Anisotropic Magnon Spin Transport in Ultrathin Spinel Ferrite Thin Films-Evidence for Anisotropy in Exchange Stiffness
        
      
     
  
    
    
    
    
      
      
        
          Electric-field control of spin dynamics during magnetic phase transitions
        
      
     
  
    
    
    
    
      
      
        
          Controlling spin current polarization through non-collinear antiferromagnetism