Zobrazeno 1 - 10
of 37
pro vyhledávání: '"Ho, Le Tuan Anh"'
Autor:
Ho, Le Tuan Anh, Ungur, Liviu
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 determination have received limited attention. In this study, we propose a new
Externí odkaz:
http://arxiv.org/abs/2212.14639
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 the dissipative Landau-Zener transition in the presence of the decohe
Externí odkaz:
http://arxiv.org/abs/2212.13093
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 temperature should possess a low spin number and low axiality, or hig
Externí odkaz:
http://arxiv.org/abs/2212.13092
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 multilevel spin system using only a generic Hamiltonian and applying stati
Externí odkaz:
http://arxiv.org/abs/2212.13086
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 this for the intermediate temperature domain where the transition from
Externí odkaz:
http://arxiv.org/abs/2212.13078
Autor:
Wu, Si-Guo, Ruan, Ze-Yu, Zheng, Jie-Yu, Huang, Guo-Zhang, Vieru, Veacheslav, Chen, Yan-Cong, Ho, Le Tuan Anh, Liu, Jun-Liang, Chibotaru, Liviu F., Tong, Ming-Liang
Single-molecule magnets (SMMs) exhibiting open hysteresis loops may potentially apply to molecule-based information processing and storage. However, the capacity to retain magnetic memory is always limited by zero-field quantum tunneling of magnetiza
Externí odkaz:
http://arxiv.org/abs/2105.09586
Autor:
Wu, Si-Guo, Ruan, Ze-Yu, Huang, Guo-Zhang, Zheng, Jie-Yu, Vieru, Veacheslav, Taran, Gheorghe, Wang, Jin, Chen, Yan-Cong, Liu, Jun-Liang, Ho, Le Tuan Anh, Chibotaru, Liviu F., Wernsdorfer, Wolfgang, Chen, Xiao-Ming, Tong, Ming-Liang
Single-molecule magnets (SMMs) are promising elements for quantum informatics. In the presence of strong magnetic anisotropy, they exhibit magnetization blocking - a magnetic memory effect at the level of a single molecule. Recent studies have shown
Externí odkaz:
http://arxiv.org/abs/2006.04401
Autor:
Ho, Le Tuan Anh, Chibotaru, Liviu F.
Publikováno v:
Phys. Rev. B 98, 174418 (2018)
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 susceptibility at low temperature. With minimum two relaxation processes, qua
Externí odkaz:
http://arxiv.org/abs/1712.09135
Autor:
Ho, Le Tuan Anh, Chibotaru, Liviu F.
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 basis should be used when the secular approximation of the Redfield m
Externí odkaz:
http://arxiv.org/abs/1710.02053
Autor:
Ho, Le Tuan Anh, Chibotaru, Liviu F.
Publikováno v:
Phys. Rev. B 97, 024427 (2018)
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 the spin-phonon Hamiltonian, universal formulae for the relaxation rate
Externí odkaz:
http://arxiv.org/abs/1704.06699