Wyniki wyszukiwania dla: MAGNETIC FRUSTRATION

• JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS

  Czasopisma

  ISSN: 0304-8853 , eISSN: 1873-4766

• Nanometer structural columns and frustration of magnetic ordering inNb12O29

  Publikacja

  • E. Andersen
  • T. Klimczuk
  • V. Miller
  • H. Zandbergen
  • R. Cava
  • T. Klimczuk

  - PHYSICAL REVIEW B - Rok 2005

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• Nanometer structural columns and frustration of magnetic ordering in Nb12O29

  Publikacja

  • E. Anderson
  • T. Klimczuk
  • V. L. Miller
  • H. Zandbergen
  • R. J. Cava

  - Rok 2005

  Dyskutowana jest synteza i właściwości magnetyczne tlenku niobu Nb12O29. Polimorfizm Nb12O29 przejawia się występowaniem dwóch faz: jednoskośnej i ortorombowej. Pomiar podatności magnetycznej pokazuje, że faza jednoskośna wykazuje antyferromagnetyczne przejście ok. 12K.

• IEEE TRANSACTIONS ON MAGNETICS

  Czasopisma

  ISSN: 0018-9464 , eISSN: 1941-0069

• MAGNETIC RESONANCE IN CHEMISTRY

  Czasopisma

  ISSN: 0749-1581 , eISSN: 1097-458X

• Magnetic instrumentation and other applications of magnets in NOTES

  Publikacja

  • J. Kobiela
  • S. Grymek
  • M. Wojanowska
  • M. Łubniewski
  • W. Makarewicz
  • S. Dobrowolski
  • A. Łachiński
  • Z. Śledziński

  - Wideochirurgia i Inne Techniki Maloinwazyjne - Rok 2012

  Modern surgery is developing towards a minimally invasive approach. To minimize the trauma the number of ports is either limited as in single incision laparoscopic procedures or ports are introduced through natural orifices as in nat- ural orifice translumenal endoscopic surgery (NOTES). To provide surgeons with appropriate instrumentation novel technologies are employed involving magnets. This article summarizes the theoretical...

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• Magnetic Resonance

  Czasopisma

  ISSN: 2699-0059 , eISSN: 2699-0016

• Marcin Perzanowski dr inż.

  Osoby

  Hello, I work in the Department of Magnatic Materials and Nanostructures in the Institute of Nuclear Physics Polish Academy of Sciences in Kraków, Poland. My current research is focused on: (1) exchange bias in multilayers and nanostructures, (2) supermagnetic effects in low-dimensional materials, (3) perpendicular magnetic anisotropy in thin films and nanostructures. Collaborations, comments, and suggestions are welcomed! If...

• Spectroscopic and magnetic studies of highly dispersible superparamagnetic silica coated magnetite nanoparticles

  Publikacja

  • K. Tadyszak
  • A. Kertmen
  • E. Coy
  • R. Andruszkiewicz
  • S. Milewski
  • I. Kardava
  • B. Scheibe
  • S. Jurga
  • K. Chybczyńska

  - JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS - Rok 2017

  Superparamagnetic behavior in aqueously well dispersible magnetite core-shell Fe3O4@SiO2 nanoparticles is presented. The magnetic properties of core-shell nanoparticles were measured with use of the DC, AC magnetometry and EPR spectroscopy. Particles were characterized by HR-TEM and Raman spectroscopy, showing a crystalline magnetic core of 11.5 ± 0.12 nm and an amorphous silica shell of 22 ± 1.5 nm in thickness. The DC, AC magnetic...

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• Influence of proton irradiation on the magnetic properties of two-dimensional Ni(II) molecular magnet

  Publikacja

  • M. Perzanowski
  • D. Czernia
  • P. Konieczny
  • E. Juszyńska-Gałązka
  • J. Lekki

  - Scientific Reports - Rok 2023

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• Function and Frustration of Multi-Drug ABC Exporter Protein and Design of Model Proteins for Drug Delivery Using Protein Hydration Thermodynamics

  Publikacja

  • D. Urry
  • K. Urry
  • W. Szaflarski
  • M. Nowicki
  • M. Zabel

  - CURRENT PHARMACEUTICAL DESIGN - Rok 2009

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• Magnetic Resonance Insights

  Czasopisma

  ISSN: 1178-623X

• Magnetic Resonance in Solids

  Czasopisma

  ISSN: 2072-5981

• MAGNETIC RESONANCE IN MEDICINE

  Czasopisma

  ISSN: 0740-3194 , eISSN: 1522-2594

• APPLIED MAGNETIC RESONANCE

  Czasopisma

  ISSN: 0937-9347 , eISSN: 1613-7507

• Journal of Magnetics

  Czasopisma

  ISSN: 1226-1750 , eISSN: 2233-6656

• Magnetic disturbances caused by magnetic contamination of plastics

  Publikacja

  • K. Jakubiuk
  • M. Wołoszyn
  • M. Chomnicki
  • J. Łubkowski

  - Przegląd Elektrotechniczny - Rok 2015

  In the study of low magnetic fields precision magnetometers working in a differential system are used. Two optically pumped magnetometers working in a differential system allow for precise measuring of disturbances in the magnetic field. In order to attain high accuracy of magnetic field measurement, it is necessary to use appropriate materials for the construction of a magnetometric system, particularly of those located closely...

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• CONCEPTS IN MAGNETIC RESONANCE PART B-MAGNETIC RESONANCE ENGINEERING

  Czasopisma

  ISSN: 1552-5031 , eISSN: 1552-504X

• The influence of a strong external magnetic field from a permanent magnet on a measurement accuracy of an inductive watt-hour meter

  Publikacja

  • E. Pawłowski

  - Przegląd Elektrotechniczny - Rok 2016

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• First-order magnetic transition in single-crystallineCaFe2As2detected byA75snuclear magnetic resonance

  Publikacja

  • S. Baek
  • N. Curro
  • T. Klimczuk
  • E. Bauer
  • F. Ronning
  • J. Thompson
  • T. Klimczuk

  - PHYSICAL REVIEW B - Rok 2009

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• Magnetic Silica Nanotubes: Synthesis, Drug Release, and Feasibility for Magnetic Hyperthermia

  Publikacja

  • X. Chen
  • R. Klingeler
  • M. Kath
  • A. El
  • K. Cendrowski
  • R. Kalenczuk
  • E. Borowiak-Palen
  • E. Mijowska

  - ACS Applied Materials & Interfaces - Rok 2012

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• CONCEPTS IN MAGNETIC RESONANCE PART A

  Czasopisma

  ISSN: 1546-6086 , eISSN: 1552-5023

• Magnetic Resonance in Medical Sciences

  Czasopisma

  ISSN: 1347-3182 , eISSN: 1880-2206

• Topics in Magnetic Resonance Imaging

  Czasopisma

  ISSN: 0899-3459

• JOURNAL OF MAGNETIC RESONANCE IMAGING

  Czasopisma

  ISSN: 1053-1807 , eISSN: 1522-2586

• JOURNAL OF CARDIOVASCULAR MAGNETIC RESONANCE

  Czasopisma

  ISSN: 1097-6647 , eISSN: 1532-429X

• IEEE Magnetics Letters

  Czasopisma

  ISSN: 1949-307X

• Enhancement of the Magnetic Coupling in Exfoliated CrCl 3 Crystals Observed by Low‐Temperature Magnetic Force Microscopy and X‐ray Magnetic Circular Dichroism

  Publikacja

  • M. Serri
  • G. Cucinotta
  • L. Poggini
  • G. Serrano
  • P. Sainctavit
  • J. Strychalska-Nowak
  • A. Politano
  • F. Bonaccorso
  • A. Caneschi
  • R. J. Cava... i 5 innych

  - ADVANCED MATERIALS - Rok 2020

  Magnetic crystals formed by 2D layers interacting by weak van der Waals forces are currently a hot research topic. When these crystals are thinned to nanometric size, they can manifest strikingly different magnetic behavior compared to the bulk form. This can be the result of, for example, quantum electronic confinement effects, the presence of defects, or pinning of the crystallographic structure in metastable phases induced by...

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• Insight into (Electro)magnetic Interactions within Facet-Engineered BaFe12O19/TiO2 Magnetic Photocatalysts

  Publikacja

  • S. Dudziak
  • C. Gómez-Polo
  • J. Karczewski
  • K. Nikiforow
  • A. Zielińska-Jurek

  - ACS Applied Materials & Interfaces - Rok 2023

  A series of facet-engineered TiO2/BaFe12O19 composites were synthesized through hydrothermal growth of both phases and subsequent deposition of the different, faceted TiO2 nanoparticles onto BaFe12O19 microplates. The well-defined geometry of the composite and uniaxial magnetic anisotropy of the ferrite allowed alternate interfaces between both phases and fixed the orientation between the TiO2 crystal structure and the remanent...

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• Influence of plastic deformation on stray magnetic field distribution of soft magnetic steel sample

  Publikacja

  • Z. Usarek
  • B. Augustyniak
  • M. Augustyniak
  • M. Chmielewski

  - IEEE TRANSACTIONS ON MAGNETICS - Rok 2014

  The effect of various combinations of conditions, i.e., presence of the Earth’s magnetic field during and after deformation on the distribution of stray magnetic field of S355 steel sample, which is locally deformed, was investigated. Some of the stages of the experiment were carried out in zero magnetic field. Compensation of the Earth’s magnetic field was obtained by the application of a pair of Helmholtz coils. These coils are...

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• Structure and Magnetic Properties of Eu2CaCu2O6

  Publikacja

  • Q. Xu
  • T. Klimczuk
  • J. Jansen
  • R. Cava
  • H. Zandbergen

  - CHEMISTRY OF MATERIALS - Rok 2006

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• Magnetic signatures of land vehicles

  Publikacja

  • M. Nowak
  • M. Chomnicki
  • M. Wołoszyn

  - Rok 2016

  The results of numerical simulations of the magnetic field surrounding of land vehicles' models have been presented in this paper. Vehicle containing of ferromagnetic elements distorts the Earth's magnetic field. This distortion can be measured by magnetometers. It is possible to detect and identify an object on the basis of its magnetic signature.

• Structure and magnetic properties of Eu2CaCu2O6

  Publikacja

  • Q. Xu
  • T. Klimczuk
  • J. Jansen
  • R. J. Cava
  • H. W. Zandbergen

  - CHEMISTRY OF MATERIALS - Rok 2006

  Dyskutowany jest nowy typ związku na bazie tlenku miedzi. Jest to pierwszy związek o tzw. zero wymiarowym charakterze Cu-O.

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• Ring thruster with magnetic bearings

  Publikacja

  • L. Matuszewski
  • K. Falkowski

  - Rok 2003

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• Analysis of aircraft magnetic interference

  Publikacja

  • M. Wołoszyn

  - Rok 2011

  The magnetometric method is used among other things on mobile platforms (planes, helicopters) in military systems and in geological research. Optically-pumped and SQUID magnetometers are used in magnetic systems on airplanes. To be able to attain the sensitivity of modern magnetometers in flight, it is important that maneuver-related magnetic interference effects be minimized. The mathematical model of an aircraft as a source of...

• Model of ship's magnetic signature

  Publikacja

  • K. Jakubiuk
  • P. Zimny
  • M. Wołoszyn

  - Poznan University of Technology Academic Journals. Electrical Engineering - Rok 2011

  Ships made of ferromagnetic metals interfere with Earth's magnetic field in their surrounding. The disturbance of the magnetic field makes possible localization and even identification of the ship, which could determine a threat to the ship. The measurement of the magnetic field around the ship enables to determine its magnetic signature. The paper presents a multidipoles model of the ship magnetic field, which allows to determine...

• Enzyme immobilization on magnetic nanoparticles

  Publikacja

  • A. Panek
  • O. Pietrow-Tobiszewska
  • J. Synowiecki

  - New Biotechnology - Rok 2012

  Immobilized enzymes have been commonly used in many branches of industry, biotechnology, medicine and also in analytical chemistry. Their use provides many advantages in comparison with free enzymes including repeated, easy recovery of the enzyme and improvement in enzyme stability. Enzymes are strong and specific catalysts, but are also expensive and fragile. Their immobilization and stabilization may reduce reaction costs, which...

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• Analysis of aircraft magnetic interference

  Publikacja

  • M. Wołoszyn

  - INTERNATIONAL JOURNAL OF APPLIED ELECTROMAGNETICS AND MECHANICS - Rok 2012

  The magnetometric method is used among other things on mobile platforms (planes, helicopters) in military systems and in geological research. Optically-pumped and SQUID magnetometers are used in magnetic systems on airplanes. To be able to attain the sensitivity of modern magnetometers in flight, it is important that maneuver-related magnetic interference effects be minimized. The mathematical model of an aircraft as a source of...

• Magnetic properties of ferromagnetic Pu2Pt3Si5

  Publikacja

  • J. Griveau
  • E. Colineau
  • D. Bouxiere
  • K. Gofryk
  • T. Klimczuk
  • J. Rebizant

  - JOURNAL OF ALLOYS AND COMPOUNDS - Rok 2013

  The structural, magnetic, and thermodynamic properties of a new plutonium based compound, Pu2Pt3Si5, are reported. Single crystals produced by a Sn-flux technique have been analyzed showing a ferromagnetic behavior at 58 K. Pu2Pt3Si5 crystallizes in the U2Co3Si5-type orthorhombic Iabm structure (s.g. 72) with atomic parameters a = 9.9226(2) Å, b = 11.4436(2) Å and c = 6.0148(1) Å. The effective (leff 0.74 lB/Pu) and saturated (rsat...

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• The Dynamic Model of Magnetic Hysteresis

  Publikacja

  • A. Wilk
  • M. Michna

  - Rok 2015

  This paper presents the scalar dynamic magnetic hysteresis model based on the Preisach theory. The important role in this theory played hysteresis operator states. The changes of these operators` states are not immediate in the dynamic model but they are a function of time and parameter k representing the magnetic properties of the material. In this paper the transient state of the hysteresis operator is defined by the nonlinear...

• Magnetic nanocomposites for biomedical applications

  Publikacja

  • M. Naghdi
  • M. Ghovvati
  • N. Rabiee
  • S. Ahmadi
  • N. Abbariki
  • S. Sojdeh
  • A. Ojaghi
  • M. Bagherzadeh
  • O. Akhavan
  • E. Sharifi... i 6 innych

  - ADVANCES IN COLLOID AND INTERFACE SCIENCE - Rok 2022

  Tissue engineering and regenerative medicine have solved numerous problems related to the repair and regeneration of damaged organs and tissues arising from aging, illnesses, and injuries. Nanotechnology has further aided tissue regeneration science and has provided outstanding opportunities to help disease diagnosis as well as treat damaged tissues. Based on the most recent findings, magnetic nanostructures (MNSs), in particular,...

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• Centrifugal magnetic fluid seals

  Publikacja

  • L. Matuszewski
  • N. Canter

  - TRIBOLOGY & LUBRICATION TECHNOLOGY - Rok 2018

  Seals perform an important and at times overlooked function in a lubricant system. They prevent or minimize the movement of the lubricant between two surfaces and also minimize the level of contamination in the system. Seals are divided into static and dynamic types. Static seals operate in systems where the mating surfaces do not move relative to each other. In contrast, dynamic seals operate under conditions where the mating surfaces...

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• Magnetic photocatalysts for water treatment

  Publikacja

  • A. Zielińska-Jurek
  • S. Dudziak
  • Z. Bielan
  • A. Sulowska
  • I. Malinowska
  • I. Frąckiewicz

  - Rok 2019

  The concept of magnetic photocatalysts with separation function requires ferromagnetic material with high magnetic susceptibility to an external magnetic field to enable recycling of composite nanoparticles. Currently, much attention is devoted to functionalization of photocatalyst using MFe2O3, where M =Fe, Zn, Co, Mn. However direct contact between photocatalyst and magnetic iron oxide particles leads to photodissolution of iron...

• Chemical Pressure Tuning Magnetism from Pyrochlore to Triangular Lattices

  Publikacja

  • R. S. Dissanayaka Mudiyanselage
  • T. Klimczuk
  • D. Ni
  • R. J. Cava
  • W. Xie

  - INORGANIC CHEMISTRY - Rok 2022

  Geometrically frustrated lattices combined with magnetism usually host quantum fluctuations that suppress magnetic orders and generate highly entangled ground states. Three-dimensionally (3D) frustrated magnets generally exist in the diamond and pyrochlore lattices, while two-dimensionally (2D) frustrated geometries contain Kagomé, triangular, and honeycomb lattices. In this work, we reported using chemical pressure to tune the magnetism...

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• First-order magnetic transition in single-crystalline CaFe2As2 detected by 75As nuclear magnetic resonance

  Publikacja

  • S. Baek
  • N. Curro
  • T. Klimczuk
  • E. Bauer
  • F. Ronning
  • J. D. Thompson

  - PHYSICAL REVIEW B - Rok 2009

  Przedstawione są wyniki badań jądrowego rezonansu magnetycznego na 75As dla kryształów CaFe2As2. Wyniki wskazują, że strukturalne i magnetyczne przejścia w CaFe2As2 są silnie skorelowane i są pierwszego rodzaju.

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• Application of magnetic nanoparticles for magnetic solid-phase extraction in preparing biological, environmental and food samples

  Publikacja

  • M. Wierucka
  • M. Biziuk

  - TRAC-TRENDS IN ANALYTICAL CHEMISTRY - Rok 2014

  The need to obtain meaningful results as the basis for determining the content of trace amounts of analytes has become the driving force behind the development of modern analytical techniques, including sample-preparation techniques, such as solid-phase extraction (SPE). Recently, great interest was aroused in the use of magnetic nanoparticles (MNPs) in SPE. These materials exhibit high selectivity, and, in small amounts, can provide...

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• Evaluation by means of magneto-acoustic emission and Barkhausen effect of time and space distribution of magnetic flux density in ferromagnetic plate magnetized by a C-core

  Publikacja

  • M. Augustyniak
  • B. Augustyniak
  • L. Piotrowski
  • M. Chmielewski
  • W. Sadowski

  - JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS - Rok 2006

  Pokazano wyniki badań emisji magnetoakustycznej (EMA) i efektu Barkhausena (HEB) dla dwóch płyt stalowych o różnych wymiarach. Wyniki te są porównane z wynikami modelowania zjawiska EMA z wykorzystaniem metody elementów skończonych z uwzględniem efektu prądów wirowych. Uzyskano zadawalające dopasowanie modelu, który odtwarzał poszerzenie maksimum EMA oraz przesunięcie fazowe i zmianę amplitudy HEB.

• Magnetism from fundamentals to spintronics 22/23

  Kursy Online

  • L. Piotrowski

  1. Basic magnetic quantities2. Magnetism of atoms and molecules, atoms in external magnetic fields3. Solid state magnetism, types of magnetic materials (dia-, para-, and ferromagnetism)4. Ferromagnetism and domain structures5. Magnetism of small particles, single domain particles (StonerWohlfarth model), thin films6. Experimental techniques of magnetic properties and magnetisation state determination. Domain structurevisualisation...

• The influence of magnetic core on frequency characteristics

  Publikacja

  • T. Daszczynski
  • Z. Pochanke

  - Rok 2016

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• Analysis of magnetic field of Helmholtz's coils

  Publikacja

  • M. Wołoszyn
  • J. Wołoszyn
  • A. Młyński

  - Rok 2007

  The 3-axis fluxgate magnetometer requires conducting a precise calibration in the magnetic field whose value is determined and which is characterized by the high uniformity of the distribution of the field, especially along the axis of the sensors. The generation of the magnetostatic field characterized by the high uniformity, can be achieved by using the Helmholtz's coils. The requirements of the uniformity of distribution of...