Partial spin freezing in the quasi-two-dimensional La2(Cu,Li)O4

Abstract

In conventional spin glasses, the magnetic interaction is not strongly anisotropic and the entire spin system freezes at low temperature. In La2(Cu,Li)O4, for which the in-plane exchange interaction dominates the interplane one, only a fraction of spins with antiferromagnetic correlations extending to neighboring planes become spin-glass. The remaining spins with only in-plane antiferromagnetic correlations remain spin-liquid at low temperature. Such a novel partial spin freezing out of a spin-liquid observed in this cold neutron scattering study is likely due to a delicate balance between disorder and quantum fluctuations in the quasi-two dimensional S=1/2 Heisenberg system.

4 pages, 4 figures

References in corpus (12)

• Static magnetic correlations near the insulating-superconducting phase boundary in La${}_{2-x}$Sr${}_x$CuO${}_4$
• Commensurate spin dynamics in the superconducting state of an electron-doped cuprate superconductor
• Low-energy fixed points of random Heisenberg models
• Electronically competing phases and their magnetic field dependence in electron-doped nonsuperconducting and superconducting Pr0.88LaCe0.12CuO4
• Spin-glass phase of cuprates
• Exposing the spin glass ground state of the non-superconducting La${}_{2-x}$Sr${}_x$Cu${}_{1-y}$Zn${}_y$O${}_4$ high-$T_c$ oxide
• Topological Gauge Structure and Phase Diagram for Weakly Doped Antiferromagnets
• Novel dynamic scaling regime in hole-doped La2CuO4
• Magnetic Properties and Phase Diagram of Li-doped La(2)CuO(4): Common Magnetic Response of Hole-doped CuO2 Planes
• Heterogeneous slow dynamics in a two dimensional doped classical antiferromagnet
• In-Plane Conductivity Anisotropy in Underdoped Cuprates in the Spin-Charge Gauge Approach
• Zero-temperature criticality in the two-dimensional gauge glass model

Cited by in corpus (9)

• Spin dynamics near the critical doping in weakly-superconducting underdoped YBa2Cu3O6.35 (Tc=18K)
• Stripeless incommensurate magnetism in a doped strongly correlated oxide
• Correlations and dynamics of spins in an XY-like spin-glass (Ni0.4Mn0.6)TiO3 single crystal system
• Magnetic order in lightly doped cuprates: Coherent vs. incoherent hole quasiparticles and non-magnetic impurities
• Density matrix renormalization on random graphs and the quantum spin-glass transition
• The Fincher-Burke spin excitations and omega/T scaling in the insulating 5% Sr-doped La2CuO4
• The "Bohr" Model for the High Tc Superconductivity
• Separation of magnetic and superconducting behaviour in YBCO6.33 (Tc=8.4 K)
• AC Hopping Magnetotransport Across the Spin Flop Transition in Lightly Doped La_2CuO_4