TY  - JOUR
AU  - Biele, Robert
AU  - D’Agosta, Roberto
AU  - Rubio, Angel
TI  - Time-Dependent Thermal Transport Theory
JO  - Physical review letters
VL  - 115
IS  - 5
SN  - 1079-7114
CY  - College Park, Md.
PB  - APS
M1  - PUBDB-2016-02893
SP  - 056801
PY  - 2015
AB  - Understanding thermal transport in nanoscale systems presents important challenges to both theory and experiment. In particular, the concept of local temperature at the nanoscale appears difficult to justify. Here, we propose a theoretical approach where we replace the temperature gradient with controllable external blackbody radiations. The theory recovers known physical results, for example, the linear relation between the thermal current and the temperature difference of two blackbodies. Furthermore, our theory is not limited to the linear regime and goes beyond accounting for nonlinear effects and transient phenomena. Since the present theory is general and can be adapted to describe both electron and phonon dynamics, it provides a first step toward a unified formalism for investigating thermal and electronic transport.
LB  - PUB:(DE-HGF)16
UR  - <Go to ISI:>//WOS:000358609800013
C6  - pmid:26274434
DO  - DOI:10.1103/PhysRevLett.115.056801
UR  - https://bib-pubdb1.desy.de/record/301824
ER  -