A Metallic -wave magnet with commensurate spin helix

山田 林介*; Birch, M. T.*; Baral, P. R.*; 奥村 駿*; 中野 遼太*; Gao, S.*; 江澤 雅彦*; 野本 拓也*; Masell, J.*; 石原 由貴*; Kolincio, K. K.*; Belpolski, I.*; 佐賀山 基*; 中尾 裕則*; 大石 一城*; 大原 高志   ; 鬼柳 亮嗣  ; 中島 多朗*; 十倉 好紀*; 有馬 孝尚*; 求 幸年*; Hirschmann, M. M.*; Hirschberger, M.*

Yamada, Rinsuke*; Birch, M. T.*; Baral, P. R.*; Okumura, Shun*; Nakano, Ryota*; Gao, S.*; Ezawa, Motohiko*; Nomoto, Takuya*; Masell, J.*; Ishihara, Yuki*; Kolincio, K. K.*; Belpolski, I.*; Sagayama, Hajime*; Nakao, Hironori*; Oishi, Kazuki*; Ohara, Takashi; Kiyanagi, Ryoji; Nakajima, Taro*; Tokura, Yoshinori*; Arima, Takahisa*; Motome, Yukitoshi*; Hirschmann, M. M.*; Hirschberger, M.*

Antiferromagnetic states with spin-split electronic structure give rise to novel spintronic, magnonic, and electronic phenomena despite (near-) zero net magnetization. The simplest odd-parity spin splitting, -wave, was originally proposed to emerge from a collective instability in interacting electron systems. Recent theory identifies a distinct route to realise -wave spin-split electronic bands without strong correlations, termed p-wave magnetism. Here we demonstrate an experimental realisation of a metallic -wave magnet.