TY - JOUR
T1 - Hydrated lithium intercalation into the Kitaev spin liquid candidate material α-RuCl3
AU - Imai, Yoshinori
AU - Konno, Katsuya
AU - Hasegawa, Yoshinao
AU - Aoyama, Takuya
AU - Ohgushi, Kenya
N1 - Funding Information:
We would like to thank F. Sakamoto at Tohoku University for his help with the ICP analysis and Y. Motome at the University of Tokyo and J. Nasu at Yokohama National University for fruitful discussions. This work was supported by JSPS KAKENHI Grants No. 16K17732, No. 17H05474, No. 18H01159, No. 18H04302, No. 18K03531, and No. 19H04685.
Publisher Copyright:
© 2019 American Physical Society.
PY - 2019/6/21
Y1 - 2019/6/21
N2 - We study the transport and magnetic properties of hydrated and lithium-intercalated α-RuCl3,LixRuCl3·yH2O, to investigate the effect on mobile-carrier doping into candidate materials for a realization of a Kitaev model. From thermogravimetric and one-dimensional electron map analyses, we find two crystal structures of this system, that is, monolayer hydrated LixRuCl3·yH2O(x≈0.56,y≈1.3) and bilayer hydrated LixRuCl3·yH2O(x≈0.56,y≈3.9). The temperature dependence of the electrical resistivity shows a temperature hysteresis at 200-270 K, which is considered to relate to the formation of a charge order. The antiferromagnetic order at 7-13 K in pristine α-RuCl3 is successfully suppressed down to 2 K in bilayer hydrated LixRuCl3·yH2O, which is sensitive to not only the electronic state of Ru but also the interlayer distance between Ru-Cl planes.
AB - We study the transport and magnetic properties of hydrated and lithium-intercalated α-RuCl3,LixRuCl3·yH2O, to investigate the effect on mobile-carrier doping into candidate materials for a realization of a Kitaev model. From thermogravimetric and one-dimensional electron map analyses, we find two crystal structures of this system, that is, monolayer hydrated LixRuCl3·yH2O(x≈0.56,y≈1.3) and bilayer hydrated LixRuCl3·yH2O(x≈0.56,y≈3.9). The temperature dependence of the electrical resistivity shows a temperature hysteresis at 200-270 K, which is considered to relate to the formation of a charge order. The antiferromagnetic order at 7-13 K in pristine α-RuCl3 is successfully suppressed down to 2 K in bilayer hydrated LixRuCl3·yH2O, which is sensitive to not only the electronic state of Ru but also the interlayer distance between Ru-Cl planes.
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U2 - 10.1103/PhysRevB.99.245141
DO - 10.1103/PhysRevB.99.245141
M3 - Article
AN - SCOPUS:85068866964
VL - 99
JO - Physical Review B
JF - Physical Review B
SN - 2469-9950
IS - 24
M1 - 245141
ER -