Phys. Rev. B 67, 184502 (2003) [5 pages]Evidence for a large magnetic heat current in insulating layered cupratesReceived 7 January 2003; published 5 May 2003 The in-plane thermal conductivity k of the two-dimensional antiferromagnetic monolayer cuprate Sr2CuO2Cl2 is studied. Analysis of the unusual temperature dependence of k reveals that at low temperatures the heat is carried by phonons, whereas at high temperatures magnetic excitations contribute significantly. A comparison with other insulating layered cuprates suggests that a large magnetic contribution to the thermal conductivity is an intrinsic property of these materials. © 2003 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevB.67.184502
DOI:
10.1103/PhysRevB.67.184502
PACS:
74.72.-h, 66.70.+f, 75.10.Jm
|
|
About | Terms and Conditions | Subscriptions | Search | Help
Use of the American Physical Society websites and journals implies that the user has read and agrees to our Terms and Conditions and any applicable Subscription Agreement. Physical Review®, Physical Review Letters®, Reviews of Modern Physics®, and Physical Review Special Topics® are trademarks of the American Physical Society.