Optical imaging of coexisting collinear and spiral spin phases in the magnetoelectric multiferroic MnWO4

Physical Review B - Condensed Matter and Materials Physics

Volumn 81, Issue 6, 2010, Pages

  Taniguchi, Kouji ^a,b   Saito, Mitsuru ^a   Arima, Taka Hisa ^a  

^a TOHOKU UNIVERSITY   (Japan)

^b UNIVERSITY OF TOKYO   (Japan)

Author keywords

[No Author keywords available]

Indexed keywords

EID: 77954826655     PISSN: 10980121     EISSN: 1550235X     Source Type: Journal    
DOI: 10.1103/PhysRevB.81.064406     Document Type: Article

References (38)

1. M. Fiebig, J. Phys. D 38, R123 (2005). 10.1088/0022-3727/38/8/R01
2. S.-W. Cheong and M. Mostovoy, Nature Mater. 6, 13 (2007). 10.1038/nmat1804
3. T. Kimura, T. Goto, H. Shintani, K. Ishizaka, T. Arima, and Y. Tokura, Nature (London) 426, 55 (2003). 10.1038/nature02018
4. N. Hur, S. Park, P. A. Sharma, J. S. Ahn, S. Guha, and S.-W. Cheong, Nature (London) 429, 392 (2004). 10.1038/nature02572
5. T. Lottermoser, T. Lonkai, U. Amann, D. Hohlwein, J. Ihringer, and M. Fiebig, Nature (London) 430, 541 (2004). 10.1038/nature02728
6. T. Kimura, G. Lawes, and A. P. Ramirez, Phys. Rev. Lett. 94, 137201 (2005). 10.1103/PhysRevLett.94.137201
7. G. Lawes, A. B. Harris, T. Kimura, N. Rogado, R. J. Cava, A. Aharony, O. Entin-Wohlman, T. Yildrim, M. Kenzelmann, C. Broholm, and A. P. Ramirez, Phys. Rev. Lett. 95, 087205 (2005). 10.1103/PhysRevLett.95.087205
8. Y. Yamasaki, S. Miyasaka, Y. Kaneko, J.-P. He, T. Arima, and Y. Tokura, Phys. Rev. Lett. 96, 207204 (2006). 10.1103/PhysRevLett.96.207204
9. K. Taniguchi, N. Abe, T. Takenobu, Y. Iwasa, and T. Arima, Phys. Rev. Lett. 97, 097203 (2006). 10.1103/PhysRevLett.97.097203
10. S. Park, Y. J. Choi, C. L. Zhang, and S.-W. Cheong, Phys. Rev. Lett. 98, 057601 (2007). 10.1103/PhysRevLett.98.057601
11. M. Kenzelmann, G. Lawes, A. B. Harris, G. Gasparovic, C. Broholm, A. P. Ramirez, G. A. Jorge, M. Jaime, S. Park, Q. Huang, A. Ya. Shapiro, and L. A. Demianets, Phys. Rev. Lett. 98, 267205 (2007). 10.1103/PhysRevLett.98.267205
12. Y. J. Choi, H. T. Yi, S. Lee, Q. Huang, V. Kiryukhin, and S.-W. Cheong, Phys. Rev. Lett. 100, 047601 (2008). 10.1103/PhysRevLett.100.047601
13. T. Kimura, Y. Sekio, H. Nakamura, T. Siegrist, and A. P. Ramirez, Nature Mater. 7, 291 (2008). 10.1038/nmat2125
14. K. Taniguchi, N. Abe, S. Ohtani, H. Umetsu, and T. Arima, Appl. Phys. Express 1, 031301 (2008). 10.1143/APEX.1.031301
15. S. Ishiwata, Y. Taguchi, H. Murakawa, Y. Onose, and Y. Tokura, Science 319, 1643 (2008). 10.1126/science.1154507
16. S. Seki, Y. Onose, and Y. Tokura, Phys. Rev. Lett. 101, 067204 (2008). 10.1103/PhysRevLett.101.067204
17. F. Kagawa, M. Mochizuki, Y. Onose, H. Murakawa, Y. Kaneko, N. Furukawa, and Y. Tokura, Phys. Rev. Lett. 102, 057604 (2009). 10.1103/PhysRevLett.102. 057604
18. Y. Tokunaga, N. Furukawa, H. Sakai, Y. Taguchi, T. Arima, and Y. Tokura, Nature Mater. 8, 558 (2009). 10.1038/nmat2469
19. M. Fiebig, T. Lottermoser, D. Fröhlich, A. V. Goltsev, and R. V. Pisarev, Nature (London) 419, 818 (2002). 10.1038/nature01077
20. D. Meier, M. Maringer, T. Lottermoser, P. Becker, L. Bohatý, and M. Fiebig, Phys. Rev. Lett. 102, 107202 (2009). 10.1103/PhysRevLett.102.107202
21. It is conventional to use the term "domain" for the regions with a different orientation of order parameter within one phase of ferromagnetic or ferroelectric materials. On the other hand, we can find the usage of the term domain for each separated area in the two-phase coexisting state of antiferromagnetic or multiferroic materials: Refs. In this paper, we employ the latter usage of the term domain.
22. S. B. Palmer, J. Baruchel, A. Drillat, C. Patterson, and D. Fort, J. Magn. Magn. Mater. 54-57, 1626 (1986). 10.1016/0304-8853(86)90952-2
23. J. C. Lang, D. R. Lee, D. Haskel, and G. Srajer, J. Appl. Phys. 95, 6537 (2004). 10.1063/1.1688252
24. M. Uchida, Y. Onose, Y. Matsui, and Y. Tokura, Science 311, 359 (2006). 10.1126/science.1120639
25. A. H. Arkenbout, T. T. M. Palstra, T. Siegrist, and T. Kimura, Phys. Rev. B 74, 184431 (2006). 10.1103/PhysRevB.74.184431
26. O. Heyer, N. Hollmann, I. Klassen, S. Jodlauk, L. Bohatý, P. Becker, J. A. Mydosh, T. Lorenz, and D. Khomskii, J. Phys.: Condens. Matter 18, L471 (2006). 10.1088/0953-8984/18/39/L01
27. K. Taniguchi, N. Abe, H. Sagayama, S. Otani, T. Takenobu, Y. Iwasa, and T. Arima, Phys. Rev. B 77, 064408 (2008). 10.1103/PhysRevB.77.064408
28. G. Lautenschläger, H. Weitzel, T. Vogt, R. Hock, A. Böhm, M. Bonnet, and H. Fuess, Phys. Rev. B 48, 6087 (1993). 10.1103/PhysRevB.48.6087
29. K. Taniguchi, N. Abe, S. Ohtani, and T. Arima, Phys. Rev. Lett. 102, 147201 (2009). 10.1103/PhysRevLett.102.147201
30. A. Nogami, T. Suzuki, and T. Katsufuji, J. Phys. Soc. Jpn. 77, 115001 (2008). 10.1143/JPSJ.77.115001
31. N. N. Kovaleva, A. V. Boris, C. Bernhard, A. Kulakov, A. Pimenov, A. M. Balbashov, G. Khaliullin, and B. Keimer, Phys. Rev. Lett. 93, 147204 (2004). 10.1103/PhysRevLett.93.147204
32. S. Sugano, Y. Tanabe, and H. Kamimura, Multiplets of Transition Metal Ions in Crystals (Academic, New York, 1970), p. 106.
33. + sites within a c plane because of the Pauli's exclusion principle. On the other hand, in the spiral spin phase (AF2), in which the neighboring spin angle is about 90 °, transition probability to the neighboring sites becomes half of that in AF1, although an electron can transfer to the all neighboring sites. As a result, transition probability should hardly be affected by the spin structure change from AF1 to AF2. In addition, we cannot explain the observed optical principal-axes directions, which deviate from the a and the c axes, although the optical principal axes within the a c plane should reflect the zigzag-chain direction in the interionic transition.
34. D. R. Huffman, R. L. Wild, and M. Shinmei, J. Chem. Phys. 50, 4092 (1969). 10.1063/1.1671670
35. A. R. King and D. Paquette, Phys. Rev. Lett. 30, 662 (1973). 10.1103/PhysRevLett.30.662
36. As for the other possible matrix element e | H S O | m m | H e r | g, an almost similar discussion can be made.
37. In this study, we define the magnetic principal axes within the a c plane as the easy (x) and the hard (y) axis, respectively. In this magnetic principal-axes setting, the crystallographic b axis is defined as z axis.
38. + site, in which | g = | S = 5 / 2, S x = ± 5 / 2. In this case, the state with S = 3 / 2 is not hybridized through the spin-orbit coupling.