Electronically competing phases and their magnetic field dependence in electron-doped nonsuperconducting and superconducting Pr0.88LaCe0.12CuO4 +/-delta
文献类型：期刊论文
| 作者 | Kang, HJ ; Dai, P ; Mook, HA ; Argyriou, DN ; Sikolenko, V ; Lynn, JW ; Kurita, Y ; Komiya, S ; Ando, Y |
| 刊名 | PHYSICAL REVIEW B
 |
| 出版日期 | 2005 |
| 卷号 | 71期号:21 |
| 关键词 | HIGH-TEMPERATURE SUPERCONDUCTOR CONDENSED-MATTER PHYSICS T-C SUPERCONDUCTOR NEUTRON-SCATTERING ANTIFERROMAGNETIC ORDER SPURIOUS MAGNETISM SINGLE-CRYSTAL SPIN STATE PR2CUO4 |
| ISSN号 | 1098-0121 |
| 通讯作者 | Kang, HJ (reprint author), Univ Tennessee, Dept Phys & Astron, Knoxville, TN 37996 USA. |
| 中文摘要 | We present comprehensive neutron scattering studies of nonsuperconducting and superconducting electron-doped Pr0.88LaCe0.12CuO4 +/-delta (PLCCO). At zero field, the transition from antiferromagnetic (AF) as-grown PLCCO to superconductivity without static antiferromagnetism can be achieved by annealing the sample in pure Ar at different temperatures, which also induces an epitaxial (Pr, La, Ce)(2)O-3 phase as an impurity. When the superconductivity first appears in PLCCO, a quasi-two-dimensional (2D) spin-density-wave (SDW) order is also induced, and both coexist with the residual three-dimensional (3D) AF state. A magnetic field applied along the [(1) over bar, 1, 0] direction parallel to the CuO2 plane induces a "spin-flop" transition, where the noncollinear AF spin structure of PLCCO is transformed into a collinear one. The spin-flop transition is continuous in semiconducting PLCCO, but gradually becomes sharp with increasing doping and the appearance of superconductivity. A c-axis aligned magnetic field that suppresses the superconductivity also enhances the quasi-2D SDW order at (0.5, 0.5, 0) for underdoped PLCCO. However, there is no effect on the 3D AF order in either superconducting or nonsuperconducting samples. Since the same field along the [(1) over bar, 1, 0] direction in the CuO2 plane has no (or little) effect on the superconductivity, (0.5, 0.5, 0) and (Pr, La, Ce)(2)O-3 impurity positions, we conclude that the c-axis field-induced effect is intrinsic to PLCCO and arises from the suppression of superconductivity. |
| 收录类别 | SCI |
| 语种 | 英语 |
| 公开日期 | 2014-02-20 |
| 源URL | [http://ir.iphy.ac.cn/handle/311004/57869]  |
| 专题 | 物理研究所_所内人员在其他单位发表论文题录信息_所内人员在其他单位发表论文题录信息_期刊论文 |
| 推荐引用方式 GB/T 7714 | Kang, HJ,Dai, P,Mook, HA,et al. Electronically competing phases and their magnetic field dependence in electron-doped nonsuperconducting and superconducting Pr0.88LaCe0.12CuO4 +/-delta[J]. PHYSICAL REVIEW B,2005,71(21). |
| APA | Kang, HJ.,Dai, P.,Mook, HA.,Argyriou, DN.,Sikolenko, V.,...&Ando, Y.(2005).Electronically competing phases and their magnetic field dependence in electron-doped nonsuperconducting and superconducting Pr0.88LaCe0.12CuO4 +/-delta.PHYSICAL REVIEW B,71(21). |
| MLA | Kang, HJ,et al."Electronically competing phases and their magnetic field dependence in electron-doped nonsuperconducting and superconducting Pr0.88LaCe0.12CuO4 +/-delta".PHYSICAL REVIEW B 71.21(2005). |
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来源：物理研究所
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