The polar magnet CaBaCo 4 O 7 is known to exhibit the largest magnetic-field-driven
electric polarization change (Δ P) associated with an antiferromagnetic-(AFM-) ferrimagnetic …

Giant magnetostriction in insulating magnetic materials is highly required for applications but
is rarely observed. Here we show that giant magnetostriction (> 1500 ppm) can be achieved …

We investigate phase transitions of a geometrically frustrated polar magnet CaBaCo 4 O 7,
which exhibits the largest magnetoelectric (ME) effect in multiferroic compounds reported so …

The rhombohedral distortion-driven occurrence of the spontaneous electric polarization at a
reasonably high temperature (T) and an exchange bias (EB) effect below the …

We present a study of the terahertz-frequency magnetoelectric effect in ferrimagnetic
pyroelectric CaBaCo 4 O 7 and its Ni-doped variants. The terahertz absorption spectrum of …

The magnetization, magnetostriction, and electric polarization of CaBaCo 4 O 7 single-
crystal samples were investigated under static and pulsed magnetic fields. Experimental …

We report ferroelectric ordering in Ni-substituted CaBaC o 4 O 7. Magnetization showed
ferrimagnetic transition at 60 K and an additional magnetic anomaly is found at∼ 82 K. The …

Swedenborgite Ca 0.5 Y 0.5 BaCo 4 O 7 (CYBCO) with geometrically frustrated kagome and
triangular lattices exhibits a disordered ground state in spite of strong antiferromagnetic …

Abstract CaBaCo 4 O 7 (CBCO) cobaltite shows a giant spin driven pyroelectric polarization
below its ferrimagnetic transition temperature at 64 K. In the present study, we have …

Using a microscopic model and Green's function theory, we investigated the magnetization,
specific heat, and polarization properties of CaBaCo4O7 (CBCO), scrutinizing their …