E. E. Kaul

Spin fluctuations with two-dimensional XY behavior in a frustrated S=1/2 square-lattice ferromagnet

The spin dynamics of the layered square-lattice vanadate Pb

Single-crystal 31P NMR studies of the frustrated square-lattice compound Pb2(VO)(PO4)2

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Strong frustration due to competing ferromagnetic and antiferromagnetic interactions: Magnetic properties of M(VO)2(PO4)2 (M = Ca and Sr)

VO(PO

The new lead vanadylphosphate Pb2VO(PO4)2.

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Field Dependence of XY-Behavior in Frustrated S = 1/2 Square Lattices

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Synthesis, Structure, and Properties of New Perovskite PbVO3

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Evidence for a frustrated square lattice with ferromagnetic nearest-neighbor interaction in the new compound Pb2VO(PO4)2

is investigated by electron spin resonance (ESR) at various magnetic fields and at temperatures above magnetic ordering. The linewidth divergence towards low temperatures seems to agree with isotropic Heisenberg-type spin exchange suggesting that the spin relaxation in this quasi-two-dimensional compound is governed by low-dimensional quantum fluctuations. However, a weak easy-plane anisotropy of the

New lead vanadium phosphate with langbeinite-type structure: Pb1.5V2(PO4)3

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Crystal structure and properties of the new vanadyl(IV)phosphates Na2MVO(PO4)2, M=Ca and Sr

factor points to the presence of a planar XY type of exchange. Indeed, we found that the linewidth divergence is described best by XY-like spin fluctuations which requires a single parameter only. Therefore, ESR-probed spin dynamics could establish Pb

Crystal Structure, Polymorphism, and Properties of the New Vanadyl Phosphate Na4VO(PO4)2

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