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Pregled bibliografske jedinice broj: 632568

Frozen-in disorder probed by low-temperature electron spin relaxation

Kveder, Marina; Rakvin, Boris; Jokić, Milan; Reijerse, Edward
Frozen-in disorder probed by low-temperature electron spin relaxation // Solid state communications, 167 (2013), 23-26 doi:10.1016/j.ssc.2013.04.034 (međunarodna recenzija, članak, znanstveni)

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Naslov
Frozen-in disorder probed by low-temperature electron spin relaxation

Autori
Kveder, Marina ; Rakvin, Boris ; Jokić, Milan ; Reijerse, Edward

Izvornik
Solid state communications (0038-1098) 167 (2013); 23-26

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
ethanol; glassy state; spectral diffusion in glass; EPR

Sažetak
Here we demonstrate that two extreme cases of molecular packing, i.e. the crystalline and glassy state of solid ethanol, which define the complete experimental span of attainable host matrix frustration, can be efficiently probed by measuring the electron spin phase memory relaxation time, TM , of an incorporated TEMPO nitroxyl radical at X-band EPR frequency. The sensitivity of TM is based on the spectral and spin diffusion effects, which reflect the spatial distribution of involved spins as a function of molecular frozen-in disorder. By keeping the excited region of the EPR spectrum fixed one can monitor the changes in the density of spin packets, upon the state transformation of the host. EPR experiments performed at 94 GHz show a clear difference in local distribution of paramagnetic centers in ethanol glass as compared to crystalline ethanol. The results support the idea that, by measuring TM and properties of density of spin packets, one can explore the extent of molecular disorder.

Izvorni jezik
Engleski

Znanstvena područja
Fizika



POVEZANOST RADA

Projekti:
098-0982904-2912 - Samo-udruživanje u gelovima i sinteza funkcionalnih hibridnih materijala (Frkanec, Leo, MZOS ) ( CroRIS)
098-0982915-2939 - Molekulska struktura i dinamika sustava s paramagnetskim česticama (Ilakovac-Kveder, Marina, MZOS ) ( CroRIS)

Ustanove:
Institut "Ruđer Bošković", Zagreb

Profili:

Avatar Url Marina Ilakovac-Kveder (autor)

Avatar Url Milan Jokić (autor)

Avatar Url Boris Rakvin (autor)

Poveznice na cjeloviti tekst rada:

doi www.sciencedirect.com dx.doi.org

Citiraj ovu publikaciju:

Kveder, Marina; Rakvin, Boris; Jokić, Milan; Reijerse, Edward
Frozen-in disorder probed by low-temperature electron spin relaxation // Solid state communications, 167 (2013), 23-26 doi:10.1016/j.ssc.2013.04.034 (međunarodna recenzija, članak, znanstveni)
Kveder, M., Rakvin, B., Jokić, M. & Reijerse, E. (2013) Frozen-in disorder probed by low-temperature electron spin relaxation. Solid state communications, 167, 23-26 doi:10.1016/j.ssc.2013.04.034.
@article{article, author = {Kveder, Marina and Rakvin, Boris and Joki\'{c}, Milan and Reijerse, Edward}, year = {2013}, pages = {23-26}, DOI = {10.1016/j.ssc.2013.04.034}, keywords = {ethanol, glassy state, spectral diffusion in glass, EPR}, journal = {Solid state communications}, doi = {10.1016/j.ssc.2013.04.034}, volume = {167}, issn = {0038-1098}, title = {Frozen-in disorder probed by low-temperature electron spin relaxation}, keyword = {ethanol, glassy state, spectral diffusion in glass, EPR} }
@article{article, author = {Kveder, Marina and Rakvin, Boris and Joki\'{c}, Milan and Reijerse, Edward}, year = {2013}, pages = {23-26}, DOI = {10.1016/j.ssc.2013.04.034}, keywords = {ethanol, glassy state, spectral diffusion in glass, EPR}, journal = {Solid state communications}, doi = {10.1016/j.ssc.2013.04.034}, volume = {167}, issn = {0038-1098}, title = {Frozen-in disorder probed by low-temperature electron spin relaxation}, keyword = {ethanol, glassy state, spectral diffusion in glass, EPR} }

Časopis indeksira:


  • Current Contents Connect (CCC)
  • Web of Science Core Collection (WoSCC)
    • Science Citation Index Expanded (SCI-EXP)
    • SCI-EXP, SSCI i/ili A&HCI
  • Scopus

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