BARIUM FERRITE = SMALLER PARTICLE SIZE
Smaller Particle Size
  • The smaller particle size of BaFe allows for more particles in a single bit cell
  • BaFe particles have better signal-to-noise ratio resulting in greater capacity
BARIUM FERRITE IN THE MARKET SINCE 2011

IBM and Oracle have been utilizing BaFe in their high capacity enterprise tape formats since 2011. Now BaFe is available in LTO Ultrium 6 from multiple suppliers.

BARIUM FERRITE = HIGH COERCIVITY
High Coercivity
  • Coercivity is the measure of resistance to demagnetization
  • High coercivity is a key requirement of recording stability and archivability
  • BaFe maintains high coercivity even at a smaller particle volume
BARIUM FERRITE PROVIDES STABLE RECORDING

BaFe magnetic particles are ultra-fine and have a higher magnetic property (coercivity) compared to metal particles, leading to superior performance and stability.

BARIUM FERRITE = HIGHER OUTPUT
Barium Ferrite BARIUM FERRITE
  • Barium Ferrite's magnetic property does not depend on it's shape
  • Barium Ferrite is perpendicularly magnetized resulting in higher output (high signal-to-noise ratio)
Metal Particle METAL PARTICLE
  • MP's magnetic property does depend on it's shape
  • As the size gets smaller, the magnetic property becomes weaker
  • Because MP is horizontally magnetized, the particles tend to cancel (demagnetize) each other resulting in output loss
BARIUM FERRITE = STABLE OXIDE MATERIAL
Barium Ferrite BARIUM FERRITE
  • BaFe is an oxide, therefore it does not lose it’s magnetic property due to oxidation
  • BaFe does not require an outer layer of protection like MP to maintain stability
Metal Particle METAL PARTICLE
  • MP is made of iron (Fe) therefore it will oxidize
  • MP's magnetic property will deteriorate over time
  • To mitigate this, the outer layer of MP is intentionally oxidized during production