Fig. 1: Phase diagram and the basic electronic structure of Ba1−xKxMn2As2 (x = 0.3). | Nature Communications

Fig. 1: Phase diagram and the basic electronic structure of Ba1−xKxMn2As2 (x = 0.3).

From: Strong band renormalization and emergent ferromagnetism induced by electron-antiferromagnetic-magnon coupling

Fig. 1

a Phase diagram of Ba1−xKxMn2As2. The open circle indicates the Curie temperature determined by magnetic susceptibility measurements on our sample (Section 14 of Supplemental Materials). The filled circles indicate data from refs. 32,35,69,70. b, c Crystal structure and three-dimensional Brillouin zone of Ba1−xKxMn2As2. The blue arrows indicate the alignment of the Mn magnetic moments in the G-type antiferromagnetic (AFM) state. d–f Photoemission intensity maps in the high symmetric planes of the Brillouin zone, integrated over an energy window of EF ± 20 meV. The ky − kz map in the ΓXZ plane is measured with C+-polarized (pol.) photons from 58 to 100 eV. g, h Photoemission intensity along cut #1 in panel e taken by C+-pol. photons and its second derivative with respect to momentum, respectively. The dashed curves indicate the band dispersions. i Momentum distribution curves (MDCs) along cut #1. The ARPES data were measured at 30 K, BL5-2 of SSRL.

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