scholarly journals Anisotropy-driven thermal conductivity switching and thermal hysteresis in a ferroelectric

2019 ◽  
Vol 115 (19) ◽  
pp. 192903 ◽  
Author(s):  
Juan Antonio Seijas-Bellido ◽  
Jorge Íñiguez ◽  
Riccardo Rurali
Keyword(s):  
Thermal Conductivity ◽  
Thermal Hysteresis ◽  
Conductivity Switching

scholarly journals Above-room-temperature giant thermal conductivity switching in spintronic multilayers

2021 ◽  
Vol 118 (4) ◽  
pp. 042409
Author(s):  
Hiroyasu Nakayama ◽  
Bin Xu ◽  
Sotaro Iwamoto ◽  
Kaoru Yamamoto ◽  
Ryo Iguchi ◽  
...  
Keyword(s):  
Thermal Conductivity ◽  
Room Temperature ◽  
Conductivity Switching

scholarly journals Light-triggered thermal conductivity switching in azobenzene polymers

2019 ◽  
Vol 116 (13) ◽  
pp. 5973-5978 ◽  
Author(s):  
Jungwoo Shin ◽  
Jaeuk Sung ◽  
Minjee Kang ◽  
Xu Xie ◽  
Byeongdu Lee ◽  
...  
Keyword(s):  
Thermal Conductivity ◽  
Conformational Transition ◽  
Green Light ◽  
Effective Control ◽  
Light Illumination ◽  
X Ray Scattering ◽  
Azobenzene Polymer ◽  
Liquid Transition ◽  
Conductivity Switching

Materials that can be switched between low and high thermal conductivity states would advance the control and conversion of thermal energy. Employing in situ time-domain thermoreflectance (TDTR) and in situ synchrotron X-ray scattering, we report a reversible, light-responsive azobenzene polymer that switches between high (0.35 W m−1K−1) and low thermal conductivity (0.10 W m−1K−1) states. This threefold change in the thermal conductivity is achieved by modulation of chain alignment resulted from the conformational transition between planar (trans) and nonplanar (cis) azobenzene groups under UV and green light illumination. This conformational transition leads to changes in the π-π stacking geometry and drives the crystal-to-liquid transition, which is fully reversible and occurs on a time scale of tens of seconds at room temperature. This result demonstrates an effective control of the thermophysical properties of polymers by modulating interchain π-π networks by light.

Thermal hysteresis of the thermal conductivity in isotopically impure bccHe3

1980 ◽  
Vol 22 (9) ◽  
pp. 4336-4345 ◽  
Author(s):  
A. S. Greenberg ◽  
G. Armstrong
Keyword(s):  
Thermal Conductivity ◽  
Thermal Hysteresis

Tunable thermal transport and reversible thermal conductivity switching in topologically networked bio-inspired materials

2018 ◽  
Vol 13 (10) ◽  
pp. 959-964 ◽  
Author(s):  
John A. Tomko ◽  
Abdon Pena-Francesch ◽  
Huihun Jung ◽  
Madhusudan Tyagi ◽  
Benjamin D. Allen ◽  
...  
Keyword(s):  
Thermal Conductivity ◽  
Thermal Transport ◽  
Conductivity Switching

Spin-crossover in an iron(iii) complex showing a broad thermal hysteresis

2021 ◽  
Author(s):  
Cyril Rajnák ◽  
Romana Mičová ◽  
Ján Moncoľ ◽  
Ľubor Dlháň ◽  
Christoph Krüger ◽  
...  
Keyword(s):  
Schiff Base ◽  
Schiff Base Ligand ◽  
Spin Crossover ◽  
Thermal Hysteresis ◽  
Mononuclear Complex ◽  
Hysteresis Width ◽  
Thermally Induced

A pentadentate Schiff-base ligand 3,5Cl-L2− and NCSe− form a iron(iii) mononuclear complex [Fe(3,5Cl-L)(NCSe)], which shows a thermally induced spin crossover with a broad hysteresis width of 24 K between 123 K (warming) and 99 K (cooling).

Nature of thermal hysteresis of martensitic transformation in aged Cu-Mn-A1 alloy

2003 ◽  
Vol 112 ◽  
pp. 495-498
Author(s):  
V. V. Kokorin ◽  
L. E. Kozlova ◽  
A. N. Titenko
Keyword(s):  
Martensitic Transformation ◽  
Thermal Hysteresis
Sign in / Sign up

Export Citation Format

Share Document