Dimensionality-driven spin-flop transition in quasi-one-dimensional PrBa2Cu4O8

Abstract

In the quasi-one-dimensional cuprate PrBa${}_2$Cu${}_4$O${}_8$, the Pr cations order antiferromagnetically at 17 K in zero field. Through a combination of magnetic susceptibility, torque magnetometry, specific heat and interchain transport measurements, the anisotropic temperature-magnetic field phase diagram associated with this ordering has been mapped out. A low-temperature spin-flop transition in the Pr sub-lattice is found to occur at the same magnetic field strength and orientation as a dimensional crossover in the ground state of the metallic CuO chains. This coincidence suggests that the spin reorientation is driven by a change in the anisotropic Rudermann-Kittel-Kasuya-Yosida (RKKY) interaction induced by a corresponding change in effective dimensionality of the conduction electrons.

8 pages, 8 figures

References in corpus (5)

• "Spin-Flop" Transition and Anisotropic Magnetoresistance in Pr_{1.3-x}La_{0.7}Ce_{x}CuO_{4}: Unexpectedly Strong Spin-Charge Coupling in Electron-Doped Cuprates
• Anomalous c-axis transport in layered metals
• Possible co-existence of local itinerancy and global localization in a quasi-one-dimensional conductor
• Fragile three-dimensionality in the quasi-one-dimensional cuprate PrBa_2Cu_4O_8
• Irradiation-induced confinement in a quasi-one-dimensional metal

Cited by in corpus (6)

• Spin-flop transition and magnetic phase diagram in CaCo${}_2$As${}_2$ revealed by torque measurements
• Electronic Nematicity Revealed by Torque Magnetometry in Iron Arsenide EuFe${}_2$(As${}_{1-x}$P${}_x$)${}_2$
• Kondo behavior and metamagnetic phase transition in a heavy fermion compound CeBi2
• Coupling between Antiferromagnetic and Spin Glass Orders in the Quasi-One-Dimensional Iron Telluride TaFe${}_{1+x}$Te${}_3$ ($x$=0.25)
• Enhanced superconducting properties of double-chain based superconductor Pr${}_2$Ba${}_4$Cu${}_7$O${}_{15-\delta }$ synthesized by citrate pyrolysis technique
• Thermodynamic Properties of Superconducting and Non-Superconducting Pr${}_2$Ba${}_4$Cu${}_7$O${}_{15-\delta }$ Compounds with Metallic Double Chains