Linear Dependence of Peak Width in χ(q,ω) vs Tc for YBa2Cu3O6+x Superconductors

A. V. Balatsky; P. Bourges

doi:10.1103/PhysRevLett.82.5337

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Linear Dependence of Peak Width in χ(q,ω) vs Tc for YBa2Cu3O6+x Superconductors

A. V. Balatsky, P. Bourges

DOI 10.1103/PhysRevLett.82.5337 · Physical Review Letters

T1

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Abstract

It is shown that the momentum space width of the peak in the spin susceptibility, Imχ(q,ω), is linearly proportional to the superconducting Tc: Tc=ħv*Δq with ħv*≃35meVÅ. This relation is similar to the linear relation between incommensurate peak splitting and Tc in LaSrCuO superconductors, as first proposed by Yamada et al. [Phys. Rev. B 57, 6165 (1998)]. The velocity ħv* is smaller than Fermi velocity or the spin-wave velocity of the parent compound and remains the same for a wide doping range. This result points towards strong similarities in magnetic state of YBa2Cu3O6+x and LaSrCuO.

Source-reported materials — not catalogue approval

Formula	Reported Tc (K)	Pressure (GPa)	Type
YBa2Cu3O6+x Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	93	Pressure not reported	onset
YBa2Cu3O6.4 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	25	Pressure not reported	unknown
YBa2Cu3O6.45 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	45	Pressure not reported	unknown
YBa2Cu3O6.5 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	52	Pressure not reported	unknown
YBa2Cu3O6.6 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	63	Pressure not reported	unknown
YBa2Cu3O6.69 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	59	Pressure not reported	unknown
YBa2Cu3O6.7 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	67	Pressure not reported	unknown
YBa2Cu3O6.8 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	82	Pressure not reported	unknown
YBa2Cu3O6.83 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	85	Pressure not reported	unknown
YBa2Cu3O6.92 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	91	Pressure not reported	unknown
YBa2Cu3O6.97 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	92.4	Pressure not reported	unknown