Magnon condensation
WebAug 1, 2024 · In this chapter we study the phenomenon of quasi-equilibrium Bose–Einstein condensation (BEC) of magnons at room temperature, experimentally observed in films of yttrium iron garnet (YIG) parametrically excited by microwave radiation. WebSep 28, 2006 · It involves the formation of a collective quantum state composed of identical particles with integer angular momentum (bosons), if the particle density exceeds a critical value. To achieve Bose–Einstein condensation, one can either decrease the temperature or increase the density of bosons.
Magnon condensation
Did you know?
WebMar 1, 2024 · Abstract. Bose-Einstein condensation (BEC) of triplet excitations triggered by a magnetic field, sometimes called magnon BEC, in dimerized antiferromagnets gives rise to a long-range antiferromagnetic order in the plane … WebMay 18, 2024 · Universal Themes of Bose-Einstein Condensation - April 2024. A quantised spin wave – magnon – in magnetic films can undergo Bose-Einstein condensation (BEC) into two energetically degenerate lowest-energy quantum states with nonzero wave vectors ±k BEC.This corresponds to two interfering condensates forming spontaneously in …
http://ultracold.physics.berkeley.edu/research/retired Webobservation of Bose–Einstein condensation in a gas of magnons at room temperature. Magnons are the quanta of magnetic excitations in a magnetically ordered ensemble of magnetic
WebSep 1, 2024 · This is the temperature dependence of magnetization, which is described by the density of quantum excitations—magnon. Another such phenomenon is the Bose–Einstein condensation of magnons (mBEC), which occurs when they is sufficiently concentrated. The critical density of magnons can be achieved by pumping non … WebMagnon Bose–Einstein condensation and superconductivity in a frustrated Kondo lattice Pavel A. Volkova,1, Snir Gazitb,c, and Jedediah H. Pixleya aDepartment of Physics and Astronomy, Center for Materials Theory, Rutgers, The State University of New Jersey, Piscataway, NJ 08854; bRacah Institute of Physics, The Hebrew University, Jerusalem …
WebApr 12, 2024 · Inverse “Foldover” Resonance in an Yttrium Iron Garnet Film. April 2024; JETP Letters 117(4):313-316 117(4):313-316
WebSep 28, 2006 · Here we report the observation of Bose–Einstein condensation in a gas of magnons at room temperature. Magnons are the quanta of magnetic excitations in a … full toefl practice testWebCondensation is a special phase transition. A phase transition occurs when some properties (in our case the density) of a particle ensemble (in our case an ensemble of water molecules) change dramatically when one changes a external parameter (in our example temperature) slightly. In physics we know a lot of other phase transitions. full tom and jerry episodesWebFeb 2, 2024 · We consider the phenomenon of Bose-Einstein condensation of quasi-equilibrium magnons which leads to a spin superfluidity, the coherent quantum transfer of magnetization in magnetic materials. These phenomena are beyond the classical Landau-Lifshitz-Gilbert paradigm. ginto nord free downloadWebApr 24, 2024 · Almost 15 years ago, researchers at the University of Münster (Germany) succeeded for the first time in achieving a novel quantum state of magnons at room temperature—a Bose-Einstein condensate... full toddlers and tiaras episodesWebWe studied the condensation of magnon excitations within a ferromagnetic spinor Bose-Einstein condensate, characterizing the transition by the position and momentum distribution of the critical magnon gas, and by the spontaneous emergence of … full tomb raider movieWebApr 12, 2024 · This property is inherent in magnon Bose–Einstein condensation, as previously shown in experiments with antiferromagnetic superfluid 3 He [7–9]. This result is explained by the formation of the magnon Bose–Einstein condensate at fairly large angles of deviation, the state of which is determined by the chemical potential of the bound ... full toe vs combination shoe treeWebMar 4, 2013 · Recently, magnons, which are quasiparticles describing the collective motion of spins, were found to undergo Bose-Einstein condensation (BEC) at room … gin tony reparto