|
|
Correlation between valence electronic structure and magnetic properties in RCo5 (R= rare earth) intermetallic compound |
Zhi-Qin Xue(薛智琴), Yong-Quan Guo(郭永权) |
North China Electric Power University, School of Energy Power and Mechanical Engineering, Beijing 102206, China |
|
|
Abstract The magnetisms of RCo5 (R=rare earth) intermetallics are systematically studied with the empirical electron theory of solids and molecules (EET). The theoretical moments and Curie temperatures agree well with experimental ones. The calculated results show strong correlations between the valence electronic structure and the magnetic properties in RCo5 intermetallic compounds. The moments of RCo5 intermetallics originate mainly from the 3d electrons of Co atoms and 4f electrons of rare earth, and the s electrons also affect the magnetic moments by the hybridization of d and s electrons. It is found that moment of Co atom at 2c site is higher than that at 3g site due to the fact that the bonding effect between R and Co is associated with an electron transformation from 3d electrons into covalence electrons. In the heavy rare-earth-based RCo5 intermetallics, the contribution to magnetic moment originates from the 3d and 4f electrons. The covalence electrons and lattice electrons also affect the Curie temperature, which is proportional to the average moment along the various bonds.
|
Received: 26 October 2015
Revised: 03 March 2016
Accepted manuscript online:
|
PACS:
|
31.10.+z
|
(Theory of electronic structure, electronic transitions, and chemical binding)
|
|
31.30.-i
|
(Corrections to electronic structure)
|
|
Fund: Project supported by the National Natural Science Foundation of China (Grant No. 11274110). |
Corresponding Authors:
Yong-Quan Guo
E-mail: yqguo@ncepu.edu.cn
|
Cite this article:
Zhi-Qin Xue(薛智琴), Yong-Quan Guo(郭永权) Correlation between valence electronic structure and magnetic properties in RCo5 (R= rare earth) intermetallic compound 2016 Chin. Phys. B 25 063101
|
[1] |
Larson P, Mazin I I and Papaconstantopoulos D A 2003 Phys. Rev. B 67 214405
|
[2] |
Malik S K, Arlinghaus F J and Wallace W E 1977 Phys. Rev. B 16 1242
|
[3] |
Li Z B, Lan J T, Zhang X F, Liu Y L and Li Y F 2015 Chin. Phys. B 24 087501
|
[4] |
Herbst J F and Hector L G 2007 J. Alloys Compd. 188 446
|
[5] |
Han X F, Yang F M, Zeng Z, Zheng Q Q, Wang X F, Jin H M and Sun J Z 1997 Acta Phys. Sin. (Overseas Edition, i.e., Chin. Phys.) 6 697
|
[6] |
Sankar S G, Rao V U S, Segal E, Wallace W E, Frederick W G D and Garrett H J 1975 Phys. Rev. B 11 435
|
[7] |
Rao V U S and Greedan J E 1973 J. Solid State Chem. 6 387
|
[8] |
Chen T L and Wang Q 2000 Commun. Theor. Phys. 34 6
|
[9] |
Zhao T S, Jin H M, Guo G H, Han X F and Chen H 1991 Phys. Rev. B 43 8593
|
[10] |
Tadaei I and Hideaki I 2005 J. Appl. Phys. 97 10A313
|
[11] |
Hector L G and Herbst J F 2003 Appl. Phys. Lett. 82 1042
|
[12] |
Liebs M, Hummler K, Beuerle T, Ubele P and Fahnle M 1995 J. Magn. Magn. Mater. 140-144 851
|
[13] |
Miletić G I and Blažina Ž 2007 J. Solid State Chem. 180 604
|
[14] |
Miletić G I and Blažina Ž 2009 J. Magn. Magn. Mater. 321 3888
|
[15] |
Richter M, Oppeneer P M, Eschrig H and Johansson B 1992 Phys. Rev. B 46 13919
|
[16] |
Beloritzky E, Fremy M A, Gavigan J P, Givord D and Li H S 1987 J. Appl. Phys. 61 3971
|
[17] |
Hu B P, Li H S, Gavigan J P and Coey J M D 1990 Phys. Rev. B 41 2221
|
[18] |
Kokorina E E, Medvedev M V and Nekrasov I A 2010 International Conference on Magnetic Materials, October 25-29, 2010, Kolkata, India, p. 75
|
[19] |
Yu R H 1978 Chin. Sci. Bull. 23 217 (in Chinese)
|
[20] |
Cao Z X 2014 Chin. Phys. B 23 063102
|
[21] |
Zhang J F, Zhang M, Zhao Y W, Zhang H Y, Zhao L N and Luo Y H 2015 Chin. Phys. B 24 067101
|
[22] |
Fang S S and Qiao H X 2015 Chin. Phys. B 24 083101
|
[23] |
Guo Y Q, Yu R H, Zhang R L, Zhang X H and Tao K 1998 J. Phys. Chem. B 102 9
|
[24] |
Wu W X, Guo Y Q, Li A H and Li W 2008 Acta Phys. Sin. 57 2486 (in Chinese)
|
[25] |
Meng Z H, Guo Y Q, Li J B and Wang Y 2012 Acta Phys. Sin. 61 107101 (in Chinese)
|
[26] |
Lin C, Yin G L and Zhao Y Q 2015 Comp. Mater. Sci. 101 168
|
[27] |
Shen J, Qian P and Chen N X 2004 J. Phys. Chem. Solids 65 1307
|
[28] |
Givord D, Deportes J, Schweizer J and Tasset F 1976 IEEE. Trans. Magn. 12 1000
|
No Suggested Reading articles found! |
|
|
Viewed |
|
|
|
Full text
|
|
|
|
|
Abstract
|
|
|
|
|
Cited |
|
|
|
|
Altmetric
|
blogs
Facebook pages
Wikipedia page
Google+ users
|
Online attention
Altmetric calculates a score based on the online attention an article receives. Each coloured thread in the circle represents a different type of online attention. The number in the centre is the Altmetric score. Social media and mainstream news media are the main sources that calculate the score. Reference managers such as Mendeley are also tracked but do not contribute to the score. Older articles often score higher because they have had more time to get noticed. To account for this, Altmetric has included the context data for other articles of a similar age.
View more on Altmetrics
|
|
|