Resonant photon absorption in the low-spin molecule V15

被引:42
作者
Wernsdorfer, W
Müller, A
Mailly, D
Barbara, B
机构
[1] UJF, CNRS, Lab Louis Neel, F-38042 Grenoble 9, France
[2] Univ Bielefeld, Fac Chem, D-3300501 Bielefeld, Germany
[3] CNRS, Lab Photon & Nanostruct, F-91460 Marcoussis, France
来源
EUROPHYSICS LETTERS | 2004年 / 66卷 / 06期
关键词
D O I
10.1209/epl/i2004-10033-9
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
Resonant photon absorption in the GHz range was observed via low-temperature micro-SQUID magnetization measurements of the spin ground state S = 1/2 of the molecular complex V-15. A simple single-molecule interpretation is proposed. The line width essentially results from intra-molecular hyperfine interaction. The results point out that observing Rabi oscillations in molecular nanomagnets requires well-isolated low-spin systems and high radiation power.
引用
收藏
页码:861 / 867
页数:7
相关论文
共 32 条
[1]  
Abragam A., 1970, ELECT PARAMAGNETIC R
[2]  
AJIRO Y, 2002, P FRENCH JAP S QUANT, P80
[3]   Microwave absorption and magnetization tunneling in Mn12-acetate molecular clusters -: art. no. 220402 [J].
Amigó, R ;
Hernandez, JM ;
García-Santiago, A ;
Tejada, J .
PHYSICAL REVIEW B, 2003, 67 (22)
[4]   Half-integer-spin small molecule magnet exhibiting resonant magnetization tunneling [J].
Aubin, SMJ ;
Dilley, NR ;
Wemple, MW ;
Maple, NB ;
Christou, G ;
Hendrickson, DN .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1998, 120 (04) :839-840
[5]  
Barbara B, 2002, PROG THEOR PHYS SUPP, P357, DOI 10.1143/PTPS.145.357
[6]   Crossover between thermally assisted and pure quantum tunneling in molecular magnet Mn12-acetate [J].
Bokacheva, L ;
Kent, AD ;
Walters, MA .
PHYSICAL REVIEW LETTERS, 2000, 85 (22) :4803-4806
[7]   Low-energy spin excitations in the molecular magnetic cluster V15 [J].
Chaboussant, G ;
Basler, R ;
Sieber, A ;
Ochsenbein, ST ;
Desmedt, A ;
Lechner, RE ;
Telling, MTF ;
Kögerler, P ;
Müller, A ;
Güdel, HU .
EUROPHYSICS LETTERS, 2002, 59 (02) :291-297
[8]   Butterfly hysteresis loop and dissipative spilt reversal in the S = 1/2, V15 molecular complex [J].
Chiorescu, I ;
Wernsdorfer, W ;
Müller, A ;
Bögge, H ;
Barbara, B .
PHYSICAL REVIEW LETTERS, 2000, 84 (15) :3454-3457
[9]   Adiabatic Landau-Zener-Stuckelberg transition with or without dissipation in the low-spin molecular system V15 -: art. no. 020402 [J].
Chiorescu, I ;
Wernsdorfer, W ;
Müller, A ;
Miyashita, S ;
Barbara, B .
PHYSICAL REVIEW B, 2003, 67 (02)
[10]   Coherent quantum dynamics of a superconducting flux qubit [J].
Chiorescu, I ;
Nakamura, Y ;
Harmans, CJPM ;
Mooij, JE .
SCIENCE, 2003, 299 (5614) :1869-1871