Quantum tunneling dominates the low temperature magnetization dynamics in molecular magnets and presents features that are strongly system dependent. The current discussion is focused on the terbium(III) bis(phtalocyanine) complex that should serve as a prototypical case for lanthanide molecular magnets. We analyze numerically the effect of non-axial interactions on the magnitude of the intrinsic tunnel splitting and show that usual suspects like the transverse ligand field and Zeeman interaction fail to explain the experimentally observed dynamics. We then propose through the nuclear quadrupolar interaction a viable mechanism that mixes, otherwise almost degenerate hyperfine states.
REFERENCES
1.
Y.-Z.
Zheng
, Z.
Zheng
, and X.-M.
Chen
, Coord. Chem. Rev.
258
, 1
(2014
). 2.
J.
Luzon
and R.
Sessoli
, Dalton Trans.
41
, 13556
(2012
). 3.
4.
A.
Ardavan
, O.
Rival
, J. J.
Morton
, S. J.
Blundell
, A. M.
Tyryshkin
, G. A.
Timco
, and R. E.
Winpenny
, Phys. Rev. Lett.
98
, 057201
(2007
). 5.
J. M.
Zadrozny
, J.
Niklas
, O. G.
Poluektov
, and D. E.
Freedman
, ACS Central Sci.
1
, 488
(2015
). 6.
M.
Atzori
, L.
Tesi
, E.
Morra
, M.
Chiesa
, L.
Sorace
, and R.
Sessoli
, J. Am. Chem. Soc.
138
, 2154
(2016
). 7.
M.
Ganzhorn
and W.
Wernsdorfer
, Molecular Magnets (Springer, 2014), pp. 319–364.8.
J.-L.
Liu
, Y.-C.
Chen
, and M.-L.
Tong
, Chem. Soc. Rev.
47
, 2431
(2018
). 9.
S. G.
McAdams
, A.-M.
Ariciu
, A. K.
Kostopoulos
, J. P.
Walsh
, and F.
Tuna
, Coord. Chem. Rev.
346
, 216
(2017
). 10.
B.
Barbara
, Molecular Magnets (Springer, 2014), pp. 17–60.11.
P. C.
Stamp
and A.
Gaita-Arino
, J. Mater. Chem.
19
, 1718
(2009
). 12.
F.
Troiani
and M.
Affronte
, Chem. Soc. Rev.
40
, 3119
(2011
). 13.
A.
Ghirri
, A.
Candini
, and M.
Affronte
, Magnetochemistry
3
, 12
(2017
). 14.
M.
Affronte
and F.
Troiani
, Molecular Magnets (Springer, 2014), pp. 249–273.15.
F.-S.
Guo
, B. M.
Day
, Y.-C.
Chen
, M.-L.
Tong
, A.
Mansikkamäki
, and R. A.
Layfield
, Angew. Chem. Int. Ed.
56
, 11445
(2017
). 16.
C. A.
Goodwin
, F.
Ortu
, D.
Reta
, N. F.
Chilton
, and D. P.
Mills
, Nature
548
, 439
(2017
). 17.
S.
Thiele
, F.
Balestro
, R.
Ballou
, S.
Klyatskaya
, M.
Ruben
, and W.
Wernsdorfer
, Science
344
, 1135
(2014
). 18.
C.
Godfrin
, A.
Ferhat
, R.
Ballou
, S.
Klyatskaya
, M.
Ruben
, W.
Wernsdorfer
, and F.
Balestro
, Phys. Rev. Lett.
119
, 187702
(2017
). 19.
N.
Ishikawa
, M.
Sugita
, T.
Ishikawa
, S.-y.
Koshihara
, and Y.
Kaizu
, J. Am. Chem. Soc.
125
, 8694
(2003
). 20.
N.
Ishikawa
, M.
Sugita
, and W.
Wernsdorfer
, Angew. Chem. Int. Ed.
44
, 2931
(2005
). 21.
T.
Komeda
, H.
Isshiki
, J.
Liu
, Y.-F.
Zhang
, N.
Lorente
, K.
Katoh
, B. K.
Breedlove
, and M.
Yamashita
, Nat. Commun.
2
, 217
(2011
). 22.
M.
Urdampilleta
, S.
Klyatskaya
, J.-P.
Cleuziou
, M.
Ruben
, and W.
Wernsdorfer
, Nat. Mater.
10
, 502
(2011
). 23.
R.
Vincent
, S.
Klyatskaya
, M.
Ruben
, W.
Wernsdorfer
, and F.
Balestro
, Nature
488
, 357
(2012
). 24.
H.
Konami
, M.
Hatano
, and A.
Tajiri
, Chem. Phys. Lett.
160
, 163
(1989
). 25.
W.
Wernsdorfer
, Supercond. Sci. Technol.
22
, 064013
(2009
). 26.
N.
Ishikawa
, Struct. Bond
135
, 211
(2010
). 27.
A.
Abragam
and B.
Bleaney
, Electron Paramagnetic Resonance of Transition Ions
(Oxford University Press
, Oxford
, 2012
).28.
W.
Wernsdorfer
and R.
Sessoli
, Science
284
, 133
(1999
). 29.
D.
Gatteschi
, R.
Sessoli
, and J.
Villain
, Molecular Nanomagnets (Oxford University Press on Demand, 2006), Vol. 5.30.
W.
Wernsdorfer
, N.
Chakov
, and G.
Christou
, Phys. Rev. Lett.
95
, 037203
(2005
). 31.
E.
Del Barco
, A. D.
Kent
, S.
Hill
, J.
North
, N.
Dalal
, E.
Rumberger
, D.
Hendrickson
, N.
Chakov
, and G.
Christou
, J. Low Temp. Phys.
140
, 119
(2005
). 32.
J.
Liu
, E.
del Barco
, and S.
Hill
, Molecular Magnets (Springer, 2014), pp. 77–110.© 2019 Author(s).
2019
Author(s)
You do not currently have access to this content.
