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A metallic phase in lightly doped La$_{2-x}$Sr$_{x}$CuO$_{4}$ observed by electron paramagnetic resonance

机译：轻微掺杂的金属相La $ _ {2-x} $ sr $ _ {x} $ CuO $ _ {4} $观察到通过电子顺磁共振

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In the low doping range of $x$ from 0.01 to 0.06 inLa$_{2-x}$Sr$_{x}$CuO$_{4}$, a narrow electron paramagnetic resonance (EPR)line has been investigated. This line is distinct from the known broad line,both due to probing Mn$^{2+}$ ions. The narrow line is ascribed to metallicregions in the material, and its intensity increases exponentially upon coolingbelow $\sim$ 150 K. The activation energy deduced $\Delta$ = 460(50) K isnearly the same as that found in the doped superconducting regime by Raman andneutron scattering. The intensity of the narrow EPR line follows the sametemperature dependence as the resistivity anisotropy in lightly dopedLa$_{2-x}$Sr$_{x}$CuO$_{4}$ single crystals.

机译：在La $ _ {2-x} $ Sr $ _ {x} $ CuO $ _ {4} $的$ x $的低掺杂范围中，从0.01到0.06，已经研究了窄电子顺磁共振（EPR）线。这条线与已知的宽线不同，都是由于探测Mn $ ^ {2 +} $离子。窄线归因于材料中的金属区域，其强度在冷却到$ \ sim $ 150 K以下时呈指数增长。推导的$ \ Delta $ = 460（50）K的活化能与掺杂超导体系中的激发能几乎相同。通过拉曼和中子散射。窄EPR线的强度遵循与轻掺杂La $ _ {2-x} $ Sr $ _ {x} $ CuO $ _ {4} $单晶的电阻率各向异性相同的温度依赖性。

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Shengelaya, A.; Bruun, M.; Kochelaev, B. I.; Safina, A.; Conder, K.; Muller, K. A.;
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年度 2003
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专利

1. Metallic Phase in Lightly Doped La_(2-x)Sr_xCuO_4 Observed by Electron Paramagnetic Resonance [J] . A. Shengelaya, M. Bruun, B. I. Kochelaev, Physical review letters . 2004,第1期

机译：电子顺磁共振观察轻掺杂La_（2-x）Sr_xCuO_4中的金属相
2. Novel Phase Separation and Spin Dynamics of Lightly Doped La_(2-x)Sr_2CuO_4 Probed by La-Nuclear Quadrupole Resonance [J] . K. Ishida, H. Aya, Y Tokunaga, Physical review letters . 2004,第25Pt1期

机译：La-核四极共振探测轻掺杂La_（2-x）Sr_2CuO_4的新型相分离和自旋动力学
3. Magnetic Dispersion Of The Diagonal Incommensurate Phase In Lightly Doped La_(2-x)sr_xcuo_4 [J] . M. Matsuda, M. Fujita, S. Wakimoto, Physical review letters . 2008,第19期

机译：轻掺杂La_（2-x）sr_xcuo_4中对角不相称相的磁扩散
4. MICROSCOPIC PHASE SEPARATION AND TWO TYPE OF QUASIPARTICLES IN LIGHTLY DOPED La_(2-x)Sr_xCuO_4 OBSERVED BY ELECTRON PARAMAGNETIC RESONANCE [C] . A. Shengelaya, M. Bruun, B. I. Kochelaev, NATO Advanced Study Research Workshop on Symmetry and Heterogeneity in High Temperature Superconductors . 2006

机译：通过电子顺磁共振观察到的微观相分离和两种类型的Quasiparticle，通过电子顺磁共振观察到的轻掺杂La_（2-x）Sr_xcuo_4
5. Investigation of defect energy levels in semi -insulating 4H-SiC using electron paramagnetic resonance and photo-electron paramagnetic resonance [D] . Wang, Haiyan 2006

机译：利用电子顺磁共振和光电子顺磁共振研究半绝缘4H-SiC中的缺陷能级
6. Spin-label studies of the lipid and protein components of erythrocyte membranes. A comparison of electron paramagnetic resonance and saturation transfer electron paramagnetic resonance methods. [O] . L W Fung 1981

机译：自旋标记研究红细胞膜的脂质和蛋白质成分。电子顺磁共振和饱和转移电子顺磁共振方法的比较。
7. Anisotropic Magnetoresistance in Lightly Doped La_{2-x}Sr_{x}CuO_{4}: Impact of Anti-Phase Domain Boundaries on the Electron Transport [O] . Ando, Yoichi, Lavrov, A. N., Komiya, Seiki 2003

机译：轻掺杂La_ {2-x} sr_ {x} CuO_ {4}中的各向异性磁电阻：反相域边界对电子输运的影响
8. Phase separation and doped-hole segregation in La 2CuO(4+ delta) and La(2-x)Sr(x)CuO( 4+ delta) [R] . Johnston, D. C., Bayless, W. R., Borsa, F. 1994

机译：La 2CuO（4+ delta）和La（2-x）sr（x）CuO（4+ delta）中的相分离和掺杂空穴偏析

A metallic phase in lightly doped La$_{2-x}$Sr$_{x}$CuO$_{4}$ observed by electron paramagnetic resonance

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