Gester Instruments | Professional Textile, Footwear and PPE Testing Equipments Manufacturers Since 1997
Unstable metals provide a new way to study superconductivity
The Ames Laboratory of the U.S. Department of Energy discovered and described a unique disordered electron spin state that exists in metals. This state may provide a unique way to find and study unstable magnets. Condensed matter physicists use the term 'unstable' to describe a magnet whose spin is inconsistent with a stable magnetic order. These ultra-unstable magnet materials, called spin liquids, still have disordered magnetism even at extremely low temperatures, and their unique properties are of great help to the development of quantum computing and high-temperature superconductivity. In order to find this very unstable magnetic state, the material studied is usually an insulator. However, researchers in the Ames laboratory found this unstable state in a metal material with a molecular formula of CaCo1.86As2. Rob McQueeney, a scientist in the Ames Laboratory, said: 'This unstable system with an indeterminate magnetic state is difficult to find at the beginning, but it is even more difficult to find in metal.' In an insulated magnet, it leads to an unstable state of self. The interaction between spins is determined by the crystal structure of the crystal lattice, and this interaction is relatively constant. The discovery of this nearly unstable metal provides a new way to repair the magnetic interaction to achieve a completely unstable state. 'Here, we have a small handle that can be adjusted. We know that some of the interactions that cause instability are carried out by conducting electrons, and we can precisely adjust these interactions, maybe you will get a superconductor, maybe you will get Some other new quantum states. We have many choices' article from rdmag, the original title is'Perfectly Frustrated' Metal Provides Possible Path to Superconductivity, compiled by Material Science and Technology Online.
The Heat Contact Machine GT-C101 is a specialized testing instrument designed for evaluating the heat resistance and thermal protective performance of gloves, protective clothing, and other heat-resistant materials used in high-temperature environments. In industries such as smelting, casting, welding, and glass manufacturing, workers are frequently exposed to intense heat, making accurate testing of contact heat resistance essential for ensuring safety and compliance.
GT-C101 simulates real working conditions by measuring heat transfer delay and thermal transmission under instant contact with high-temperature surfaces. Fully compliant with EN 407, EN 702, and ISO 12127-1 standards, this machine provides precise, repeatable data for manufacturers, laboratories, and research institutions. With high-temperature capability up to 500°C, advanced calorimetry, digital monitoring, and adjustable contact speed, the Heat Contact Machine GT-C101 is an indispensable tool for developing and certifying next-generation PPE and heat-insulation materials.
1. ISO 5402-1: Specifies the flexometer method for testing leather flex resistance under repeated bending.
2. ISO 17694: Defines test methods for footwear upper and lining flex resistance, simulating real-world bending stress to assess long-term durability.
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