1. Researchers at the University of Basel have developed a method to measure the exchange energy in molybdenum disulfide, a 2D semiconductor, to understand its ferromagnetic properties. 2. The exchange energy, crucial for the stability of ferromagnetism, was determined by analyzing spectral lines emitted from the material when excited by a laser. 3. The study highlights the potential of 2D materials like molybdenum disulfide in future technologies due to their unique physical properties.

1. Researchers at the University of Basel have investigated how to better understand the ferromagnetic properties of electrons in 2D semiconductor molybdenum disulfide. 2. They discovered that the energy required to flip a parallel-aligned electron spin can be measured in a surprisingly simple way. 3. The study, published in 'Physical Review Letters', determined the exchange energy necessary to reverse a single electron spin in this ferromagnetic state, indicating the material's stable ferromagnetism.

1. Researchers from the University of Basel have developed a new method to measure the exchange energy in molybdenum disulfide, a 2D material. 2. This method involves exciting the material with a laser and analyzing the emitted spectral lines to determine the energy required to flip an electron spin. 3. The findings indicate that molybdenum disulfide exhibits highly stable ferromagnetism, similar to iron.