48 citations · 130 across the 11 of their papers we have counts for
11 papers
Dissipative Landau-Zener transition with decoherence rate
Le Tuan Anh Ho, Liviu Ungur, Liviu F. Chibotaru
An innovative microscopic model with a minimal number of parameters: tunneling splitting gap, external field sweeping velocity, and decoherence rate is used to describe dynamics of…
Coherence/incoherence transition temperature in molecular spin
Le Tuan Anh Ho, Liviu Ungur, Liviu F. Chibotaru
We examine the coherence/incoherence transition temperature of a generic molecular spin. Our results demonstrates that a molecular spin with a high coherence/incoherence transition…
Quantum tunneling of magnetization in molecular spin
Le Tuan Anh Ho, Liviu Ungur, Liviu F. Chibotaru
We examine the quantum tunneling of magnetization in molecular spin in weak interaction with a bath subject to Redfield master equation. By designing a microscopic model for a mult…
Non-monotonic temperature dependence and first-order phase transition of relaxation times in molecular spin
Le Tuan Anh Ho, Liviu Ungur, Liviu F. Chibotaru
We derive a simple system of equations to describe the magnetization relaxation of a molecular spin in weak interaction with a thermal bath for the whole temperature domain. Using…
Unique determination of localized basis in molecular spin
Le Tuan Anh Ho, Liviu Ungur
Localized basis plays an important role in comprehending the magnetic dynamics in molecular spins from a physics perspective. Nonetheless, the uniqueness and rigor of its determina…
Rectangle-like hysteresis in a Dysprosium Metallacrown Magnet with Linear F-Dy-F Anisotropic Moiety
Si-Guo Wu, Ze-Yu Ruan, Jie-Yu Zheng +7
Single-molecule magnets (SMMs) exhibiting open hysteresis loops may potentially apply to molecule-based information processing and storage. However, the capacity to retain magnetic…
Field-induced oscillation of magnetization blocking in holmium metallacrown magnet
Si-Guo Wu, Ze-Yu Ruan, Guo-Zhang Huang +11
Single-molecule magnets (SMMs) are promising elements for quantum informatics. In the presence of strong magnetic anisotropy, they exhibit magnetization blocking - a magnetic memor…
Intermolecular mechanism for multiple maxima in molecular dynamic susceptibility
Le Tuan Anh Ho, Liviu F. Chibotaru
A simple two-level system is introduced to demonstrate the existence of the intermolecular mechanism of the appearance/disappearance of multiple maxima in molecular dynamic suscept…
Universal secular form of non-secular master equation
Le Tuan Anh Ho, Liviu F. Chibotaru
We develop a more accurate secular form for the Redfield non-secular master equation, which is insensitive to the choice of the basis. This completely solves the ambiguity on which…
Spin-lattice relaxation of magnetic centers in molecular crystals at low temperature
Le Tuan Anh Ho, Liviu F. Chibotaru
We study the spin-phonon relaxation rate of both Kramers and non-Kramers molecular magnets in strongly diluted samples at low temperature. Using the "rotational" contribution to th…
Multiple relaxation times in single-molecule magnets
Le Tuan Anh Ho, Liviu F. Chibotaru
Multiple relaxation times detected in the ac magnetic susceptibility of several single-molecule magnets have been always assigned to extrinsic factors, such as nonequivalent magnet…