Density functional studies of single molecule magnets

被引:81
作者
Kortus, J
Pederson, MR
Baruah, T
Bernstein, N
Hellberg, CS
机构
[1] Max Planck Inst Festkorperforsch, D-70569 Stuttgart, Germany
[2] USN, Res Lab, Ctr Computat Mat Sci, Washington, DC 20375 USA
[3] Georgetown Univ, Dept Phys, Washington, DC 20057 USA
关键词
nanomagnets; single-molecule magnets; magnetic anisotropy; density-functional calculations; spin-orbit coupling;
D O I
10.1016/S0277-5387(03)00160-8
中图分类号
O61 [无机化学];
学科分类号
070301 ; 081704 ;
摘要
A method for the calculation of the second-order anisotropy parameters of single molecular magnets from the single particle orbitals is reviewed. We combine this method with density functional calculations to predict the magnetic anisotropy parameters of several single molecule magnets: Mn-12-acetate, Mn-10, CO4, Fe-4, Cr, and V-15. Comparison with available experimental data shows that it is possible to predict these values quite accurately from density functional wavefunctions. (C) 2003 Elsevier Science Ltd. All rights reserved.
引用
收藏
页码:1871 / 1876
页数:6
相关论文
共 36 条
[1]   Slow magnetic relaxation of [Et3NH]2[Mn(CH3CN)4(H2O)2] [Mn10O4(biphen)4Br12] (biphen=2,2′-biphenoxide) at very low temperature [J].
Barra, AL ;
Caneschi, A ;
Gatteschi, D ;
Goldberg, DP ;
Sessoli, R .
JOURNAL OF SOLID STATE CHEMISTRY, 1999, 145 (02) :484-487
[2]   Electronic structure and magnetic anisotropy of the [Co4(hmp)4(CH3OH)4Cl4] molecule [J].
Baruah, T ;
Pederson, MR .
CHEMICAL PHYSICS LETTERS, 2002, 360 (1-2) :144-148
[3]   3-COORDINATED TRANSITION-METAL COMPOUNDS .3. ELECTRON-SPIN RESONANCE STUDIES ON TRIS(BISTRIMETHYLSILYLAMIDO)DERIVATIVES OF TITANIUM, CHROMIUM, AND IRON [J].
BRADLEY, DC ;
COPPERTH.RG ;
COTTON, SA ;
SALES, KD ;
GIBSON, JF .
JOURNAL OF THE CHEMICAL SOCIETY-DALTON TRANSACTIONS, 1973, (02) :191-194
[4]   Vibrational frequencies and intensities of small molecules: All-electron, pseudopotential, and mixed-potential methodologies [J].
Briley, A ;
Pederson, MR ;
Jackson, KA ;
Patton, DC ;
Porezag, DV .
PHYSICAL REVIEW B, 1998, 58 (04) :1786-1793
[5]   Forces in molecules [J].
Feynman, RP .
PHYSICAL REVIEW, 1939, 56 (04) :340-343
[6]   Macroscopic measurement of resonant magnetization tunneling in high-spin molecules [J].
Friedman, JR ;
Sarachik, MP ;
Tejada, J ;
Ziolo, R .
PHYSICAL REVIEW LETTERS, 1996, 76 (20) :3830-3833
[7]  
HELLMANN H, 1937, EINFUHRUNG QUANTENTH
[8]   Magnetic interactions and electronic states in superconducting and nonsuperconducting ruthenocuprates [J].
Hirai, Y ;
Zivkovic, I ;
Frazer, BH ;
Reginelli, A ;
Perfetti, L ;
Ariosa, D ;
Margaritondo, G ;
Prester, M ;
Drobac, D ;
Jiang, DT ;
Hu, Y ;
Sham, TK ;
Felner, I ;
Pederson, M ;
Onellion, M .
PHYSICAL REVIEW B, 2002, 65 (05) :544171-544176
[9]   INHOMOGENEOUS ELECTRON-GAS [J].
RAJAGOPAL, AK ;
CALLAWAY, J .
PHYSICAL REVIEW B, 1973, 7 (05) :1912-1919
[10]   ACCURATE FORCES IN A LOCAL-ORBITAL APPROACH TO THE LOCAL-DENSITY APPROXIMATION [J].
JACKSON, K ;
PEDERSON, MR .
PHYSICAL REVIEW B, 1990, 42 (06) :3276-3281