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Photo-Induced Relaxation of Magnetization in Molecular Magnet

100%

Zieliński P., Tracz P., Podgajny R., Pełka R., Bałanda M., Wasiutyński T., Sieklucka B.

Acta Physica Polonica A

2007

vol. 112

issue S

S-183-S-188

The experimental study of photo-induced magnetization of hybrid molecular magnet containing cobalt(II) and tungsten(V) magnetic centers bridged by 4,4'-bpy and CN^- is presented. The observed increase in magnetization rate is attributed to the defects due to inter-valence transfer between Co^{II}W^V↔ Co^{III}W^{IV}. The time evolution of magnetization is parameterized by the power law rather than exponential function.

Field-Induced Slow Magnetic Relaxation in Mn₉W₆ Cluster-Based Compound

100%

Konieczny P., Pełka R., Chorazy S., Podgajny R., Sieklucka B., Wasiutyński T.

Acta Physica Polonica A

2017

vol. 131

issue 4

884-886

Magnetic measurements of a three-dimensional (3D) molecular magnet built of Mn₉[W(CN)₈]₆ clusters have been carried out to study its static and dynamic properties. Measurements of ac susceptibility in the presence of static magnetic field revealed slow magnetic relaxations. It was found that for the 120 Hz wave frequency the optimal static field which maximizes the imaginary component of the ac susceptibility is about 500 Oe.

Magnetic Systems at Criticality: Different Signatures of Scaling

68%

Pełka R., Konieczny P., Fitta M., Czapla M., Zieliński P., Bałanda M., Wasiutyński T., Miyazaki Y., Inaba A., Pinkowicz D., Sieklucka B.

Acta Physica Polonica A

2013

vol. 124

issue 6

977-989

Different aspects of critical behaviour of magnetic materials are presented and discussed. The scaling ideas are shown to arise in the context of purely magnetic properties as well as in that of thermal properties as demonstrated by magnetocaloric effect or combined scaling of excess entropy and order parameter. Two non-standard approaches to scaling phenomena are described. The presented concepts are exemplified by experimental data gathered on four representatives of molecular magnets.

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3 Acta Physica Polonica A

1 2017

1 2013

1 2007

3 Pełka R.

3 Sieklucka B.

3 Wasiutyński T.

2 Bałanda M.

2 Konieczny P.

2 Podgajny R.

2 Zieliński P.

1 Chorazy S.

1 Czapla M.

1 Fitta M.

1 Inaba A.

1 Miyazaki Y.

1 Pinkowicz D.

1 Tracz P.

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Photo-Induced Relaxation of Magnetization in Molecular Magnet

Field-Induced Slow Magnetic Relaxation in Mn₉W₆ Cluster-Based Compound

Magnetic Systems at Criticality: Different Signatures of Scaling