792 citations · 5.2k across the 61 of their papers we have counts for
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Anomalous Fermi liquid phase in metallic Skyrmion crystals
Haruki Watanabe, S. A. Parameswaran, S. Raghu +1
In non-centrosymmetric crystals such as MnSi, magnetic order can take the form of a skyrmion crystal (SkX) . In this phase, conduction electrons coupled to the local magnetic momen…
Massive Nambu-Goldstone Bosons
Haruki Watanabe, Tomáš Brauner, Hitoshi Murayama
Nicolis and Piazza have recently pointed out the existence of Nambu-Goldstone-like excitations in relativistic systems at finite density, whose gap is exactly determined by the che…
Redundancies in Nambu-Goldstone Bosons
Haruki Watanabe, Hitoshi Murayama
We propose a simple criterion to identify when Nambu-Goldstone bosons (NGBs) for different symmetries are redundant. It solves an old mystery why crystals have phonons for spontane…