Standard

NMR in underdoped and overdoped YBa2Cu3O7-σ compounds : Fermi-liquid approach. / Aristov, D. N.; Yashenkin, A. G.

In: Physica C: Superconductivity and its Applications, Vol. 248, No. 1-2, 10.06.1995, p. 22-28.

Research output: Contribution to journal › Article › peer-review

Harvard

Aristov, DN & Yashenkin, AG 1995, 'NMR in underdoped and overdoped YBa2Cu3O7-σ compounds: Fermi-liquid approach', Physica C: Superconductivity and its Applications, vol. 248, no. 1-2, pp. 22-28. https://doi.org/10.1016/0921-4534(94)00216-9

APA

Aristov, D. N., & Yashenkin, A. G. (1995). NMR in underdoped and overdoped YBa2Cu3O7-σ compounds: Fermi-liquid approach. Physica C: Superconductivity and its Applications, 248(1-2), 22-28. https://doi.org/10.1016/0921-4534(94)00216-9

Vancouver

Aristov DN, Yashenkin AG. NMR in underdoped and overdoped YBa2Cu3O7-σ compounds: Fermi-liquid approach. Physica C: Superconductivity and its Applications. 1995 Jun 10;248(1-2):22-28. https://doi.org/10.1016/0921-4534(94)00216-9

Author

Aristov, D. N. ; Yashenkin, A. G. / NMR in underdoped and overdoped YBa2Cu3O7-σ compounds : Fermi-liquid approach. In: Physica C: Superconductivity and its Applications. 1995 ; Vol. 248, No. 1-2. pp. 22-28.

BibTeX

@article{089cf76eb79d41b7bbb597477465021c,
title = "NMR in underdoped and overdoped YBa2Cu3O7-σ compounds: Fermi-liquid approach",
abstract = "We examine the NMR experimental data for the normal state of YBa2Cu3O7-σ within the Fermi-liquid approach. We explain the temperaturer dependence of the knight shift as well as 17O (89Y) relaxation rate in {"}underdoped{"} (Tc = 60 K) compound as stemming from a strong variation of the density of states (DOS) near the Fermi level. We extract the small-energy DOS structure from the data on the Knight shift. The proposed origin of this structure is the van Hove singularity resulted from the extended saddle point in fermionic spectrum. Such spectrum allows us to account for the qualitatively different NMR data for underdoped and overdoped (Tc = 90 K) compounds by varying the value of chemical potential only. We argue that the AF fluctuations, present at copper sites, should be regarded as an almost independent source of relaxation and exist on the Fermi-liquid background.",
author = "Aristov, {D. N.} and Yashenkin, {A. G.}",
year = "1995",
month = jun,
day = "10",
doi = "10.1016/0921-4534(94)00216-9",
language = "English",
volume = "248",
pages = "22--28",
journal = "Physica C: Superconductivity and its Applications",
issn = "0921-4534",
publisher = "Elsevier",
number = "1-2",

}

RIS

TY - JOUR

T1 - NMR in underdoped and overdoped YBa2Cu3O7-σ compounds

T2 - Fermi-liquid approach

AU - Aristov, D. N.

AU - Yashenkin, A. G.

PY - 1995/6/10

Y1 - 1995/6/10

N2 - We examine the NMR experimental data for the normal state of YBa2Cu3O7-σ within the Fermi-liquid approach. We explain the temperaturer dependence of the knight shift as well as 17O (89Y) relaxation rate in "underdoped" (Tc = 60 K) compound as stemming from a strong variation of the density of states (DOS) near the Fermi level. We extract the small-energy DOS structure from the data on the Knight shift. The proposed origin of this structure is the van Hove singularity resulted from the extended saddle point in fermionic spectrum. Such spectrum allows us to account for the qualitatively different NMR data for underdoped and overdoped (Tc = 90 K) compounds by varying the value of chemical potential only. We argue that the AF fluctuations, present at copper sites, should be regarded as an almost independent source of relaxation and exist on the Fermi-liquid background.

AB - We examine the NMR experimental data for the normal state of YBa2Cu3O7-σ within the Fermi-liquid approach. We explain the temperaturer dependence of the knight shift as well as 17O (89Y) relaxation rate in "underdoped" (Tc = 60 K) compound as stemming from a strong variation of the density of states (DOS) near the Fermi level. We extract the small-energy DOS structure from the data on the Knight shift. The proposed origin of this structure is the van Hove singularity resulted from the extended saddle point in fermionic spectrum. Such spectrum allows us to account for the qualitatively different NMR data for underdoped and overdoped (Tc = 90 K) compounds by varying the value of chemical potential only. We argue that the AF fluctuations, present at copper sites, should be regarded as an almost independent source of relaxation and exist on the Fermi-liquid background.

UR - http://www.scopus.com/inward/record.url?scp=0029323810&partnerID=8YFLogxK

U2 - 10.1016/0921-4534(94)00216-9

DO - 10.1016/0921-4534(94)00216-9

M3 - Article

AN - SCOPUS:0029323810

VL - 248

SP - 22

EP - 28

JO - Physica C: Superconductivity and its Applications

JF - Physica C: Superconductivity and its Applications

SN - 0921-4534

IS - 1-2

ER -

ID: 36121279