...
首页> 外文期刊>Physical review letters >Complete d-Band Dispersion Relation in Sodium Cobaltates
【24h】

Complete d-Band Dispersion Relation in Sodium Cobaltates

机译:钴酸钠中完整的d波段色散关系

获取原文
获取原文并翻译 | 示例
           

摘要

We utilize fine-tuned polarization selection coupled with excitation-energy variation of photoelectron signal to image the complete d-band dispersion relation in sodium cobaltates. A hybridization gap anticrossing is observed along the Brillouin zone corner and the full quasiparticle band is found to emerge as a many-body entity lacking a pure orbital polarization. At low dopings, the quasiparticle bandwidth (Fermion scale, many-body E_F ~ 0.25 eV) is found to be smaller than most known oxide metals. The low-lying density of states is found to be in agreement with bulk-sensitive thermodynamic measurements for nonmagnetic dopings where the 2D Luttinger theorem is also observed to be satisfied.
机译:我们利用微调的偏振选择以及光电子信号的激发能变化来成像钴酸钠中完整的d波段色散关系。沿着布里渊区角观察到杂交间隙反交叉,并且发现完整的准粒子带作为缺乏纯轨道极化的多体实体出现。在低掺杂下,准粒子带宽(费米子尺度,多体E_F〜0.25 eV)被发现小于大多数已知的氧化物金属。发现低态密度与非磁性掺杂的体敏热力学测量结果一致,在非磁性掺杂中还观察到满足2D Luttinger定理。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号