a)      SQUID (Superconducting quantum interference device) Magnetometer with

 variable temperature platform (1.4K-800K); Model- MPMS XL5; Vendor-

Quantum design, USA – installed in Sept 06.

Capabilities:  

·        Hysteresis loop up to 5T applied field at Room temperature as well as up to 1.4K

·        Magnetisation Vs temperature from room temperature up to 1.4 K

·        AC susceptibility from Room temperature to 1.4K with a maximum ac field of

      2.5Oe    from 0.01Hz  to 1.5KHz

·        Curie temperature determination up to 800K

·        Measurement of small coercivity with ultra low field

·        Powder as well as bulk samples (~5 mm wide) can be measured

b)      Wide band (1MHz – 9 GHz) Permeameter for measuring complex permeability    spectra; 

Model – PMM 9G; Vendor – Ryowa Electronics, Japan – installed in Sept 06.

Capabilities:

·        Complex permeability characterization at Room temperature from 1MHz to 9GHz

·        Loss spectra up to 9GHz for a sample size 4mm X 0.8mm X 10mm

·        Transverse bias field measurement from 0 to 0.2T

c)      Wafer (4” & 6”) level hysteresis loop tracer; Model- MESA 200 HF; Vendor – SHB    

Instruments, USA – installed in Sept 06.

Capabilities:

·        Real time hysteresis loop measurement on blanket Si Wafer (4” & 6”) up to a field of 0.1T  

·        Real time hysteresis loop measurement on patterened Si Wafer (4” & 6”) up to a field of 

      0.1T

·        Real time determination of easy and hard axis.

·        Measurement of magnetostriction

·        Measurement of anisotropy field