Dielectric Response of Quantum Critical Ferroelectric as a Function of Pressure.
Dielectric Response of Quantum Critical Ferroelectric as a Function of Pressure.
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DOI：
10.1038/s41598-018-33320-2
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发表时间：
2018-10-08
影响因子：
4.6
通讯作者：
Saxena SS
中科院分区：
文献类型：
--
作者：
Coak MJ;Haines CRS;Liu C;Jarvis DM;Littlewood PB;Saxena SS
在这项工作中，我们报告的第一次测量下的应用静水压力高达20千巴和温度下降到200 mK的单晶SrTiO 3的介电损耗，使我们能够评论新的基本材料性能的演变和它们的关系与最近发现的量子临界现象在这种材料。众所周知的18 K峰或肩在施加压力后不再被观察到，即使在随后将其移除后也是如此，这表明它与在110 K ε-四氢呋喃转变时形成的双壁有关。所有熟悉的峰的家庭都被认为是在温度与压力线性增加和9.4 K峰的高度被大大抑制，即使是最小的压力。这个峰值讨论的上下文中的一个假设的铁电量子临界点SrTiO 3和其大小的行为链接到最近建立的相图上的这个点的位置。
In this work we report for the first time measurements of the dielectric loss of single-crystal SrTiO3 under the application of hydrostatic pressure up to 20 kbar and temperatures down to 200 mK which allow us to comment on the evolution of new fundamental material properties and their relationship with the recently discovered quantum critical phenomena in this material. The well known 18 K peak or shoulder was no longer observed after pressure was applied, even after subsequently removing it, suggesting it is associated with the twin walls formed at the 110 K cubic-tetragonal transition. The family of familiar peaks were all seen to increase in temperature linearly with pressure and the height of the 9.4 K peak was drastically suppressed by even the smallest pressures. This peak is discussed in the context of a postulated ferroelectric quantum critical point in SrTiO3 and the behaviour of its size linked to the position of this point on the recently established phase diagram.
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影响因子：
1.7
作者：
Fujishita, Hideshi;Kitazawa, Shou;Yamaguchi, Toshihisa
通讯作者：
Yamaguchi, Toshihisa
影响因子：
4.6
作者：
Fontcuberta J;Skumryev V;Laukhin V;Granados X;Salje EK
通讯作者：
Salje EK
影响因子：
3.7
作者：
Ang, C;Yu, Z;Loidl, A
通讯作者：
Loidl, A
DOI：
10.1002/pssa.2210230222
发表时间：
1974-01-01
影响因子：
2
作者：
FRENZEL, C;HEGENBARTH, E
通讯作者：
HEGENBARTH, E
DOI：
10.1007/bf01313549
发表时间：
1991-01-01
期刊：
ZEITSCHRIFT FUR PHYSIK B-CONDENSED MATTER
影响因子：
--
作者：
MULLER, KA;BERLINGER, W;TOSATTI, E
通讯作者：
TOSATTI, E