175 citations · 636 across the 24 of their papers we have counts for
24 papers
Signatures of a magnetic superstructure phase induced by ultrahigh magnetic fields in a breathing pyrochlore antiferromagnet
M. Gen, A. Ikeda, K. Aoyama +11
The mutual coupling of spin and lattice degrees of freedom is ubiquitous in magnetic materials and potentially creates exotic magnetic states in response to the external magnetic f…
Signature of spin-triplet exciton condensations in LaCoO at ultrahigh magnetic fields up to 600 T
Akihiko Ikeda, Yasuhiro H. Matsuda, Keisuke Sato +5
Bose-Einstein condensation of electron-hole pairs, exciton condensation, has been effortfully investigated since predicted 60 years ago. Irrefutable evidence has still been lacking…
Magnetization Plateau Observed by Ultra-High Field Faraday Rotation in a Kagomé Antiferromagnet Herbertsmithite
Ryutaro Okuma, Daisuke Nakamura, Shojiro Takeyama
To capture the high-field magnetization process of herbertsmithite (ZnCu3(OH)6Cl2), Faraday rotation (FR) measurements were carried out on a single crystal in magnetic fields of up…
Magnetic-field-induced insulator-metal transition in W-doped VO2 at 500 T
Yasuhiro H. Matsuda, Daisuke Nakamura, Akihiko Ikeda +3
Metal-insulator (MI) transitions in correlated electron systems have long been a central and controversial issue in material science. Vanadium dioxide (VO2) exhibits a first-order…
A series of magnon crystals appearing under ultrahigh magnetic fields in a kagomé antiferromagnet
R. Okuma, D. Nakamura, T. Okubo +7
Search for a new quantum state of matter emerging in a crystal is one of recent trends in condensed matter physics. For magnetic materials, geometrical frustration and high magneti…
Magnetoelastic couplings in the deformed Kagomé quantum spin lattice of volborthite
Akihiko Ikeda, Shunsuke Furukawa, Oleg Janson +5
Microscopic spin interactions on a deformed Kagomé lattice of volborthite are investigated through magnetoelastic couplings. A negative longitudinal magnetostriction in the…