Staff
Head of group
Prof. Dr. hab. Jan Martinek
phone: +48 61 86 95 223, room: 302
e-mail: jan.martinek@ifmpan.poznan.pl
The group
Dr. hab. Maria Augustyniak-Jabłokow, Prof. IFM PAN
phone: +48 61 86 95 205, room: 207, 3
Dr. Piotr Busz
phone: +48 61 86 95 202, room: 201
e-mail: piotr.busz@ifmpan.poznan.pl
Dr. Eng. Roman Strzelczyk
phone: +48 61 86 95 208,
Dr. Eng. Damian Tomaszewski
phone: +48 61 86 95 202, room: 201
Research
- Niejednorodne materiały nadprzewodzące.
- Kompleksy paramagnetyczne z degeneracją orbitalną stanu podstawowego.
- Mezoskopowe układy przewodzące.
- Centra paramagnetyczne w graficie i fullerenie.
- Przewodniki superjonowe, relaksory, szkła protonowe, ferroelsatyki i ferroleastyki
- Przemiany fazowe badane metodami elektronowego rezonansu paramagnetycznego i spektroskopii dielektrycznej.
- Badania rezonansu spinowego w substancji węglowej i nadprzewodnikach wysokotemperaturowych. Poszukiwanie efektów rozmiarowych i wzbudzeń paramagnetycznych.
- Transport ładunku; zjawiska stochastyczne i nieliniowe w szybkoprotonowych przewodnikach.
- Spinowo spolaryzowany transport w kropkach kwantowych i układach molekularnych.
- Kontrolowana destrukcja kryształów z rodziny TGS przez ciecz przenoszącą ciśnienie hydrostatyczne do 2.5 GPa.
Equipment
- Oscyloskop LeCroy WaveSurfer 422, do 200MHz.
- Magnetometer "MagLab 2000 System"
- Urządzenie do obrazowania rozkładu pól magnetycznych
Cooperation
- Sciences Chemiques de Rennes, Universite de Rennes I, Campus de Beaulieu, Batiment 10, Avenue du General Leclerc, 35042 Rennes Cede, Francja
- Laboratoire Materiaux, Organisation et Proprietes, associe au CNRS, Case 151, Faculte des Sciences et Techniques, F-13397 Marseille Cedex 20, Francja
- Department of Inorganic Chemistry, Faculty of Natural Sciences, Comenius University, 842 15 Bratysława, Słowacja
- Institute of Crystallography RAS, Leninsky Prospect 59, 117333 Moskwa, Rosja
- F. Ioffe Physico-Technical Institute RAS, Polytekhnicheskaya Street 26, 194021 St Petersburg, Rosja
Publications
Publications: 2015, 2013, 2012, 2011, 2010, 2009, 2008, 2007, 2006, 2005
2015
- Stokes−Einstein−Nernst Relation in Dilute Electrolyte Solutions of Lithium Perchlorate in Polyethylene Glycols (200, 300, 400, and 600)J. Chem. Eng. Data 60, 3588–3593 (2015)
2013
- Magnetic properties of epitaxial Fe/(Ga,Mn)As HybridsActa Physica Polonica A 124, 873 (2013)
2012
- Correlation Analysis of Atomic and Single-Molecule Junction ConductanceP. MakkACS NANO 6, 3411-3423, 2012
- Tunable Kondo Effect in a Double Quantum Dot Coupled to Ferromagnetic ContactsPhysical Review Letters 108, 166605, 2012
- Influence of heating time and pressure treatment of potato starch on the generation of radicals: EPR studiesCarbohzdrate Polymers 89, 54-60, 2012
2011
- Ferromagnetic resonance and voltage-induced transport in normal metal-ferromagnet-superconductor trilayersPhys. Rev. B 84, 104420 (2011)
- Coexistence of the Kondo effect and a ferromagnetic phase in magnetic tunnel junctionsPhysical Review B 83, 174437, 2011
2010
- Spin localization in ACF detected with EPR.Current Topics in Biophysics 33 (suppl. A) 109-112 (2010)
- Off-resonance effects in two-dimensional exchange NMR at zero-field.Solid State Nuclear Magnetic Resonance 37, 33-35, 2010
- EPR and magnetism of the nanostructured natural carbonaceous material shungite.Physics and Chemistry of Minerals 37, 237-247, 2010
- Regular atomic narrowing of Ni, Fe, and V nanowires resolved by two-dimensional correlation analysis.Physical Review Letters, 105, 266805 (2010)
- Two-impurity Anderson model revisited: Competition between Kondo effect and reservoir-mediated superexchange in double quantum dots.Physical Review B 81, 121311 (2010)
- Low temperature STM/STS, standard AFM and XPS of local MgBx Phases.Acta Physica Polonica A, Vol. 118 (2010), 417-419
- Current-Voltage charateristics of nanowires formed at the Co-Ge99.99Ga0.01 interface.Acta Physica Polonica A 118, 375-378, 2010
- Zero-Bias Anomaly in Magnetic Tunnel JunctionsActa Physica Polonica A 118, 316 (2010)
2009
- Inelastic cotunneling mediated singlet-triplet transition in carbon nanotubes.Physical Review B 80, 033408 (2009)
- Superconducting properties of an NbN-SiO2 disordered system obtained by ammonolysis of NbN-SiO2 sol-gel derived coatings.Journal of Non-Crystalline of Solids 354, 4345-4348, 2009
- Amphiphilic paramagnetic neutral gold dithiolene complexes.Dalton Transactions, 3052-3061, 2009
- Correlation histograms in conductance measurements of nanowires formed at semiconductor interfaces.Acta Physica Polonica A, Vol. 115, No. 1, 384-386, 2009
- Cotunneling transport at singlet-triplet transition in carbon nanotube quantum dots.Acta Physica Polonica A, Vol. 115, No. 1, 299-302, 2009
2008
- Manifestation of Berry’s phase in nuclear quadrupole resonance spectra of rotating powder samples.Zeitschrift fur Naturforschung 63a, 81-87, 2008
- Effect of lattice compression on g-factor in graphite.Solid State Communications 148, 148-150, 2008
- Exchange interactions and electron delocalization in the mixed-valence cluster V4IVV2VO7(OC2H5)12.Inorganic Chemistry 47, 322-332, 2008
- Magnetically modulated microwave absorption study of superconducting MgB2 regions.Applied Magnetic Resonance 34, 157-162, 2008
- Delocalization of the Cu2+ unpaired electron on the next nearest ligands in Sr2Pd0.99Cu0.01O3 ceramics.Acta Physica Polonica A, Vol. 114, No. 1, 197-201, 2008
- Microwave absorption study on (Bi, PB)-Sr-Ca-Cu-O granular superconductors.Acta Physica Polonica A, Vol. 114, No. 1, 253-256, 2008
- The evolution of superconducting phase MgBx.Acta Physica Polonica A, Vol. 114, No. 1, 179-184, 2008
2007
- Effect of magnons on the 0-π transition in a superconductor / half –metallic ferromagnet / superconductor junction.Physica C 463-465, 198-201, 2007
- Supercurrnet pumping by ferromagnetic resonance in ferromagnetic Josephson junctions.Physica C 463-465, 989-992, 2007
- Determination of the electric field gradient asymmetry from 2D nutation NQR spectra of 75As nuclei in oriented samples of As2Se3 semiconductor.Solid State Nuclear Magnetic Resonance 31, 119-123, 2007
- Supercurrent pumping in Josephson junction with half-metalic ferrmagnet.Physical Review Letters 99, 057003 (2007).
- Kondo quantum dot coupled to ferromagnetic leads: Numerical renormalization group study.Physical Review B 76, 045321 (2007)
- Determination of the electric field gradient asymmetry from Berry’s phase in NQR of powder samples.Journal of Molecular Structure 830, 131-138, 2007
- Indirect exchange interaction between two local spins embedded in an Aharonov-Bohm RingMagnetism and Magnetic Materials 310(2), 1142 (2007)
- Kondo effect in single-molecule spintronics devices.Journal of Magnetism and Magnetic Materials 310 (2), e343 (2007)
- EPR study of water induced decomposition of the SrCuO2 and Sr2CuO3 ceramics surface. The role of carbon dioxide.Acta Physica Polonica A Vol. 112 Suplement, 143-151, 2007
2006
- Paramagnetic resonance of Shungite – a natural nano-structured carbonaceous material.physica status solidi (b) 243, No. 8, R66-R68, 2006
- Frequency-dependent current noise through quantum-dot spin valves.Physical Review B 74, 075328, 2006
- Two-dimensional nutation NQR broad-line spectra in oriented samples.Zeitschrift Fűr Naturforschung 61a, 499-504, 2006
- Effect of temperature and high pressure on Mn2+ EPR spectra in K3H(SO4)2 fast-proton conductor.Phase Transitions Vol. 79, No. 6-7, 569-575, 2006
- EPR discovery of a new pressure-induced low-spin phase in (2Me-5Et-PyH)[Fe(Th-5Cl-Sa)2].Acta Physica Polonica A, Vol. 110, No. 1, 81-95, 2006
2005
- Electron spin resonance of localized copper states in Sr1-xAxCuO2 ceramics (A=Li+, K+, La3+; x≤0. 15)”.Physics of the Solid State Vol. 47, No. 8, 2005, 1540-1543
- Tunnel magnetoresistance of quantum dots coupled to ferromagnetic leads in the sequential and cotunneling regimes.Physical Review B 72, 115334-1 do 115334-13, 2005
- Gate-controlled spin splitting in quantum dots with ferromagnetic leads in the Kondo regime.Physical Review B 72, 121302(R)-1 do 121302(R)-4, 2005
- Zero-bias anomaly in cotunneling transport through quantum-dot spin valves.Physical Review B 72, 113301-1 do 113301-4, 2005
- EPR study of the magnetic states of a mixed-valence VIV4 VV2 alkoxypolyoxovanadium cluster.New Journal of Chemistry 29, 1064-1071, 2005
- Two-dimensional exchange 35Cl NQR spectroscopy of hexachloroethane.Journal of Molecular Structure 743, 2005, 53-57
- The origin of EPR signal in SrCuO2 ceramics.Acta Physica Polonica A, Vol. 108, No. 2, 2005, 345-351
- Spin transition diagram of (2Me-5Et-PyH)[Fe9Th-5Cl-Sa)2] studied by EPR.Acta Physica Polonica A, Vol. 108, No. 2, 2005, 291-296
- Intramolecular and lattice dynamics in VIV6-2VVn(OCH3)12 crystal.Acta Physica Polonica A, Vol. 108, No. 2, 2005, 271-281
- Multidimensional NQR spectroscopy - a new tool in studies of molecular dynamics.Acta Physica Polonica A, Vol. 108, No. 1, 2005, 61-72