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Vibrating Sample Magnetometer (VSM)
IIC houses two different models of Vibrating Sample Magnetometers (VSM)-
1. Lake Shore VSM
2. Princeton VSM
 
About Instrument and its applications-
The magnetic properties of solids are very important, and attempts to understand them have led to a deep insight into the fundamental structure of many solids, both metallic and nonmetallic. The VSM is the instrument used to measure the magnetic moment, the most fundamental quantity in magnetism, of solid samples. When a sample material is placed in uniform magnetic field, a dipole moment proportional to the product of sample susceptibility and applied field is induced in the sample. If the sample is made to undergo sinusoidal motion as well, an electrical signal will be induced in suitable located stationary pick-coils. This signal, which is at the vibration frequency, is proportional to the magnetic moment, vibration amplitude and vibration frequency. The instrument displays the magnetic moment in e.m.u. units.
 
1. Lake Shore VSM
8600overview
 
General Information-
Make- Lake Shore
Model- 7410 Series VSM
Year of Installation- 2019
 
Specification-
  • Dynamic Range: 1 × 10-7 to 103 emu.
  • Time constants (TC): 0.1, 0.3, 1.0, 3.0, or 10.0 s
  • Reproducibility: Better than ±0.5%, or ±0.1% of full scale, fixed rotation angle and range, with sample replacement
  • Magnetic field :
    • At Room Temperature: ±3.1T
    • At Oven( RT to 1273K): ±2.2T
    • At Low Temperature (15K to RT): ±2.2T
  • Noise Floor (emu RMS) : 
    • At Room Temperature: 0.75 µemu
    • At Oven( RT to 1273K): 2.5 µemu
    • At Low Temperature (15K to RT): 2.5 µemu
  • Rotation : up to 360° continous with resolution of  0.1°.

Sample Requirements-

Sample weight: upto 10mg (Powder).

2. Princeton VSM

 
General Information-
Make- Quantum Design
Model- PAR 155
Year of Installation- 1979
 
Specification-
  • Range: 0.00001 to 10000 e.m.u.
  • Magnetic field : -10 to +10 kOe
  • Temperature range : Room Temperature
  • Rotation : up to 360° w.r.t magnetic field
  • Recording : X-Y/(t) Recorder

Sample Requirements-

Sample size : Diameter 2.5mm, Length 1-2.5mm
Sample weight: 20mg (Powder).
 
Analytical Charges-
For Charges Information Click Below Link-
 
Procedure for Sample Submission-
For users of IIT Roorkee Only
Internal candidates have to first register themselves at following portal-
Obtain a Token ID after logging in to above portal and then submit application (which can be downloaded from below link) mentioning the token ID, registration no. along with other relevant details to the IIC office.
For Downloading application click here-
 
For users other than IIT Roorkee
The Application (duly forwarded by concerned department HOD/Guide) along with analytical charges (in the form of Demand Draft) mentioning all the relevant parameters related to analysis may be sent to the below mentioned address-
Head
Institute Instrumentation Centre
Indian Institute of Technology Roorkee
Roorkee-247667
 
Mode of Payment:
For users of IIT Roorkee Only
The payment may be made in advance (In Cash) at Institute Instrumentation Centre Office.
 
For users other than IIT Roorkee
The payment should be made in the form of a Demand Draft in favor of “Dean SRIC, IIT Roorkee”. The DD should be sent along with your application and Samples.
NOTE: The DD amount should include service tax as per GOI rules.
 
Coordinator
Assistant Prof. Department of Physics             
Tel:+91-1332-284812 (Office)
E-mail: vivekfph@iitr.ac.in
 
Contact Person
Technical Officer-III
Tel: +91-1332-284580
Email id: vipin.mic@iitr.ac.in