Hostname: page-component-77c89778f8-5wvtr Total loading time: 0 Render date: 2024-07-21T20:41:19.292Z Has data issue: false hasContentIssue false

Anisotropy of antiferromagnetic spin fluctuations in the heavy fermion superconductors of CeMIn5 and PuMGa5 (M=Co, Rh)

Published online by Cambridge University Press:  01 February 2011

Hironori Sakai
Affiliation:
sakai.hironori@jaea.go.jp, Japan Atomic Energy Agency, Advanced Science Research Center, Tokai, Ibaraki, Japan
Shinsaku Kambe
Affiliation:
kambe.shinsaku@jaea.go.jp, Japan Atomic Energy Agency, Advanced Science Research Center, Tokai, Ibaraki, Japan
Yo Tokunaga
Affiliation:
tokunaga.yo@jaea.go.jp, Japan Atomic Energy Agency, Advanced Science Research Center, Tokai, Ibaraki, Japan
Yoshinori Haga
Affiliation:
haga.yoshinori@jaea.go.jp, Japan Atomic Energy Agency, Advanced Science Research Center, Tokai, Ibaraki, Japan
Seung -H. Baek
Affiliation:
sbaek.fu@gmail.com, Los Alamos National Laboratory, MPA-CMMS, Los Alamos, New Mexico, United States
Filip Ronning
Affiliation:
fronning@lanl.gov, Los Alamos National Laboratory, MPA-CMMS, Los Alamos, New Mexico, United States
Eric Bauer
Affiliation:
edbauer@lanl.gov, Los Alamos National Laboratory, MPA-CMMS, Los Alamos, New Mexico, United States
Joe D Thompson
Affiliation:
jdt@lanl.gov, Los Alamos National Laboratory, MPA-CMMS, Los Alamos, New Mexico, United States
Get access

Abstract

The anisotropy of antiferromagnetic spin fluctuations has been investigated microscopically in the heavy fermion systems of CeMIn5 and PuMGa5 (M=Co, Rh) by means of nuclear magnetic resonance (NMR). Both systems are known to be relatively high-Tc superconductors among the heavy fermion systems, especially PuCoGa5, which has a Tc=18.5 K almost one order of magnitude larger than for CeCoIn5 ( Tc=2.3 K). Analysis of the Knight shift and spin-lattice relaxation rates suggests XY-type anisotropy in the antiferromagnetic spin fluctuations in the normal states of these unconventional superconductors. Moreover, the 115 superconductors with larger XY-type fluctuations have a higher Tc, compared to the anisotropy of spin fluctuations in the related paramagnetic system UFeGa5 and antiferromagnets UPtGa5, NpCoGa5, NpFeGa5.

Type
Research Article
Copyright
Copyright © Materials Research Society 2010

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

1 Sarrao, J. L. Morales, L. A. Thompson, J. D. Scott, B. L. Stewart, G. R. Wastin, F. Rebizant, J. Boulet, P. Colineau, E. and Lander, G. H. Nature (London) 420, 297 (2002).Google Scholar
2 Wastin, F. Boulet, P. Rebizant, J. Colineau, E. and Lander, G. H. J. Phys.: Condens. Matter 15, S2279 (2003).Google Scholar
3 Petrovic, C. Pagliuso, P. G. Hundley, M. F. Movshovich, R. Sarrao, J. L. Thompson, J. D. Fisk, Z. and Monthoux, P. J. Phys.: Condes. Matter 13, L337 (2001).Google Scholar
4 Petrovic, C. Movshovich, R., Jaime, M. Pagliuso, P. G. Hundley, M. F. Sarrao, J. L. Fisk, Z., and Thompson, J. D. Europhys. Lett 53, 354 (2001).Google Scholar
5 Hegger, H. Petrovic, C. Moshopoulou, E. G. Hundley, M. F. Sarrao, J. L. Fisk, Z. and Thompson, J. D., Phys. Rev. Lett. 84, 4986 (2000).Google Scholar
6 Kohori, Y., Yamato, Y. Iwamoto, Y. Kohara, T. Bauer, E. D. Maple, M. B. and Sarrao, J. L., Phys. Rev. B 64, 134526 (2001).Google Scholar
7 Zheng, G. q. Tanabe, K. Mito, T. Kawasaki, S. Kitaoka, Y. Aoki, D. Haga, Y. and Õnuki, Y., Phys. Rev. Lett. 86, 4664 (2001).Google Scholar
8 Curro, N. J. Simovic, B. Si, Hammel, P. C. Pagliuso, P. G. Sarrao, J. L. Thompson, J. D. and movic, G. B. Martins, Phys. Rev. B 64, 180514(R) (2001).Google Scholar
9 Mito, T. Kawasaki, S. Zheng, G. q. Kawasaki, Y. Ishida, K. Kitaoka, Y. Aoki, D. Haga, Y. and Õnuki, Y., Phys. Rev. B 63, 220507(R) (2001).Google Scholar
10 Curro, N. J. Caldwell, T. Bauer, E. D. Morales, L. A. Graf, M. J. Bang, Y. Balatsky, A. V. Thompson, J. D. and Sarrao, J. L. Nature (London) 434, 622 (2005).Google Scholar
11 Sakai, H. Tokunaga, Y. Fujimoto, T. Kambe, S. Walstedt, R. E. Yasuoka, H. Aoki, D. Homma, Y., Yamamoto, E., Nakamura, A. Shiokawa, Y. Nakajima, K. Arai, Y. Matsuda, T. D. Haga, Y. and Õnuki, Y., J. Phys. Soc. Jpn. 74, 1710 (2005).Google Scholar
12 Ikeda, S. Tokiwa, Y. Matsuda, T. D. Galatanu, A. Yamamoto, E. Nakamura, A. Haga, Y. and Õnuki, Y., Physica B 359-361, 1039 (2005).Google Scholar
13 Aoki, D. Homma, Y. Shiokawa, Y. Sakai, H. Yamamoto, E. Nakamura, A. Haga, Y. Settai, R. and Õnuki, Y., J. Phys. Soc. Jpn. 74, 2323 (2005).Google Scholar
14 Onishi, H. and Hotta, T. New J. Phys. 6, 193 (2004).Google Scholar
15 Kiss, A. and Kuramoto, Y. J. Phys. Soc. Jpn. 75, 034709 (2006).Google Scholar
16 Aoki, D. Haga, Y. Tatsuma, T. D. Tateiwa, N. Ikeda, S. Homma, Y. Sakai, H. Shiokawa, Y.. Yamamoto, E. Nakamura, A. Settai, R. and Õnuki, Y., J. Phys. Soc. Jpn. 76, 063701 (2007).Google Scholar
17 Chudo, H. Sakai, H. Tokunaga, Y. Kambe, S. Aoki, D. Homma, Y. Shiokawa, Y. Haga, Y., Ikeda, S., Matsuda, T. D. Õnuki, Y. and Yasuoka, H. J. Phys. Soc. Jpn. 77, 083702 (2008).Google Scholar
18 Moriya, T. J. Phys. Soc. Jpn. 18, 516 (1963).Google Scholar
19 Kambe, S. Sakai, H. Tokunaga, Y. Fujimoto, T. Kato, H. Walstedt, R.E. Ikeda, S. Matsuda, T. D., Haga, Y. and Õnuki, Y., J. Phys. Soc. Jpn. Suppl. 75, 127 (2006).Google Scholar
20 Sakai, H. Kambe, S. Tokunaga, Y. Fujimoto, T. Walstedt, R. E. Yasuoka, H. Aoki, D. Homma, Y., Yamamoto, E. Nakamura, A. Shiokawa, Y. Nakajima, K. Arai, Y. Matsuda, T. D. Haga, Y. and Õnuki, Y., J. Phys. Chem. Solids 68 2103 (2007).Google Scholar
21 Narath, A. and Weaver, H. T., Phys. Rev. 175, 373 (1968).Google Scholar
22 Moriya, T. and Takimoto, T. J. Phys. Soc. Jpn. 64, 960 (1995).Google Scholar
23 Sakai, H. S. –Baek, H. Brown, S. E. Ronning, F. Bauer, E. D. and Thompson, J. D. submitted to Phys. Rev. B.Google Scholar
24 Kambe, S. Sakai, H., Tokunaga, Y. Fujimoto, T. Walstedt, R. E. Ikeda, S. Aoki, D. Homma, Y., Haga, Y. Shiokawa, Y. and Õnuki, Y., Phys. Rev. B 75 140509(R) (2007).Google Scholar
25 Nakatsuji, S. Yeo, S. Balicas, L. Fisk, Z. Schlottmann, P. Pagliuso, P. G. Moreno, N. O. Sarrao, J. L. and Thompson, J. D. Phys. Rev. Lett. 89, 106402 (2002).Google Scholar
26 Monthoux, P. and Lonzarich, G. Phys.Rev. B 63 054529 (2001).Google Scholar
27 Moriya, T. and Ueda, K. Rep. Prog. Phys. 66, 1299 (2003).Google Scholar
28 Baek, S. H. Sakai, H. Bauer, E. D. Ronning, F. and Thompson, J. D. in preparation preparation.Google Scholar
29 Bauer, E. D. B, Thompson, J. D. Sarrao, J. L. Morales, L. A. Wastin, F. Rebizant, J. Griveau, J. C., Javorsky, P. Boulet, P. Colineau, E. Lander, G.H. and Stewart, G. R. Phys. Rev. Lett. 93, 147005 (2004).Google Scholar