Matches in SemOpenAlex for { <https://semopenalex.org/work/W1680234485> ?p ?o ?g. }
Showing items 1 to 79 of
79
with 100 items per page.
- W1680234485 abstract "${}^{27}mathrm{Al}$ NMR results are presented in grain aligned ${mathrm{PrNiAl}}_{4}$ in the temperature range 30--320 K. The Knight shift (K) and the spin-lattice relaxation rate ${(T}_{1}{)}^{ensuremath{-}1}$ have been measured for the different aluminum sites present in the unit cell of the crystal. Temperature dependence of the $4f$ electron contribution to the Knight shift ${(K}_{f})$ clearly shows the development of ferromagnetic short-range correlations, below 150 K, within the Pr ions in chains along the crystallographic a axis. On the other hand, the variation of ${K}_{f}$ with the bulk susceptibility shows the onset of antiferromagnetic correlation between the two adjacent chains at near 85 K. The NMR results thus confirm the presence of two types of magnetic correlations which was earlier suggested from neutron scattering in this system. An almost temperature-independent behavior of ${(T}_{1f}{)}^{ensuremath{-}1}$ in the range 85--320 K suggests that the fluctuation frequency of the local electronic moments $({ensuremath{omega}}_{e})$ is much greater than the ${}^{27}mathrm{Al}$ nuclear resonance frequency. However, below this temperature range down to 30 K, a large enhancement of ${(T}_{1f}{)}^{ensuremath{-}1}$ is observed suggesting the development of magnetic correlations. However, this data cannot distinguish the nature of the correlation as it was reflected in the Knight shift behavior. The temperature dependence of the spin-correlation rate of Pr local moments follows a temperature independent behavior down to 85 K, below this temperature it falls rapidly. This indicates the development of spin correlations at finite $mathbf{q}$ below 85 K, leading to temperature dependent enhancement of spin-spin relaxation rate suggesting the critical slowing down of the electronic spin fluctuations." @default.
- W1680234485 created "2016-06-24" @default.
- W1680234485 creator A5057327256 @default.
- W1680234485 creator A5071625616 @default.
- W1680234485 creator A5074095422 @default.
- W1680234485 date "2004-03-24" @default.
- W1680234485 modified "2023-09-27" @default.
- W1680234485 title "27AlNMR study in grain-alignedPrNiAl4" @default.
- W1680234485 cites W1988300757 @default.
- W1680234485 cites W1990452990 @default.
- W1680234485 cites W1995636846 @default.
- W1680234485 cites W2000772371 @default.
- W1680234485 cites W2004261815 @default.
- W1680234485 cites W2011802360 @default.
- W1680234485 cites W2017014424 @default.
- W1680234485 cites W2045720613 @default.
- W1680234485 cites W2049119483 @default.
- W1680234485 cites W2085365343 @default.
- W1680234485 cites W2113740414 @default.
- W1680234485 cites W4213358678 @default.
- W1680234485 cites W791679334 @default.
- W1680234485 doi "https://doi.org/10.1103/physrevb.69.094427" @default.
- W1680234485 hasPublicationYear "2004" @default.
- W1680234485 type Work @default.
- W1680234485 sameAs 1680234485 @default.
- W1680234485 citedByCount "4" @default.
- W1680234485 crossrefType "journal-article" @default.
- W1680234485 hasAuthorship W1680234485A5057327256 @default.
- W1680234485 hasAuthorship W1680234485A5071625616 @default.
- W1680234485 hasAuthorship W1680234485A5074095422 @default.
- W1680234485 hasConcept C104015590 @default.
- W1680234485 hasConcept C120665830 @default.
- W1680234485 hasConcept C121332964 @default.
- W1680234485 hasConcept C155355069 @default.
- W1680234485 hasConcept C15744967 @default.
- W1680234485 hasConcept C191486275 @default.
- W1680234485 hasConcept C192562407 @default.
- W1680234485 hasConcept C26873012 @default.
- W1680234485 hasConcept C2776029896 @default.
- W1680234485 hasConcept C39353612 @default.
- W1680234485 hasConcept C54101563 @default.
- W1680234485 hasConcept C76097060 @default.
- W1680234485 hasConcept C77805123 @default.
- W1680234485 hasConcept C82217956 @default.
- W1680234485 hasConcept C97355855 @default.
- W1680234485 hasConceptScore W1680234485C104015590 @default.
- W1680234485 hasConceptScore W1680234485C120665830 @default.
- W1680234485 hasConceptScore W1680234485C121332964 @default.
- W1680234485 hasConceptScore W1680234485C155355069 @default.
- W1680234485 hasConceptScore W1680234485C15744967 @default.
- W1680234485 hasConceptScore W1680234485C191486275 @default.
- W1680234485 hasConceptScore W1680234485C192562407 @default.
- W1680234485 hasConceptScore W1680234485C26873012 @default.
- W1680234485 hasConceptScore W1680234485C2776029896 @default.
- W1680234485 hasConceptScore W1680234485C39353612 @default.
- W1680234485 hasConceptScore W1680234485C54101563 @default.
- W1680234485 hasConceptScore W1680234485C76097060 @default.
- W1680234485 hasConceptScore W1680234485C77805123 @default.
- W1680234485 hasConceptScore W1680234485C82217956 @default.
- W1680234485 hasConceptScore W1680234485C97355855 @default.
- W1680234485 hasIssue "9" @default.
- W1680234485 hasLocation W16802344851 @default.
- W1680234485 hasOpenAccess W1680234485 @default.
- W1680234485 hasPrimaryLocation W16802344851 @default.
- W1680234485 hasRelatedWork W1570954567 @default.
- W1680234485 hasRelatedWork W1657486952 @default.
- W1680234485 hasRelatedWork W1991053180 @default.
- W1680234485 hasRelatedWork W2003589952 @default.
- W1680234485 hasRelatedWork W2011240132 @default.
- W1680234485 hasRelatedWork W2012123900 @default.
- W1680234485 hasRelatedWork W2018574624 @default.
- W1680234485 hasRelatedWork W2059002134 @default.
- W1680234485 hasRelatedWork W2082483779 @default.
- W1680234485 hasRelatedWork W2260526591 @default.
- W1680234485 hasVolume "69" @default.
- W1680234485 isParatext "false" @default.
- W1680234485 isRetracted "false" @default.
- W1680234485 magId "1680234485" @default.
- W1680234485 workType "article" @default.