We report the results of magnetization and specific heat measurements on Ba 3 CoSb 2 O 9,
in which the magnetic Co 2+ ion has a fictitious spin 1/2, and provide evidence that a spin …

Using magnetic, thermal, and neutron measurements on single-crystal samples, we show
that Ba 3 CoSb 2 O 9 is a spin-1/2 triangular-lattice antiferromagnet with the c axis as the …

We report the magnetic and electric properties of Ba 3 NiNb 2 O 9, which is a quasi-two-
dimensional spin-one triangular-lattice antiferromagnet with trigonal structure. At low T and …

The temperature evolution of electron spin resonance is studied upon cooling the crystal
samples of Cs 2 CuCl 4 through the Néel point 0.62 K. A coexistence of the high-frequency …

With the use of density function calculations we show that the actual crystal structure of Cs 2
CuCl 2 Br 2 should contain elongated in the ab-plane CuCl 4 Br 2 octahedra, in contrast to …

Starting with Wannier's 1) and Anderson's 2) seminal papers the triangular-lattice
antiferromagnet has attracted a lot of attention. One spectacular feature of this model system …

The magnetic properties of Cs 2 Cu 3 CeF 12 were investigated through magnetization and
specific heat measurements. Cs 2 Cu 3 CeF 12 is composed of a buckled kagome lattice of …

Functional ferroelectric and magnetic materials have played an important role of modern
technology in the sensor or storage device industries. Ferroelectricity and ferromagnetism …

[en] Determining the ground-state properties of frustrated quantum magnetic models has
been one of the primary pursuits in modern condensed matter physics. The triangular spin …

A major focus of modern condensed matter physics is the study of collective, many-body
behavior in strongly-correlated systems. In these systems, the interplay of thermal and …