Band Structure Evolution during Reversible Interconversion between Dirac and Standard Fermions in Organic Charge-Transfer Salts
, Kensuke Konishi 1,2, Ichiro Yamane 3, Toshihiro Shimada 3 and Toshio Naito 1,2,4,*Round 1
Reviewer 1 Report
This is an excellent contribution in the field of organic conductors, with a focus on the charge-transfer (CT) salts alpha-D2I3 (D = C10H8S8 (ET), C10H8S6Se2 (STF), and C10H8S4Se4 (BETS)) which are Dirac cone materials and for which the interconversion between Dirac fermions and standard fermions is investigated with the help of band structure calculations. The manuscript is of outstanding quality.
1) Recently a potential chiral Dirac cone material has been reported: J. Mater. Chem. C 2021, 9, 10777–10786.
Author Response
Thank you for your correct understanding and high evaluation of our manuscript. We also thank the reviewer kindly letting us know the recent publication on a potential Dirac cone material, which is added in a reference list as Ref.18 and cited in L. 41 in the revised manuscript.
Reviewer 2 Report
In this paper, the authors discuss the transformation between standard fermions and Dirac fermions in organic salts, a-D2I3 (D = ET, STF, and BETS). The components (donor D and acceptor A species) are energetically particularly close to each other, leading to temperature- and D-A combination-sensitive CT interactions in the solid state. this work is interesting and it is easy to follow. It can be accepted after addressing the following minor concerns.
1. the authors mentioned that organic salts were synthesized by following the reported procedures, while the synthetic and/or crystal growth procedure should be described in details. Besides crystal structure measured by XRD, the authors should provide other characterization techniques such as NMR, etc. to confirm the formation of the molecules.
2. the authors mentioned phase transition, it is necessary to show the Differential Scanning Calorimeter measurements and the temperature-dependent dielectric constant measurements for those charge transport salts.
Author Response
Please see the attachment.
Author Response File: 
Author Response.pdf
