4 papers
Field-Induced Local Excitations Causing Zero-Magnetization Plateaus in Antiferromagnets of Antiferromagnetic Spin Dimers Under Magnetic Field
Myung-Hwan Whangbo, Hyun-Joo Koo, Nikita V. Astakhov +2
Certain antiferromagnets composed of antiferromagnetic spin dimers exhibit a zero-magnetization plateau despite that the single-ion anisotropy of their magnetic ions is negligible.…
Reduction of Ordered Spin Moments in Antiferromagnets of S = 5/2 Ions (Fe3+, Mn2+) Driven by Local Magnetic Excitation
Myung-Hwan Whangbo, Reinhard K. Kremer, Hyun-Joo Koo
For antiferromagnets composed of spin five-half ions, the moments of these ions in the ordered antiferromagnetic state can be significantly smaller than 5 BM (i.e., 1.56 - 4.48 BM)…
Le Chatelier principle and field-induced change in magnetic entropy leading to spin lattice partitioning and magnetization plateau
Myung-Hwan Whangbo, Hyun-Joo Koo, Olga S. Volkova
For a certain antiferromagnet, the magnetization does not increase gradually with increasing magnetic field but exhibits field region(s) typically at an integer fraction of its sat…
Magnetization Plateaus by the Field-Induced Partitioning of Spin Lattices
Myung-Hwan Whangbo, Hyun-Joo Koo, Reinhard K. Kremer +1
To search for a conceptual picture describing the magnetization plateau phenomenon, we surveyed the crystal structures and the spin lattices of those magnets exhibiting plateaus in…