Disorder dependence of monopole dynamics in Dy2Ti2O7 probed via thermal transport measurements

被引：8

作者：

Toews, W. H. ^{[1
,2
]}

Reid, J. A. ^{[2
]}

Nadas, R. B. ^{[2
]}

Rahemtulla, A. ^{[1
,3
]}

Kycia, S. ^{[1
,3
]}

Munsie, T. J. S. ^{[4
]}

Dabkowska, H. A. ^{[4
,5
,6
]}

Gaulin, B. D. ^{[4
,5
,6
]}

Hill, R. W. ^{[1
,2
]}

机构：

[1] Univ Waterloo, Guelph Waterloo Phys Inst, Waterloo, ON N2L 3G1, Canada

[2] Univ Waterloo, Dept Phys & Astron, Waterloo, ON N2L 3G1, Canada

[3] Univ Waterloo, Dept Phys, Waterloo, ON N2L 3G1, Canada

[4] McMaster Univ, Dept Phys & Astron, Hamilton, ON L8S 4M1, Canada

[5] McMaster Univ, Brockhouse Inst Mat Res, Hamilton, ON L8S 4M1, Canada

[6] Canadian Inst Adv Res, 180 Dundas St West, Toronto, ON M5G 1Z8, Canada

来源：

PHYSICAL REVIEW B | 2018年 / 98卷 / 13期

基金：

加拿大自然科学与工程研究理事会;

关键词：

SPIN ICE; MAGNETIC MONOPOLES;

D O I：

10.1103/PhysRevB.98.134446

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Extensive thermal conductivity measurements have been conducted on two single crystals of Dy2Ti2O7 from 60 mK to 60 K. The samples are differentiated by their levels of disorder, which are determined through a combination of x-ray diffraction measurements and thermal conductivity data. We report clear evidence of a magnetic contribution to the thermal conductivity, which we attribute to magnetic monopoles. Furthermore, the magnetic conductivity increases with increased disorder due to the impact of disorder on the monopole density.

引用

页数：5

共 26 条

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