Research output: Contribution to journal › Article › peer-review
Theoretical basis for switching a kramers single molecular magnet by circularly-polarized radiation. / Maryasov, Alexander G.; Bowman, Michael K.; Fedin, Matvey V. et al.
In: Materials, Vol. 12, No. 23, 3865, 01.12.2019.Research output: Contribution to journal › Article › peer-review
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TY - JOUR
T1 - Theoretical basis for switching a kramers single molecular magnet by circularly-polarized radiation
AU - Maryasov, Alexander G.
AU - Bowman, Michael K.
AU - Fedin, Matvey V.
AU - Veber, Sergey L.
N1 - Publisher Copyright: © 2019 by the authors. Copyright: Copyright 2019 Elsevier B.V., All rights reserved.
PY - 2019/12/1
Y1 - 2019/12/1
N2 - The d-group Kramers ions, having strong zero field splitting (ZFS) with axial symmetry and a negative D value for the ZFS Hamiltonian, are widely considered as candidates for use as single molecular magnets (SMMs). An important need is the means to switch the SMM between its states in a reasonably short and predictable period of time, which is generally not available. We propose an approach, Zeeman-far infrared (ZeFIR) double resonance, in which circularly polarized alternating magnetic fields in the far infrared (FIR) range induce selective magnetic dipole transitions between different Kramers doublets of the SMM and polarized microwave (mw) pulses transfer excitation inside the upper Kramers doublet. A combination of FIR and mw pulses allows unidirectional switching between +S and -S states of the ion. The proposed approach is considered for a model quartet system with total spin S = 3/2, which seems to be the most promising object for selective resonance manipulations of its states by circularly polarized radiation.
AB - The d-group Kramers ions, having strong zero field splitting (ZFS) with axial symmetry and a negative D value for the ZFS Hamiltonian, are widely considered as candidates for use as single molecular magnets (SMMs). An important need is the means to switch the SMM between its states in a reasonably short and predictable period of time, which is generally not available. We propose an approach, Zeeman-far infrared (ZeFIR) double resonance, in which circularly polarized alternating magnetic fields in the far infrared (FIR) range induce selective magnetic dipole transitions between different Kramers doublets of the SMM and polarized microwave (mw) pulses transfer excitation inside the upper Kramers doublet. A combination of FIR and mw pulses allows unidirectional switching between +S and -S states of the ion. The proposed approach is considered for a model quartet system with total spin S = 3/2, which seems to be the most promising object for selective resonance manipulations of its states by circularly polarized radiation.
KW - Circular polarization
KW - Far infrared spectroscopy
KW - Kramers ion
KW - Magnetization inversion
KW - Selective transition
KW - SMM
KW - Zero field splitting
KW - SPIN
KW - circular polarization
KW - MAGNETIZATION
KW - selective transition
KW - zero field splitting
KW - magnetization inversion
KW - ION MAGNET
KW - RESONANCE
KW - far infrared spectroscopy
UR - https://www.scopus.com/record/display.uri?eid=2-s2.0-85075899604&origin=resultslist&sort=plf-f&src=s&st1=Theoretical+basis+for+switching+a+kramers+single+molecular+magnet+by+circularly-polarized+radiation&st2=&sid=86dfac33fdde4ce2e4a8a07fa9b41096&sot=b&sdt=b&sl=114&s=TITLE-ABS-KEY%28Theoretical+basis+for+switching+a+kramers+single+molecular+magnet+by+circularly-polarized+radiation%29&relpos=0&citeCnt=0&searchTerm=
U2 - 10.3390/ma12233865
DO - 10.3390/ma12233865
M3 - Article
C2 - 31771118
AN - SCOPUS:85075899604
VL - 12
JO - Materials
JF - Materials
SN - 1996-1944
IS - 23
M1 - 3865
ER -
ID: 22576606