Naslov
A paramagnetic crystal of DPPH deposited on the crystal of single molecular magnet ; EPR evidence on proximity effect

Autori
Rakvin, Boris ; Žilić, Dijana ; Dalal, Naresh S.

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, znanstveni

Izvornik
Book of Abstracts EUROMAR 2011, Magnetic Resonance Conference, 21-25.08.2011 / - Frankfurt : Cuvillier Verlag, Gottingen, 2011, 206-206

ISBN
978-3-86955-845-5

Skup
EUROMAR 2011 (joint with the 33rd  Discussion  Meeting of the MR Spectroscopy Division of the GDCh and 8th European Federation of EPR Groups Meeting)

Mjesto i datum
Frankfurt na Majni, Njemačka, 21.08.2011. - 25.08.2011

Vrsta sudjelovanja
Poster

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
molecular magnets; DPPH; proximity effect

Sažetak
Single-molecule magnets (SMMs) are candidates for many applications, such as quantum computation, high-density magnetic data storage and magnetoelectronics. In order to develop these applications, it is important, among others, to investigate when they are in contact with other dissimilar materials because it is expected that their wave functions and/or magnetic fields extend considerably outside the physical structure. This also implies to improve detection of magnetic field on their surface i. e. magnetic field generated by the crystal in the vicinity of its surface. Thus, at the surface of the SMM crystal one expects time dependent as well as magnetic field depended distribution of magnetic fields. EPR spectroscopy accompanied with a local paramagnetic probe will be employed as an alternative simple detection method. Detection of such local fields on surface at very short time interval (~ 0.1 ns), as well as linewidth anisotropy of probe, as function of orientation of SMM crystal in the external magnetic field are in the focus of this presentation. It is shown that proximity effect arise due to interaction of the local fields with zero field splitting of excited triplet state in DPPH crystal.

Izvorni jezik
Engleski

Znanstvena područja
Fizika, Kemija

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