Inverse order-disorder transition of charge stripes

被引：4

作者：

Lee, Shu-Han ^{[1
]}

Lai, Yen-Chung ^{[1
]}

Du, Chao-Hung ^{[1
]}

Siegenfeld, Alexander F. ^{[2
]}

Kao, Ying-Jer ^{[3
,4
]}

Hatton, Peter D. ^{[5
]}

Prabhakaran, D. ^{[6
]}

Su, Yixi ^{[7
]}

Huang, Di-Jing ^{[8
]}

机构：

[1] Tamkang Univ, Dept Phys, New Taipei 25137, Taiwan

[2] MIT, Dept Phys, Cambridge, MA 02139 USA

[3] Natl Taiwan Univ, Adv Ctr Theoret Sci, Taipei 10607, Taiwan

[4] Natl Taiwan Univ, Dept Phys, Taipei 10607, Taiwan

[5] Univ Durham, Dept Phys, Durham DH1 3LE, England

[6] Univ Oxford, Dept Phys, Clarendon Lab, Oxford OX1 3PU, England

[7] Forschungszentrum Julich, JCNS, Outstn MLZ, D-85747 Garching, Germany

[8] Natl Synchrotron Radiat Res Ctr, Hsinchu 30076, Taiwan

来源：

PHYSICAL REVIEW B | 2015年 / 92卷 / 20期

基金：

英国工程与自然科学研究理事会;

关键词：

NEMATIC ORDER; FLUCTUATIONS; TEMPERATURES; PHASES; STATE;

D O I：

10.1103/PhysRevB.92.205114

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We report an unusual transition behavior of charge stripes in La1.67Sr0.33NiO4 using x-ray scattering. The segregated holes in La1.67Sr0.33NiO4 are observed to form anisotropic stripes in the a x b plane of the crystal space below the transition temperature T similar or equal to 238 K, and at the same time, display an unusual inverse order-disorder transition along the c axis. Using a phenomenological Landau theory, we show that this inverse transition is due to the interlayer coupling between the charge and spin orders. This discovery points to the importance of the interlayer correlations in the strongly correlated electrons system.

引用

页数：7

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