Matches in SemOpenAlex for { <https://semopenalex.org/work/W2480931640> ?p ?o ?g. }
Showing items 1 to 87 of
87
with 100 items per page.
- W2480931640 abstract "Two porous carbon-based samples doped with Au and Co are investigated. The neutron diffraction study reveals an amorphous structure of both samples. The Co-doped sample exhibits a long-range ferromagnetic (FM) ordering at 2.6 K. The NMR investigations demonstrate, that the samples are obtained with a partial carbonization of initial aromatic compounds and do not reach a state of glassy carbon. The magnetization, longitudinal nonlinear response to a weak ac field and electron magnetic resonance data give evidences for presence of FM clusters in the samples well above 300 K. A short-range character of the FM ordering in the Au-doped sample transforms below T$_C approx$ 210 K into another inhomogeneous FM state. Besides the FM clusters, this state contains a subsystem with a long-range FM ordering (matrix) formed by paramagnetic centers, existing outside the clusters. The nonlinear response data suggest a percolative character of the long-range FM matrix, which is connected probably with a porous sample structure. The magnetization data give evidence for the formation of an inhomogeneous state in the Co-doped sample, similar to that in the Au-doped one. However, this state is formed at higher temperatures, lying well above 350 K, and exhibits a more homogeneous arrangement of the FM nanoparticles and the FM matrix. Temperature dependence of the magnetization in the Au-doped sample is attributable to changes of the domain formation regime in the FM matrix on cooling, connected with the inhomogeneous character of its FM state. Such peculiarity is absent in the Co-doped sample below 350 K, which is in agreement with formation of the FM state in this sample at much higher temperatures. Further cooling below T ~ 3(10) K leads to a steep increase of the magnetization in both samples. This is attributable to the domain rearrangement in the inhomogeneous FM state at low temperatures." @default.
- W2480931640 created "2016-08-23" @default.
- W2480931640 creator A5022852796 @default.
- W2480931640 creator A5024329464 @default.
- W2480931640 creator A5025224523 @default.
- W2480931640 creator A5033018537 @default.
- W2480931640 creator A5043303996 @default.
- W2480931640 creator A5046717258 @default.
- W2480931640 creator A5050750045 @default.
- W2480931640 creator A5058925104 @default.
- W2480931640 creator A5085323874 @default.
- W2480931640 creator A5087909314 @default.
- W2480931640 date "2014-06-10" @default.
- W2480931640 modified "2023-10-06" @default.
- W2480931640 title "Unusual scenario of the temperature evolution of magnetic state in novel carbon-based nanomaterials" @default.
- W2480931640 cites W1966235885 @default.
- W2480931640 cites W2080334952 @default.
- W2480931640 hasPublicationYear "2014" @default.
- W2480931640 type Work @default.
- W2480931640 sameAs 2480931640 @default.
- W2480931640 citedByCount "0" @default.
- W2480931640 crossrefType "posted-content" @default.
- W2480931640 hasAuthorship W2480931640A5022852796 @default.
- W2480931640 hasAuthorship W2480931640A5024329464 @default.
- W2480931640 hasAuthorship W2480931640A5025224523 @default.
- W2480931640 hasAuthorship W2480931640A5033018537 @default.
- W2480931640 hasAuthorship W2480931640A5043303996 @default.
- W2480931640 hasAuthorship W2480931640A5046717258 @default.
- W2480931640 hasAuthorship W2480931640A5050750045 @default.
- W2480931640 hasAuthorship W2480931640A5058925104 @default.
- W2480931640 hasAuthorship W2480931640A5085323874 @default.
- W2480931640 hasAuthorship W2480931640A5087909314 @default.
- W2480931640 hasConcept C113196181 @default.
- W2480931640 hasConcept C115260700 @default.
- W2480931640 hasConcept C121332964 @default.
- W2480931640 hasConcept C124712363 @default.
- W2480931640 hasConcept C153294291 @default.
- W2480931640 hasConcept C185592680 @default.
- W2480931640 hasConcept C192562407 @default.
- W2480931640 hasConcept C26873012 @default.
- W2480931640 hasConcept C32546565 @default.
- W2480931640 hasConcept C39353612 @default.
- W2480931640 hasConcept C43617362 @default.
- W2480931640 hasConcept C57863236 @default.
- W2480931640 hasConcept C62520636 @default.
- W2480931640 hasConcept C82217956 @default.
- W2480931640 hasConceptScore W2480931640C113196181 @default.
- W2480931640 hasConceptScore W2480931640C115260700 @default.
- W2480931640 hasConceptScore W2480931640C121332964 @default.
- W2480931640 hasConceptScore W2480931640C124712363 @default.
- W2480931640 hasConceptScore W2480931640C153294291 @default.
- W2480931640 hasConceptScore W2480931640C185592680 @default.
- W2480931640 hasConceptScore W2480931640C192562407 @default.
- W2480931640 hasConceptScore W2480931640C26873012 @default.
- W2480931640 hasConceptScore W2480931640C32546565 @default.
- W2480931640 hasConceptScore W2480931640C39353612 @default.
- W2480931640 hasConceptScore W2480931640C43617362 @default.
- W2480931640 hasConceptScore W2480931640C57863236 @default.
- W2480931640 hasConceptScore W2480931640C62520636 @default.
- W2480931640 hasConceptScore W2480931640C82217956 @default.
- W2480931640 hasLocation W24809316401 @default.
- W2480931640 hasOpenAccess W2480931640 @default.
- W2480931640 hasPrimaryLocation W24809316401 @default.
- W2480931640 hasRelatedWork W1481805804 @default.
- W2480931640 hasRelatedWork W1511955431 @default.
- W2480931640 hasRelatedWork W1640911526 @default.
- W2480931640 hasRelatedWork W1979070596 @default.
- W2480931640 hasRelatedWork W1994250356 @default.
- W2480931640 hasRelatedWork W2012525573 @default.
- W2480931640 hasRelatedWork W2094535716 @default.
- W2480931640 hasRelatedWork W2358004492 @default.
- W2480931640 hasRelatedWork W2381188647 @default.
- W2480931640 hasRelatedWork W2389674222 @default.
- W2480931640 hasRelatedWork W2461461129 @default.
- W2480931640 hasRelatedWork W2473484069 @default.
- W2480931640 hasRelatedWork W2898703608 @default.
- W2480931640 hasRelatedWork W2949137811 @default.
- W2480931640 hasRelatedWork W2951726992 @default.
- W2480931640 hasRelatedWork W3007403506 @default.
- W2480931640 hasRelatedWork W3037565090 @default.
- W2480931640 hasRelatedWork W3038835579 @default.
- W2480931640 hasRelatedWork W3121820322 @default.
- W2480931640 hasRelatedWork W1668986106 @default.
- W2480931640 isParatext "false" @default.
- W2480931640 isRetracted "false" @default.
- W2480931640 magId "2480931640" @default.
- W2480931640 workType "article" @default.