Publication Date:
2015-10-31
Description:
Magnetic domain walls are boundaries between regions with different configurations of the same magnetic order. In a magnetic insulator, where the magnetic order is tied to its bulk insulating property, it has been postulated that electrical properties are drastically different along the domain walls, where the order is inevitably disturbed. Here we report the discovery of highly conductive magnetic domain walls in a magnetic insulator, Nd2Ir2O7, that has an unusual all-in-all-out magnetic order, via transport and spatially resolved microwave impedance microscopy. The domain walls have a virtually temperature-independent sheet resistance of ~1 kilohm per square, show smooth morphology with no preferred orientation, are free from pinning by disorders, and have strong thermal and magnetic field responses that agree with expectations for all-in-all-out magnetic order.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Ma, Eric Yue -- Cui, Yong-Tao -- Ueda, Kentaro -- Tang, Shujie -- Chen, Kai -- Tamura, Nobumichi -- Wu, Phillip M -- Fujioka, Jun -- Tokura, Yoshinori -- Shen, Zhi-Xun -- New York, N.Y. -- Science. 2015 Oct 30;350(6260):538-41. doi: 10.1126/science.aac8289.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Geballe Laboratory for Advanced Materials (GLAM), Stanford University, Stanford, CA, USA. Department of Applied Physics, Stanford University, Stanford, CA, USA. ; Geballe Laboratory for Advanced Materials (GLAM), Stanford University, Stanford, CA, USA. ; Department of Applied Physics, University of Tokyo, Tokyo, Japan. RIKEN Center for Emergent Matter Science (CEMS), Saitama, Japan. ; Geballe Laboratory for Advanced Materials (GLAM), Stanford University, Stanford, CA, USA. State Key Laboratory of Functional Materials for Informatics, Shanghai Institute of Microsystem and Information Technology (SIMIT), Shanghai, China. ; Center for Advancing Materials Performance from the Nanoscale (CAMP-Nano), State Key Laboratory for Mechanical Behavior of Materials, Xi'an Jiaotong University, Xi'an, China. ; Advanced Light Source (ALS), Lawrence Berkeley National Laboratory, Berkeley, CA, USA. ; Department of Applied Physics, University of Tokyo, Tokyo, Japan. RIKEN Center for Emergent Matter Science (CEMS), Saitama, Japan. tokura@riken.jp zxshen@stanford.edu. ; Geballe Laboratory for Advanced Materials (GLAM), Stanford University, Stanford, CA, USA. Department of Applied Physics, Stanford University, Stanford, CA, USA. tokura@riken.jp zxshen@stanford.edu.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/26516280" target="_blank"〉PubMed〈/a〉
Print ISSN:
0036-8075
Electronic ISSN:
1095-9203
Topics:
Biology
,
Chemistry and Pharmacology
,
Computer Science
,
Medicine
,
Natural Sciences in General
,
Physics
Permalink