Related Experiment Video
Updated: May 2, 2026
09:06
Visualizing Uniaxial-strain Manipulation of Antiferromagnetic Domains in Fe1+YTe Using a Spin-polarized Scanning Tunneling Microscope
Published on: March 24, 2019
6.6K
Ferromagnetic spin-glass behaviour in single-crystalline U2 IrSi3
M Szlawska1, M Majewicz, D Kaczorowski
1Institute of Low Temperature and Structure Research, Polish Academy of Sciences, P Nr 1410, 50-950 Wrocław, Poland.
Summary
Researchers studied the uranium silicide U(2)IrSi(3) and found evidence of a complex magnetic state. This non-trivial magnetic ground state combines ferromagnetic ordering with spin-glass freezing behavior.
Area of Science:
- Condensed Matter Physics
- Materials Science
- Uranium-based compounds
Background:
- Ternary silicides are an important class of materials with diverse magnetic properties.
- Uranium-based intermetallics often exhibit complex magnetic phenomena due to the localized nature of 5f electrons.
Purpose of the Study:
- To investigate the magnetic properties of the ternary silicide U(2)IrSi(3).
- To determine the nature of the magnetic ground state in U(2)IrSi(3).
Main Methods:
- Single crystal growth of U(2)IrSi(3).
- Magnetic susceptibility measurements.
- Electrical resistivity measurements.
- Heat-capacity measurements.
- Temperature and magnetic field dependent studies.
Main Results:
- The study revealed a complex magnetic ordering in U(2)IrSi(3).
- Evidence suggests a coexistence of ferromagnetic ordering and spin-glass freezing.
- The magnetic ground state is characterized as non-trivial.
Conclusions:
- U(2)IrSi(3) exhibits a unique magnetic ground state.
- The interplay between ferromagnetic and spin-glass phases is a key feature.
- Further investigation is warranted to fully understand the underlying mechanisms.
More Related Videos
Related Concept Videos
03:02Colors and Magnetism
12.1K
Color in Coordination Complexes
When atoms or molecules absorb light at the proper frequency, their electrons are excited to higher-energy orbitals. For many main group atoms and molecules, the absorbed photons are in the ultraviolet range of the electromagnetic spectrum, which cannot be detected by the human eye. For coordination compounds, the energy difference between the d orbitals often allows photons in the visible range to be absorbed and emitted, which is seen as colors by the human...
When atoms or molecules absorb light at the proper frequency, their electrons are excited to higher-energy orbitals. For many main group atoms and molecules, the absorbed photons are in the ultraviolet range of the electromagnetic spectrum, which cannot be detected by the human eye. For coordination compounds, the energy difference between the d orbitals often allows photons in the visible range to be absorbed and emitted, which is seen as colors by the human...
12.1K
01:31Ferromagnetism
2.8K
Materials like iron, nickel, and cobalt consist of magnetic domains, within which the magnetic dipoles are arranged parallel to each other. The magnetic dipoles are rigidly aligned in the same direction within a domain by quantum mechanical coupling among the atoms. This coupling is so strong that even thermal agitation at room temperature cannot break it. The result is that each domain has a net dipole moment. However, some materials have weaker coupling, and are ferromagnetic at lower...
2.8K
02:42Valence Bond Theory
8.9K
Coordination compounds and complexes exhibit different colors, geometries, and magnetic behavior, depending on the metal atom/ion and ligands from which they are composed. In an attempt to explain the bonding and structure of coordination complexes, Linus Pauling proposed the valence bond theory, or VBT, using the concepts of hybridization and the overlapping of the atomic orbitals. According to VBT, the central metal atom or ion (Lewis acid) hybridizes to provide empty orbitals of suitable...
8.9K
01:03Atomic Nuclei: Nuclear Spin State Overview
1.9K
NMR-active nuclei have energy levels called 'spin states' that are associated with the orientations of their nuclear magnetic moments. In the absence of a magnetic field, the nuclear magnetic moments are randomly oriented, and the spin states are degenerate. When an external magnetic field is applied, the spin states have only 2 + 1 orientations available to them. A proton with = ½ has two available orientations. Similarly, for a quadrupolar nucleus with a nuclear spin value of one, the...
1.9K
01:14Atomic Nuclei: Nuclear Spin State Population Distribution
1.7K
Near absolute zero temperatures, in the presence of a magnetic field, the majority of nuclei prefer the lower energy spin-up state to the higher energy spin-down state. As temperatures increase, the energy from thermal collisions distributes the spins more equally between the two states. The Boltzmann distribution equation gives the ratio of the number of spins predicted in the spin −½ (N−) and spin +½ (N+) states.
1.7K
01:26Diamagnetism
2.8K
Materials consisting of paired electrons have zero net magnetic moments. However, when these materials are placed under an external magnetic field, the moments opposite to the field are induced. Such materials are called diamagnets. Diamagnetism is the response of the diamagnets when placed in an external magnetic field.
Diamagnetism was discovered by Anton Brugmans in 1778 when he observed that bismuth gets repelled by magnetic fields, thus theorizing that diamagnets get repelled by magnets....
Diamagnetism was discovered by Anton Brugmans in 1778 when he observed that bismuth gets repelled by magnetic fields, thus theorizing that diamagnets get repelled by magnets....
2.8K