MICROSCOPIC PHASE SEPARATION AND TWO TYPE OF QUASIPARTICLES IN LIGHTLY DOPED La_(2-x)Sr_xCuO_4 OBSERVED BY ELECTRON PARAMAGNETIC RESONANCE

机译：电子共振观察的轻掺杂La_（2-x）Sr_xCuO_4的微观相分离和两种拟微粒

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In the low doping range of x from 0.01 to 0.06 in La_(2-x)Sr_xCuO_4, we observed two electron paramagnetic resonance (EPR) signals: a narrow and a broad one. The narrow line is ascribed to metallic regions in the material, and its intensity increases exponentially upon cooling below ～ 150 K. The activation energy deduced Δ = 460(50) K is nearly the same as that found in the doped superconducting regime by Raman and neutron scattering. Obtained results provide evidence of the microscopic phase separation and two type of quasiparticles in lightly doped La_(2-x)Sr_xCuO_4.

机译：在La_（2-x）Sr_xCuO_4中x的从0.01到0.06的低掺杂范围内，我们观察到两个电子顺磁共振（EPR）信号：一个窄信号和一个宽信号。窄线归因于材料中的金属区域，冷却至〜150 K以下时其强度呈指数增加。推导的Δ= 460（50）K的活化能与拉曼和拉曼在掺杂超导体系中发现的几乎相同。中子散射。所得结果提供了轻掺杂La_（2-x）Sr_xCuO_4中微观相分离和两种准粒子的证据。

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《NATO Advanced Study Research Workshop on Symmetry and Heterogeneity in High Temperature Superconductors; 20031004-10; Erice(IT)》|2003年|P.105-116|共12页
会议地点 Erice(IT)
作者
A. Shengelaya; M. Bruun; B. I. Kochelaev; A. Safina; K. Conder; K. A. Mueller;
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作者单位

Physik-Institut der Universitaet Zuerich, Winterthurerstrasse 190, CH-8057, Switzerland;

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原文格式 PDF
正文语种 eng
中图分类 O511.2;
关键词
superconductivity phase diagrams; La-based cuprates; nonconventional mechanisms (spin fluctuations, polarons and bipolarons, resonating valence bond model, anyon mechanism, marginal fermi liquid, luttinger liquid, etc.); electron paramagnetic resonance a;

机译：超导相图;基于La的铜酸盐;非常规机理（自旋涨落，极化子和双极化子，共振价键模型，任意子机理，边缘费米液体，卢汀液体等）;电子顺磁共振a;

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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. Nuclear magnetic resonance studies of phase separation in two systems: Lanthanum 1-x Strontium x Cobalt Trioxide and Lanthanum 2-x Strontium x Copper Tetraoxide [D] . Smith, Robert Steven 2010

机译：两种系统相分离的核磁共振研究：镧1-x锶x三氧化钴和镧2-x锶x四氧化铜
6. Dynamics and ordering in a spin-labeled oligonucleotide observed by 220 GHz electron paramagnetic resonance. [O] . D E Budil, S V Kolaczkowski, A Perry, 2000

机译：通过220 GHz电子顺磁共振观察到的自旋标记寡核苷酸的动力学和有序性。
7. A metallic phase in lightly doped La$_{2-x}$Sr$_{x}$CuO$_{4}$ observed by electron paramagnetic resonance [O] . Shengelaya, A., Bruun, M., Kochelaev, B. I., 2003

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

MICROSCOPIC PHASE SEPARATION AND TWO TYPE OF QUASIPARTICLES IN LIGHTLY DOPED La_(2-x)Sr_xCuO_4 OBSERVED BY ELECTRON PARAMAGNETIC RESONANCE

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