Liquid-like thermal conduction in intercalated layered crystalline solids

Li, B.1; Wang, H.2; Kawakita, Y.1; Zhang, Q.3; Feygenson, M.4; Yu, H.L.5; Wu, D.6; Ohara, K.7; Kikuchi, T.1; Shibata, K.1; Yamada, T.8; Ning, X.K.9; Chen, Y.5; He, J.Q.6; Vaknin, D.3; Wu, R.Q.2; Nakajima, K.1; Kanatzidis, M.G.10

2018

10.1038/s41563-017-0004-2

Nature Materials   影响因子和分区

14764660

1476-4660

As a generic property, all substances transfer heat through microscopic collisions of constituent particles ¹ . A solid conducts heat through both transverse and longitudinal acoustic phonons, but a liquid employs only longitudinal vibrations ^2,3 . As a result, a solid is usually thermally more conductive than a liquid. In canonical viewpoints, such a difference also serves as the dynamic signature distinguishing a solid from a liquid. Here, we report liquid-like thermal conduction observed in the crystalline AgCrSe2. The transverse acoustic phonons are completely suppressed by the ultrafast dynamic disorder while the longitudinal acoustic phonons are strongly scattered but survive, and are thus responsible for the intrinsically ultralow thermal conductivity. This scenario is applicable to a wide variety of layered compounds with heavy intercalants in the van der Waals gaps, manifesting a broad implication on suppressing thermal conduction. These microscopic insights might reshape the fundamental understanding on thermal transport properties of matter and open up a general opportunity to optimize performances of thermoelectrics.
© The Author (s) 2017, under exclusive licence to Macmillan Publishers Limited, part of Springer Nature.

SCI ; EI

英语

NI期刊 ; NI论文

其他

[2015B1070] ; Department of Agriculture of Guangdong Province[00201517] ; Natural Science Foundation of Guangdong Province[2015A030308001] ; [2012P0906] ; [DE-FG02-05ER46237] ; Oak Ridge National Laboratory[IPTS-13971]

Chemistry ; Materials Science ; Physics

Chemistry, Physical ; Materials Science, Multidisciplinary ; Physics, Applied ; Physics, Condensed Matter

WOS:000426012000010

Nature Publishing Group

20180404668576

Crystalline materials ; Electromagnetic wave emission ; Liquids ; Phonons ; Van der Waals forces

Thermodynamics:641.1 ; Electromagnetic Waves:711 ; Physical Chemistry:801.4 ; Crystalline Solids:933.1

MATERIALS SCIENCE

Web of Science

1.J-PARC Center, Japan Atomic Energy Agency, Tokai, Ibaraki, Japan
2.Department of Physics and Astronomy, University of California, Irvine; CA, United States
3.Ames Laboratory and Department of Physics and Astronomy, Iowa State University, Ames; IA, United States
4.Jülich Center for Neutron Science, Forschungszentrum Jülich GmbH, Jülich, Germany
5.Department of Mechanical Engineering, University of Hong Kong, Hong Kong SAR, Hong Kong
6.Department of Physics, Southern University of Science and Technology (SUSTech), Shenzhen, China
7.SPring-8, Japan Synchrotron Radiation Research Institute, Sayo, Hyogo, Japan
8.Neutron Science and Technology Center, Comprehensive Research Organization for Science and Society (CROSS), Tokai, Ibaraki, Japan
9.Hebei Key Lab of Optic-electronic Information and Materials, College of Physics Science and Technology, Hebei University, Baoding, China
10.Department of Chemistry, Northwestern University, Evanston; IL, United States

Li, B.,Wang, H.,Kawakita, Y.,et al. Liquid-like thermal conduction in intercalated layered crystalline solids[J]. Nature Materials,2018,17(3):226-230.

Li, B..,Wang, H..,Kawakita, Y..,Zhang, Q..,Feygenson, M..,...&Kanatzidis, M.G..(2018).Liquid-like thermal conduction in intercalated layered crystalline solids.Nature Materials,17(3),226-230.

Li, B.,et al."Liquid-like thermal conduction in intercalated layered crystalline solids".Nature Materials 17.3(2018):226-230.