Abstract
We discuss herein the emergence of a large entropy change in metallic Li0.33VS2 derived from orbitally assisted loose σ bond formation. Comprehensive structural studies based on synchrotron x-ray and neutron diffraction analyses clarify the fabrication of ribbon chains at 375 K, consisting of multiple three-centered two-electron σ bonds based on the viewpoint of local chemical bonding. Although the metallic conductivity persists down to the lowest temperature measured, an exceptionally large entropy change as a metal, as much as ΔS=6.6Jmol-1K-1, appears at the transition. The emergence of a large entropy change in a metallic state may possibly lead to different functional materials, such as a heat-storage material with a rapid thermal response.
| Original language | English |
|---|---|
| Article number | 081104 |
| Journal | Physical Review B |
| Volume | 98 |
| Issue number | 8 |
| DOIs | |
| Publication status | Published - 2018 Aug 7 |
| Externally published | Yes |
Fingerprint
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics
Cite this
Large entropy change derived from orbitally assisted three-centered two-electron σ bond formation in metallic Li0.33VS2. / Katayama, N.; Tamura, S.; Yamaguchi, T.; Sugimoto, Koudai; Iida, K.; Matsukawa, T.; Hoshikawa, A.; Ishigaki, T.; Kobayashi, S.; Ohta, Y.; Sawa, H.
In: Physical Review B, Vol. 98, No. 8, 081104, 07.08.2018.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Large entropy change derived from orbitally assisted three-centered two-electron σ bond formation in metallic Li0.33VS2
AU - Katayama, N.
AU - Tamura, S.
AU - Yamaguchi, T.
AU - Sugimoto, Koudai
AU - Iida, K.
AU - Matsukawa, T.
AU - Hoshikawa, A.
AU - Ishigaki, T.
AU - Kobayashi, S.
AU - Ohta, Y.
AU - Sawa, H.
PY - 2018/8/7
Y1 - 2018/8/7
N2 - We discuss herein the emergence of a large entropy change in metallic Li0.33VS2 derived from orbitally assisted loose σ bond formation. Comprehensive structural studies based on synchrotron x-ray and neutron diffraction analyses clarify the fabrication of ribbon chains at 375 K, consisting of multiple three-centered two-electron σ bonds based on the viewpoint of local chemical bonding. Although the metallic conductivity persists down to the lowest temperature measured, an exceptionally large entropy change as a metal, as much as ΔS=6.6Jmol-1K-1, appears at the transition. The emergence of a large entropy change in a metallic state may possibly lead to different functional materials, such as a heat-storage material with a rapid thermal response.
AB - We discuss herein the emergence of a large entropy change in metallic Li0.33VS2 derived from orbitally assisted loose σ bond formation. Comprehensive structural studies based on synchrotron x-ray and neutron diffraction analyses clarify the fabrication of ribbon chains at 375 K, consisting of multiple three-centered two-electron σ bonds based on the viewpoint of local chemical bonding. Although the metallic conductivity persists down to the lowest temperature measured, an exceptionally large entropy change as a metal, as much as ΔS=6.6Jmol-1K-1, appears at the transition. The emergence of a large entropy change in a metallic state may possibly lead to different functional materials, such as a heat-storage material with a rapid thermal response.
UR - http://www.scopus.com/inward/record.url?scp=85051497248&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85051497248&partnerID=8YFLogxK
U2 - 10.1103/PhysRevB.98.081104
DO - 10.1103/PhysRevB.98.081104
M3 - Article
VL - 98
JO - Physical Review B-Condensed Matter
JF - Physical Review B-Condensed Matter
SN - 2469-9950
IS - 8
M1 - 081104
ER -