Probing magnetic order and disorder in the one-dimensional molecular spin chains CuF2(pyz) and [Ln(hfac)3(boaDTDA)]n (Ln = Sm, La) using implanted muons
Probing magnetic order and disorder in the one-dimensional molecular spin chains CuF2(pyz) and [Ln(hfac)3(boaDTDA)]n (Ln = Sm, La) using implanted muons
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使用植入 μ 子探测一维分子自旋链 CuF2(pyz) 和 [Ln(hfac)3(boaDTDA)]n (Ln = Sm, La) 中的磁序和无序
DOI：
10.1088/1361-648x/ab2cb6
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发表时间：
2019
期刊：
影响因子：
--
通讯作者：
Kathryn Preuss
中科院分区：
文献类型：
--
作者：
Tom Lancaster;B. Huddart;Robert Williams;Fan Xiao;K. J. A. Franke;Peter J. Baker;F. Pratt;S. Blundell;J. A. Schlueter;Michelle Mills;Adam Maahs;Kathryn Preuss
给出了反铁磁自旋链和铁磁自旋链的介子-自旋弛豫(SR)测量结果。在反铁磁性CuF2(PYZ)中，我们确定了在K处发生的向长程磁序的转变，这使得我们能够估计与AS的链内交换以及链间与链内交换耦合的比率。铁磁链[Sm(HFAc)3(BoaDTDA)]n在K处经历了有序化转变，这是通过Muon(微秒)时间尺度上的动态涨落的广泛冻结和暗示而看到的。在这个时间尺度上，有序的径向力矩继续在0.3K以下波动，而Sm力矩保持无序。相反，[La(HfAc)3(BoaDTDA)]n中的自由基自旋在T = 0.1K以下仍保持磁性无序。
We present the results of muon-spin relaxation (SR) measurements on antiferromagnetic and ferromagnetic spin chains. In antiferromagnetic CuF2(pyz) we identify a transition to long range magnetic order taking place at K, allowing us to estimate a ratio with the intrachain exchange of and the ratio of interchain to intrachain exchange coupling as . The ferromagnetic chain [Sm(hfac)3(boaDTDA)]n undergoes an ordering transition at K, seen via a broad freezing of dynamic fluctuations on the muon (microsecond) timescale and implying . The ordered radical moment continues to fluctuate on this timescale down to 0.3 K, while the Sm moments remain disordered. In contrast, the radical spins in [La(hfac)3(boaDTDA)]n remain magnetically disordered down to T = 0.1 K suggesting .
影响因子：
4.9
作者：
S. Lapidus;J. Manson;Junjie Liu;Matthew J S Smith;P. Goddard;J. Bendix;C. Topping;J. Singleton;C. Dunmars;J. Mitchell;J. Schlueter
通讯作者：
S. Lapidus;J. Manson;Junjie Liu;Matthew J S Smith;P. Goddard;J. Bendix;C. Topping;J. Singleton;C. Dunmars;J. Mitchell;J. Schlueter