Effect of a transverse magnetic field on resonant magnetization tunneling in high-spin molecules
The recent observation of steps at regular intervals of magnetic field in the hysteresis loops of oriented crystals of the spin-10 molecular magnet Mn12O12(CH3COO)16(H2O)4 has been attributed to resonant tunneling between spin states. Here, we investigate the effect on the relaxation rate of applyin...
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| Veröffentlicht in: | Journal of applied physics 1997-04, Vol.81 (8), p.3978-3980 |
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| container_end_page | 3980 |
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| container_issue | 8 |
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| container_title | Journal of applied physics |
| container_volume | 81 |
| creator | Friedman, Jonathan R. Sarachik, M. P. Hernandez, J. M. Zhang, X. X. Tejada, J. Molins, E. Ziolo, R. |
| description | The recent observation of steps at regular intervals of magnetic field in the hysteresis loops of oriented crystals of the spin-10 molecular magnet Mn12O12(CH3COO)16(H2O)4 has been attributed to resonant tunneling between spin states. Here, we investigate the effect on the relaxation rate of applying the magnetic field at an angle with respect to the easy axis of magnetization. We find that the position of the resonances is independent of the transverse component of the field, and is determined solely by the longitudinal component. On the other hand, a transverse field significantly increases the relaxation rate, both on and off resonance. We discuss classical and quantum mechanical interpretations of this effect. |
| doi_str_mv | 10.1063/1.364912 |
| format | Article |
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P. ; Hernandez, J. M. ; Zhang, X. X. ; Tejada, J. ; Molins, E. ; Ziolo, R.</creator><creatorcontrib>Friedman, Jonathan R. ; Sarachik, M. P. ; Hernandez, J. M. ; Zhang, X. X. ; Tejada, J. ; Molins, E. ; Ziolo, R.</creatorcontrib><description>The recent observation of steps at regular intervals of magnetic field in the hysteresis loops of oriented crystals of the spin-10 molecular magnet Mn12O12(CH3COO)16(H2O)4 has been attributed to resonant tunneling between spin states. Here, we investigate the effect on the relaxation rate of applying the magnetic field at an angle with respect to the easy axis of magnetization. We find that the position of the resonances is independent of the transverse component of the field, and is determined solely by the longitudinal component. On the other hand, a transverse field significantly increases the relaxation rate, both on and off resonance. 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On the other hand, a transverse field significantly increases the relaxation rate, both on and off resonance. We discuss classical and quantum mechanical interpretations of this effect.</description><subject>Anisotropia</subject><subject>Anisotropy</subject><subject>Camps magnètics</subject><subject>Efecte túnel</subject><subject>Magnetic fields</subject><subject>Magnetic properties</subject><subject>Magnetic relaxation</subject><subject>Propietats magnètiques</subject><subject>Quantum theory</subject><subject>Relaxació magnètica</subject><subject>Teoria quàntica</subject><subject>Tunneling (Physics)</subject><issn>0021-8979</issn><issn>1089-7550</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>1997</creationdate><recordtype>article</recordtype><sourceid>XX2</sourceid><recordid>eNpFkM1LAzEQxYMoWKvgn5Cjl62ZzW4-jlLqBxS86Dlms5M2ss2WJBX0r7elFQ_DzJvH7x0eIbfAZsAEv4cZF42G-oxMgCldybZl52TCWA2V0lJfkqucPxkDUFxPyMfCe3SFjp5aWpKN-QtTRrqxq4glOOoDDj0dI02Yx2hj-bN-bAn7d9nFiEOIKxoiXYfVusrb_bUZB3S7AfM1ufB2yHhz2lPy_rh4mz9Xy9enl_nDsnJcyFIBeN7Izkle9w3HVjKrOuGkqlvhhAfWAjgtZKd6y0F1tehQ97btOuYYb3o-JXDMdXnnTEKHydliRhv-xWFqJmsDUiuh98zdiUljzgm92aawsenbADOHNg2YY5v8F0DWZ8I</recordid><startdate>19970415</startdate><enddate>19970415</enddate><creator>Friedman, Jonathan R.</creator><creator>Sarachik, M. 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We find that the position of the resonances is independent of the transverse component of the field, and is determined solely by the longitudinal component. On the other hand, a transverse field significantly increases the relaxation rate, both on and off resonance. We discuss classical and quantum mechanical interpretations of this effect.</abstract><pub>American Institute of Physics</pub><doi>10.1063/1.364912</doi><tpages>3</tpages><oa>free_for_read</oa></addata></record> |
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| ispartof | Journal of applied physics, 1997-04, Vol.81 (8), p.3978-3980 |
| issn | 0021-8979 1089-7550 |
| language | eng |
| recordid | cdi_csuc_recercat_oai_recercat_cat_2072_179869 |
| source | Recercat; AIP Digital Archive |
| subjects | Anisotropia Anisotropy Camps magnètics Efecte túnel Magnetic fields Magnetic properties Magnetic relaxation Propietats magnètiques Quantum theory Relaxació magnètica Teoria quàntica Tunneling (Physics) |
| title | Effect of a transverse magnetic field on resonant magnetization tunneling in high-spin molecules |
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