Neutron scattering investigation of the spin ice state in Dy2Ti2O7 -: art. no. 134408

被引：60

作者：

Fennell, T

Petrenko, OA

Fåk, B

Bramwell, ST

Enjalran, M

Yavors'kii, T

Gingras, MJP

Melko, RG

Balakrishnan, G

机构：

[1] UCL Royal Inst Great Britain, London W1S 4BS, England

[2] Rutherford Appleton Lab, ISIS Facil, Didcot OX11 0QX, Oxon, England

[3] UCL, Dept Chem, London WC1H 0AJ, England

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

[5] Univ Calif Santa Barbara, Dept Phys, Santa Barbara, CA 93106 USA

[6] Univ Warwick, Dept Phys, Coventry CV4 7AL, W Midlands, England

来源：

PHYSICAL REVIEW B | 2004年 / 70卷 / 13期

基金：

英国工程与自然科学研究理事会; 加拿大自然科学与工程研究理事会;

关键词：

D O I：

10.1103/PhysRevB.70.134408

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Dy2Ti2O7 has been advanced as an ideal spin ice material. We present a neutron scattering investigation of a single-crystal sample of (Dy2Ti2O7)-Dy-162. The scattering intensity has been mapped in zero applied field in the h,h,l and h,k,0 planes of reciprocal space at temperatures between 0.05 and 20 K. The measured diffuse scattering has been compared with that predicted by the dipolar spin ice model. The comparison is good, except at the Brillouin-zone boundaries where extra scattering appears in the experimental data. It is concluded that the dipolar spin ice model provides a successful basis for understanding Dy2Ti2O7, but that there are issues which remain to be clarified.

引用

页码：134408 / 1

页数：7

共 43 条

[1] Single crystal growth of rare earth titanate pyrochlores [J].