arxiv: cond-mat/9910041 · v2 · submitted 1999-10-04 · ❄️ cond-mat.supr-con · cond-mat.str-el

Spin Susceptibility in Underdoped bf YBa₂Cu₃O_{6+x}

H.F. Fong , P. Bourges , Y. Sidis , L.P. Regnault , J. Bossy , A. Ivanov , D.L. Milius , I.A. Aksay

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B. Keimer

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classification ❄️ cond-mat.supr-con cond-mat.str-el

keywords ybcospintemperaturehighsusceptibilityunderdopedattemptscomprehensive

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We report a comprehensive polarized and unpolarized neutron scattering study of the evolution of the dynamical spin susceptibility with temperature and doping in three underdoped single crystals of the \YBCO{6+x} high temperature superconductor: \YBCO{6.5} (Tc = 52 K), \YBCO{6.7} (Tc = 67 K), and \YBCO{6.85} (T_c = 87 K). Theoretical implications of these data are discussed, and a critique of recent attempts to relate the spin excitations to the thermodynamics of high temperature superconductors is given.

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Spin Susceptibility in Underdoped bf YBa₂Cu₃O_{6+x}

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