TY - JOUR
T1 - Electronic states of domain structure in 1T-TaS2-xSe x observed by STM/STS
AU - Fujii, D.
AU - Iwasaki, T.
AU - Akiyama, K.
AU - Fujisawa, Y.
AU - Demura, S.
AU - Sakata, H.
N1 - Publisher Copyright:
© Published under licence by IOP Publishing Ltd.
PY - 2018/4/19
Y1 - 2018/4/19
N2 - We report on a systematic scanning tunneling microscopy and spectroscopy (STM/STS) study on 1T-TaS2-xSe x (x = 0, 0.3, 1.0) at 4.2 K. While the compounds with x = 0 and 0.3, which undergoes the Mott transition, showed the commensurate charge density wave (CDW) with the period of (a 0 is in-plane lattice constant), the compound with x=1, which shows superconductivity at 3.5 K, exhibits anomalous domain structure: The domain structure consists of regions with regular array of David-stars divided by bright contrasted walls at positive bias voltage. We found the domain wall showed the different electronic state from that of the domain.
AB - We report on a systematic scanning tunneling microscopy and spectroscopy (STM/STS) study on 1T-TaS2-xSe x (x = 0, 0.3, 1.0) at 4.2 K. While the compounds with x = 0 and 0.3, which undergoes the Mott transition, showed the commensurate charge density wave (CDW) with the period of (a 0 is in-plane lattice constant), the compound with x=1, which shows superconductivity at 3.5 K, exhibits anomalous domain structure: The domain structure consists of regions with regular array of David-stars divided by bright contrasted walls at positive bias voltage. We found the domain wall showed the different electronic state from that of the domain.
UR - http://www.scopus.com/inward/record.url?scp=85046077982&partnerID=8YFLogxK
U2 - 10.1088/1742-6596/969/1/012041
DO - 10.1088/1742-6596/969/1/012041
M3 - Conference article
AN - SCOPUS:85046077982
SN - 1742-6588
VL - 969
JO - Journal of Physics: Conference Series
JF - Journal of Physics: Conference Series
IS - 1
M1 - 012041
T2 - 28th International Conference on Low Temperature Physics, LT 2018
Y2 - 9 August 2017 through 16 August 2017
ER -