Fig. 4: Band structures and phonon spectra of 2D Hf2N2I2, Zr2N2Cl2, Hf2N2I2/Zr2N2Cl2, and 1T TiSe2. | Nature Communications

Fig. 4: Band structures and phonon spectra of 2D Hf2N2I2, Zr2N2Cl2, Hf2N2I2/Zr2N2Cl2, and 1T TiSe2.

From: Heterobilayers of 2D materials as a platform for excitonic superfluidity

Fig. 4

Band alignment in a Hf2N2I2 and b Zr2N2Cl2. Projected LDA band structures of c Hf2N2I2/Zr2N2Cl2 heterostructure, and d 1T TiSe2. LDA phonon dispersions with electron-phonon couplings λ of e 1T TiSe2, and f Hf2N2I2/Zr2N2Cl2 heterostructure. The area of the gray and red circles is proportional to the coupling strength λ.

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