期刊
PHYSICAL REVIEW B
卷 87, 期 3, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevB.87.035138
关键词
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资金
- Italian Institute of Technology Seed Project NEWDFESCM
- Deutsche Forschungsgemeinschaft
- Sapienza University [C26A115HTN]
We study a model for low-doped cuprates where holes aggregate into oriented stripe segments which have a magnetic vortex and antivortex at the extremes. We argue that due to the interaction between segments a ferronematic state with macroscopic polarization is stabilized. This state can be characterized as a charge nematic which, due to the net polarization, breaks inversion symmetry and also exhibits an incommensurate spin modulation. Our calculation can reproduce the doping-dependent spin structure factor of lanthanum cuprates in excellent agreement with experiment and allows to rationalize experiments in which the incommensurability has an order-parameter-like temperature dependence. DOI: 10.1103/PhysRevB.87.035138
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