论文标题
通过抑制电荷密度波的抑制YBA $ _2 $ CU $ _3 $ o $ $ _ {7-δ} $，通过抑制电荷密度波来恢复奇怪的金属阶段
Restored strange metal phase through suppression of charge density waves in underdoped YBa$_2$Cu$_3$O$_{7-δ}$
论文作者
论文摘要
最佳掺杂蛋白酶的正常状态由“奇怪的金属”阶段主导，该阶段显示了电阻率的线性温度（$ t $）依赖性持续到最低$ t $。对于不足的丘比特，这种行为损失在伪塔温度$ t^*$之下，其中电荷密度波（CDW）以及其他相互缠绕的本地订单表征了基态。在这里，我们表明，高度紧张，超薄和不足的YBA $ _2 $ _2 $ _3 $ _3 $ o $ _ {7-δ} $胶片的电阻均得到抑制。这一观察结果表明，CDW的发作与$ T $ - 线性电阻率在不足的库酸酯中的偏离之间存在着亲密的联系。我们的结果说明了使用应变控制来操纵量子材料的基态的潜力。
The normal state of optimally doped cuprates is dominated by the "strange metal" phase that shows a linear temperature ($T$) dependence of the resistivity persisting down to the lowest $T$. For underdoped cuprates this behavior is lost below the pseudogap temperature $T^*$, where Charge Density Waves (CDW) together with other intertwined local orders characterize the ground state. Here we show that the $T$-linear resistivity of highly strained, ultrathin and underdoped YBa$_2$Cu$_3$O$_{7-δ}$ films is restored when the CDW amplitude, detected by Resonant Inelastic X-ray scattering, is suppressed. This observation points towards an intimate connection between the onset of CDW and the departure from $T$-linear resistivity in underdoped cuprates. Our results illustrate the potential of using strain control to manipulate the ground state of quantum materials.
