Quantum magnetism in molecular spin ladders probed with muon-spin spectroscopy
Quantum magnetism in molecular spin ladders probed with muon-spin spectroscopy
复制标题
用μ子自旋光谱探测分子自旋梯中的量子磁性
DOI:
10.1088/1367-2630/aae21a
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发表时间:
2018
影响因子:
3.3
通讯作者:
Ward, S
中科院分区:
文献类型:
--
作者:
Lancaster, T;Xiao, F;Huddart, B M;Williams, R C;Pratt, F L;Blundell, S J;Clark, S J;Scheuermann, R;Goko, T;Ward, S
We present the results of muon-spin spectroscopy (μ+ SR) measurements on the molecular spin ladder system (Hpip) 2 CuBr 4 (1− x) Cl 4x,[Hpip=(C 5 H 12 N)]. Using transverse field μ+ SR we are able to identify characteristic behaviour in each of the regions of the phase diagram of the x= 0 strong-rung spin ladder system (Hpip) 2 CuBr 4. Comparison of our results to those of the dimer-based molecular magnet Cu (pyz)(gly)(ClO 4) shows several common features. We locate the crossovers in partially disordered (Hpip) 2 CuBr 4 (1− x) Cl 4x (x= 0.05), where a region of behaviour intermediate between quantum disordered and Luttinger liquid-like is identified. Our interpretation of the results incorporates an analysis of the probable muon stopping states in (Hpip) 2 CuBr 4 based on density functional calculations and suggests how the muon plus its local distortion can lead to a local probe unit with good sensitivity to the magnetic state. Using longitudinal field μ+ SR we compare the dynamic response of the x= 1 strong-rung material (Hpip) 2 CuCl 4 to that of the strong-leg material (C 7 H 10 N) 2 CuBr 4 (known as DIMPY) and demonstrate that our results are in agreement with predictions based on interacting fermionic quasiparticle excitations in these materials.
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影响因子:
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作者:
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影响因子:
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DOI:
--
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2000
期刊:
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DOI:
--
发表时间:
2012
期刊:
影响因子:
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作者:
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通讯作者:
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DOI:
--
发表时间:
2013
期刊:
Journal of Physics: Condensed Matter
影响因子:
--
作者:
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通讯作者:
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