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6 papers · 2 filters
Instabilities in monoaxial chiral magnets under a tilted magnetic field
Yusuke Masaki
We thoroughly study the zero temperature properties of monoaxial chiral spin systems under a tilted magnetic field. The magnetic phase diagram includes two kinds of continuous phas…
Stability and Absence of a Tower of States in Ferrimagnets
Louk Rademaker, Aron Beekman, Jasper van Wezel
Antiferromagnets and ferromagnets are archetypes of the two distinct (type-A and type-B) ways of spontaneously breaking a continuous symmetry. Although type-B Nambu--Goldstone mode…
Typicality-Based Variational Cluster Approach to Thermodynamic Properties of the Hubbard Model
Hisao Nishida, Ryo Fujiuchi, Koudai Sugimoto +1
We develop the variational-cluster-approximation method based on the thermal-pure-quantum-state approach and apply the method to the calculations of the thermodynamic properties of…
Effects of Dzyaloshinskii-Moriya interactions in volborthite: Magnetic orders and thermal Hall effect
Shunsuke Furukawa, Tsutomu Momoi
Volborthite offers an interesting example of a highly frustrated quantum magnet in which ferromagnetic and antiferromagnetic interactions compete on anisotropic kagome lattices. A…
Multiple Diffusion-Freezing Mechanisms in Molecular Hydrogen Films
Takahiko Makiuchi, Katsuyuki Yamashita, Michihiro Tagai +2
Molecular hydrogen is a fascinating candidate for quantum fluid showing bosonic and fermionic superfluidity. We have studied diffusion dynamics of thin films of H, HD and D…
Elastic Anomaly of Thin Neon Film
Takahiko Makiuchi, Katsuyuki Yamashita, Michihiro Tagai +2
Adsorbed molecular films provide two-dimensional systems that show various emergent phenomena that are not observed in bulk counterparts. We have measured the elasticity of thin ne…