No Mass Gap Phase Transition in Novel Massless Dirac Fermion Material


2021-3-22

JPS Hot Topics 1, 023

https://doi.org/10.7566/JPSHT.1.023

© The Physical Society of Japan

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Quantum Phase Transition in Organic Massless Dirac Fermion System α-(BEDT-TTF)2I3 under Pressure

Yoshinari Unozawa, Yoshitaka Kawasugi, Masayuki Suda, Hiroshi M. Yamamoto, Reizo Kato, Yutaka Nishio, Koji Kajita, Takao Morinari, and Naoya Tajima
J. Phys. Soc. Jpn. 89, 123702 (2020).

Using an organic massless Dirac fermion system, we found that massless Dirac fermions undergo a quantum phase transition without creating any mass gap even in the strong coupling regime.


Quantum Phase Transition in Organic Massless Dirac Fermion System α-(BEDT-TTF)2I3 under Pressure

Yoshinari Unozawa, Yoshitaka Kawasugi, Masayuki Suda, Hiroshi M. Yamamoto, Reizo Kato, Yutaka Nishio, Koji Kajita, Takao Morinari, and Naoya Tajima
J. Phys. Soc. Jpn. 89, 123702 (2020).

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