论文标题
通过单轴局部调整来控制Kagome晶格上的沮丧磁性
Controlling frustrated magnetism on the kagome lattice by uniaxial-strain tuning
论文作者
论文摘要
可以预测，在沮丧的晶格上强烈相互作用的旋转可能导致量子无序的基态，甚至形成具有异国情调的低能激发的量子自旋液体。但是，彻底调整了挫败感的力量，将其效果与疾病和其他因素分开，这是待定的。在这里，我们通过施加$ $ $ $ situ $的单轴压力，以控制的方式打破了Kagome-lattice化合物的对称性。 The transition temperature of $\rm Y_3Cu_9(OH)_{18}OCl_8$ is linearly enhanced with strain, $ΔT_{\rm N}/T_{\rm N} \approx 10\%$ upon in-plane compression of order $1\%$, providing clear evidence for a release of frustration and its pivotal role for magnetic order.我们综合的$^1 $ h NMR结果表明，在未经培训的条件下，$ \ oferrightArrow {q} =（1/3 \ times 1/3）$状态，并进一步揭示了在这个非常沮丧的系统中的不完整的反铁磁过渡，并且有波动的时刻。
It is predicted that strongly interacting spins on a frustrated lattice may lead to a quantum disordered ground state or even form a quantum spin liquid with exotic low-energy excitations. However, a thorough tuning of the frustration strength, separating its effects from those of disorder and other factors, is pending. Here we break the symmetry of a kagome-lattice compound in a controlled manner by applying $in$ $situ$ uniaxial stress. The transition temperature of $\rm Y_3Cu_9(OH)_{18}OCl_8$ is linearly enhanced with strain, $ΔT_{\rm N}/T_{\rm N} \approx 10\%$ upon in-plane compression of order $1\%$, providing clear evidence for a release of frustration and its pivotal role for magnetic order. Our comprehensive $^1$H NMR results suggest a $\overrightarrow{Q}=(1/3\times 1/3)$ state under unstrained conditions and further reveal an incomplete antiferromagnetic transition with fluctuating moments in this strongly frustrated system.
