Spin-lattice instability to a fractional magnetization state in the spinel HgCr 2 O 4

Nature Physics

Volumn 3, Issue 6, 2007, Pages 397-400

  Matsuda, M ^a   Ueda, H ^b   Kikkawa, A ^c   Tanaka, Y ^c   Katsumata, K ^c   Narumi, Y ^b   Inami, T ^a   Ueda, Y ^b   Lee, S H ^d  

^a JAPAN ATOMIC ENERGY AGENCY   (Japan)

^b UNIVERSITY OF TOKYO   (Japan)

^c Harima Institute ^*  (Japan)

^d University of Virginia   (United States)

Author keywords

[No Author keywords available]

Indexed keywords

GEOMETRY; GROUND STATE; MAGNETIZATION; MERCURY COMPOUNDS; SPIN DYNAMICS; X RAY SCATTERING;

CHARGE ORDERED STATE; CORNER-SHARING TETRAHEDRA; EXTERNAL MAGNETIC FIELD; FRACTIONAL SPIN; GEOMETRICAL FRUSTRATIONS; LATTICE DISTORTIONS; MAGNETIC INTERACTIONS; SYNCHROTRON X-RAY SCATTERING;

CHROMIUM COMPOUNDS;

EID: 34249938600     PISSN: 17452473     EISSN: 17452481     Source Type: Journal    
DOI: 10.1038/nphys586     Document Type: Article

References (26)

1. Lee, S.-H. et al. Emergent excitations in a geometrically frustrated magnet. Nature 418, 856-858 (2002).
2. Bramwell, S. T. & Gingras, M. J. P. Spin ice state in frustrated magnetic pyrochlore materials. Science 294, 1495-1501 (2001).
3. Ramirez, A. P. in Handbook on Magnetic Materials Vol. 13 (ed. Busch, K. J. H.) 423-520 (Elsevier Science, Amsterdam, 2001).
4. 4 ) below the Verwey transition temperature. Acta Crystallogr. 38, 2121-2133 (1982).
5. 4 . Nature 416, 155-158 (2002).
6. 4 . Phys. Rev. Lett. 96, 086406 (2006).
7. Moessner, R. & Chalker, J. T. Properties of a classical spin liquid: The Heisenberg pyrochlore antiferromagnet. Phys. Rev. Lett. 80, 2929-2932 (1998).
8. Canals, B. & Lacroix, C. Pyrochlore antiferromagnet: A three-dimensional quantum spin liquid. Phys. Rev. Lett. 80, 2933-2936 (1998).
9. Goodenough, J. B. Direct cation-cation interaction in several oxides. Phys. Rev. 117, 1442-1451 (1960).
10. 3 . Physica 48, 13-42 (1970).
11. Lee, S.-H., Broholm, C., Kim, T. H., Ratcliff, W. & Cheong, S.-W. Local spin resonance and spin-Peierls-like phase transition in a geometrically frustrated antiferromagnet. Phys. Rev. Lett. 84, 3718-3721 (2000).
12. 4 . Phys. Rev. Lett. 94, 047202 (2005).
13. 4 . Phys. Rev. B 73, 094415 (2006).
14. Yamashita, Y. & Ueda, K. Spin-driven Jahn-Teller distortion in a pyrochlore system. Phys. Rev. Lett. 85, 4960-4963 (2000).
15. Tchernyshyov, O., Moessner, R. & Sondhi, S. L. Order by distortion and string modes in pyrochlore antiferromagnets. Phys. Rev. Lett. 88, 067203 (2002).
16. 7 . Phys. Rev. Lett. 87, 177201 (2001).
17. Khomskii, D. I. & Mizokawa, T. Orbitally induced Peierls state in spinels. Phys. Rev. Lett. 94, 156402 (2005).
18. 4 with the spinel structure. J. Phys. Soc. Jpn 66, 778-783 (1997).
19. Tsunetsugu, H. & Motome, Y. Magnetic transition and orbital degrees of freedom in vanadium spinels. Phys. Rev. B 68, 060405(R) (2003).
20. 4 . Phys. Rev. Lett. 93, 156407 (2004).
21. 4 . Phys. Rev. b 74, 014108 (2006).
22. 4 . Phys. Rev. Lett. 95, 247204 (2005).
23. 2+ ) in oxides. J. Phys. Soc. Jpn 28, 1188-1196 (1970).
24. Penc, K., Shannon, N. & Shiba, H. Half-magnetization plateau stabilized by structural distortion in the antiferromagnetic Heisenberg model on a pyrochlore lattice. Phys. Rev. Lett. 93, 197203 (2004).
25. Bergman, D. L., Shindou, R., Fiete, G. A. & Balents, L. Quantum effects in half-polarized pyrochlore antiferromagnet. Phys. Rev. Lett. 96, 097207 (2006).
26. Bergman, D. L., Shindou, R., Fiete, G. A. & Balents, L. Mechanisms of degeneracy breaking in pyrochlore antiferromagnets. Phys. Rev. B 74, 134409 (2006).