Resonant tunnelling of the magnetization in molecular crystal of [(Mn 1-xCrx)12O12 (CH3COO) 16(H2O)4] 2CH3COOH4H2O (x0,0.03,0.04,0.05)

Guang He; Lun Hua He; Jun Rong Zhang; Hui Bo Cao; Li Qin Yan; Fang Wei Wang; Qi Wei Yan

doi:10.1088/1009-1963/16/6/050

Resonant tunnelling of the magnetization in molecular crystal of [(Mn _1-xCr_x)₁₂O₁₂ (CH₃COO) ₁₆(H₂O)₄] 2CH₃COOH4H₂O (x0,0.03,0.04,0.05)

Guang He, Lun Hua He, Jun Rong Zhang, Hui Bo Cao, Li Qin Yan, Fang Wei Wang, Qi Wei Yan

Research output: Contribution to journal › Article › peer-review

2 Scopus citations

Abstract

The quantum tunnelling of magnetization (QTM) in single crystals of the single molecule magnet (Mn_1-xCr_x)12-Ac (x0, 0.03, 0.04, 0.05) has been investigated. In comparison with its parent Mn12-Ac, a greater rate of magnetization relaxation and a lower effective potential-energy barrier have been observed in Cr-doping samples. This modulation of QTM due to the Cr-doping could be attributed to the small change of S_z due to the smaller spin of Cr itself and additional intrinsic but distributed transverse and longitudinal anisotropy raised by a subtle change of the local environment in the magnetic Mn12 core.

Original language	English
Article number	050
Pages (from-to)	1776-1779
Number of pages	4
Journal	Chinese Physics
Volume	16
Issue number	6
DOIs	https://doi.org/10.1088/1009-1963/16/6/050
State	Published - Jun 1 2007
Externally published	Yes

Keywords

Magnetization relaxation
Quantum tunnelling of magnetization
Single molecule magnet

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10.1088/1009-1963/16/6/050

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title = "Resonant tunnelling of the magnetization in molecular crystal of [(Mn 1-xCrx)12O12 (CH3COO) 16(H2O)4] 2CH3COOH4H2O (x0,0.03,0.04,0.05)",

abstract = "The quantum tunnelling of magnetization (QTM) in single crystals of the single molecule magnet (Mn1-xCrx)12-Ac (x0, 0.03, 0.04, 0.05) has been investigated. In comparison with its parent Mn12-Ac, a greater rate of magnetization relaxation and a lower effective potential-energy barrier have been observed in Cr-doping samples. This modulation of QTM due to the Cr-doping could be attributed to the small change of Sz due to the smaller spin of Cr itself and additional intrinsic but distributed transverse and longitudinal anisotropy raised by a subtle change of the local environment in the magnetic Mn12 core.",

keywords = "Magnetization relaxation, Quantum tunnelling of magnetization, Single molecule magnet",

author = "Guang He and He, {Lun Hua} and Zhang, {Jun Rong} and Cao, {Hui Bo} and Yan, {Li Qin} and Wang, {Fang Wei} and Yan, {Qi Wei}",

year = "2007",

month = jun,

day = "1",

doi = "10.1088/1009-1963/16/6/050",

language = "English",

volume = "16",

pages = "1776--1779",

journal = "Chinese Physics",

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TY - JOUR

T1 - Resonant tunnelling of the magnetization in molecular crystal of [(Mn 1-xCrx)12O12 (CH3COO) 16(H2O)4] 2CH3COOH4H2O (x0,0.03,0.04,0.05)

AU - He, Guang

AU - He, Lun Hua

AU - Zhang, Jun Rong

AU - Cao, Hui Bo

AU - Yan, Li Qin

AU - Wang, Fang Wei

AU - Yan, Qi Wei

PY - 2007/6/1

Y1 - 2007/6/1

N2 - The quantum tunnelling of magnetization (QTM) in single crystals of the single molecule magnet (Mn1-xCrx)12-Ac (x0, 0.03, 0.04, 0.05) has been investigated. In comparison with its parent Mn12-Ac, a greater rate of magnetization relaxation and a lower effective potential-energy barrier have been observed in Cr-doping samples. This modulation of QTM due to the Cr-doping could be attributed to the small change of Sz due to the smaller spin of Cr itself and additional intrinsic but distributed transverse and longitudinal anisotropy raised by a subtle change of the local environment in the magnetic Mn12 core.

AB - The quantum tunnelling of magnetization (QTM) in single crystals of the single molecule magnet (Mn1-xCrx)12-Ac (x0, 0.03, 0.04, 0.05) has been investigated. In comparison with its parent Mn12-Ac, a greater rate of magnetization relaxation and a lower effective potential-energy barrier have been observed in Cr-doping samples. This modulation of QTM due to the Cr-doping could be attributed to the small change of Sz due to the smaller spin of Cr itself and additional intrinsic but distributed transverse and longitudinal anisotropy raised by a subtle change of the local environment in the magnetic Mn12 core.

KW - Magnetization relaxation

KW - Quantum tunnelling of magnetization

KW - Single molecule magnet

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U2 - 10.1088/1009-1963/16/6/050

DO - 10.1088/1009-1963/16/6/050

M3 - Article

AN - SCOPUS:34250026485

SN - 1009-1963

VL - 16

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EP - 1779

JO - Chinese Physics

JF - Chinese Physics

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M1 - 050

ER -

Resonant tunnelling of the magnetization in molecular crystal of [(Mn _1-xCr_x)₁₂O₁₂ (CH₃COO) ₁₆(H₂O)₄] 2CH₃COOH4H₂O (x0,0.03,0.04,0.05)

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Keywords

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