Magneto-optical interactions in single-molecule magnets: Low-temperature photon-induced demagnetization

被引：16

作者：

Donnio, B. ^{[1
]}

Riviere, E. ^{[2
]}

Terazzi, E. ^{[3
]}

Voirin, E. ^{[1
]}

Aronica, C. ^{[4
]}

Chastanet, G. ^{[4
]}

Luneau, D. ^{[4
]}

Rogez, G. ^{[1
]}

Scheurer, F. ^{[1
]}

Joly, L. ^{[1
]}

Kappler, J. -P. ^{[1
]}

Gallani, J. -L. ^{[1
]}

机构：

[1] IPCMS, CNRS, UdS, UMR7504, F-67034 Strasbourg 2, France

[2] Univ Paris Sud, CNRS, ICMMO, Equipe Chim Inorgan,UMR8182, F-91405 Orsay, France

[3] Univ Geneva, Dept Inorgan Analyt & Appl Chem, CH-1211 Geneva 4, Switzerland

[4] Univ Lyon 1, Lab Multimat & Interfaces, UMR5615, F-69622 Villeurbanne, France

来源：

SOLID STATE SCIENCES | 2010年 / 12卷 / 08期

关键词：

Single-molecule magnet; Photomagnetism; XMCD; Phonons; MN-12; MAGNETIZATION; TRANSPORT; BEHAVIOR;

D O I：

10.1016/j.solidstatesciences.2010.06.003

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

We show that the irradiation of SMM molecules at optical wavelengths can drive an increase or a decrease of the magnetic moment of a SMM, even though the energy of the photons does not correspond to a precise electronic or spin transition, the light pulse triggering a phonon-assisted spin transition. The process is sensitive to the power of the incident light. This result most probably explains why it has been so far impossible to observe the opening of the hysteresis loop on thin films of SMM with the XMCD technique. The consequences of these observations are manifold: they bring a means of controlling molecular magnets, open prospects in the field of quantum computing, and may enable the realization of coherent microwave sources through stimulated superradiance. (C) 2010 Elsevier Masson SAS. All rights reserved.

引用

页码：1307 / 1313

页数：7

共 43 条

[1] Phonon-induced relaxation of a two-state system in solids [J].

Albert, Jaroslav ;

Chudnovsky, E. M. ;

Garanin, D. A. .

PHYSICAL REVIEW B, 2006, 74 (11)

[2]

[Anonymous], 2001, ELEMENTS MODERN XRAY

[3] A nonanuclear dysprosium (III)-copper(II) complex exhibiting single-molecule magnet behavior with very slow zero-field relaxation [J].

Aronica, Christophe ;

Pilet, Guillaume ;

Chastanet, Guillaume ;

Wernsdorfer, Wolfgang ;

Jacquot, Jean-Francois ;

Luneau, Dominique .

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 2006, 45 (28) :4659-4662

[4] Magneto-structural correlation in the Jahn-Teller isomers of Mn12 [J].

Awaga, Kunio ;

Suzuki, Yoshihito ;

Hachisuka, Hidekazu ;

Takeda, Keiji .

JOURNAL OF MATERIALS CHEMISTRY, 2006, 16 (26) :2516-2521

[5] Radiation- and phonon-bottleneck-induced tunneling in the Fe8 single-molecule magnet [J].

Bal, M. ;

Friedman, Jonathan R. ;

Chen, W. ;

Tuominen, M. T. ;

Beedle, C. C. ;

Rumberger, E. M. ;

Hendrickson, D. N. .

EPL, 2008, 82 (01)

[6]

Beaurepaire E., 2010, Magnetism and synchrotron radiation

[7] Molecular spintronics using single-molecule magnets [J].

Bogani, Lapo ;

Wernsdorfer, Wolfgang .

NATURE MATERIALS, 2008, 7 (03) :179-186

[8] A quantum evaporation effect [J].

Boosé, D ;

Bardou, F .

EUROPHYSICS LETTERS, 2001, 53 (01) :1-7

[9] ALTERNATING-CURRENT SUSCEPTIBILITY, HIGH-FIELD MAGNETIZATION, AND MILLIMETER BAND EPR EVIDENCE FOR A GROUND S = 10 STATE IN [MN12O12(CH3COO)16(H2O)4].2CH3COOH.4H2O [J].

CANESCHI, A ;

GATTESCHI, D ;

SESSOLI, R ;

BARRA, AL ;

BRUNEL, LC ;

GUILLOT, M .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1991, 113 (15) :5873-5874

[10] 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

← 1 2 3 4 5 →