-Fisher-type behavior 29 for the bulk susceptibility bulk ͑T͒ of an antiferromagnetic spin chain as indicated by the solid line.…”
Section: Amentioning
confidence: 99%
“…A broad range of properties of polycrystalline LiCuVO 4 have been studied such as structure, 9,10 susceptibility, 11,12 specific heat, 13,14 electrochemical properties, 15 and properties using resonance methods such as NMR and EPR. [16][17][18][19][20] This material gained some interest for its prospective use in rechargeable batteries 15 which are considered important for various applications. As single-crystalline material became available, 21 its properties have been studied by investigating the temperature T dependence of the magnetic susceptibility ͑T͒, magnetic structure in the ordered state using neutron diffraction 22 in combination with band-structure calculations, 23 EPR, 17 heat transport, and thermal conductivity 24,25 as well as lattice dynamics by infrared spectroscopy.…”
Section: Introductionmentioning
confidence: 99%
“…The structure of LiCuVO 4 [1,2] is characterized by chains of edge-coupled LiO 6 and CuO 6 octahedra running along the a-and b-crystal axes, respectively, and thus consists of alternating packed layers containing arrays of Li + or Cu 2+ chains. Within the planes, neighbouring Cu chains are connected with each other by VO 4 tetrahedra that alternate up and down along the chain direction and form Cu-O-V-O-Cu superexchange bonds.…”
mentioning
confidence: 99%
“…Our attempt to simulate the observed 7 Li NMR spectra by a quadrupole triplet gives the quadrupole frequency of 7 Li nuclei of about 1.7 MHz, which is unlikely because it is at least 1 order of magnitude higher than typical values of 7 Li quadrupole frequencies in lithium cuprates. For example, ν Q (Li) = 51.7 kHz in LiCu 2 O 2 , 45 kHz in La 2 Cu 0.5 Li 0.5 O 4 , and 48 kHz or 42 kHz in LiCuVO 4 , more than 30 times less than 1.7 MHz. Moreover, no traces of visible quadrupole effects were found in the room-temperature 7 Li spectrum of LiCu 2 (VO 4 )­(OH) 2 presented in the upper inset to Figure .…”
Section: Methodsmentioning
confidence: 99%