Specifications

7704A 7707A 7710A 9709A
Magnetic field

 

Please consult
Lake Shore for
10 in magnet option information

 
Room temp
±1.3 T ±2 T ±9 T
Variable temp
±0.87 T ±1.2 T ±9 T
Temperature  
Standard
77 K or room temperature 2 K to 400 K
CCR
15 K to 350 K NA
Oven
350 K to 800 K NA
Carrier concentration density 8 × 102 to 8 × 1023 cm-3 8 × 102 to 8 × 1023 cm-3
Mobility 1 to 1 × 106 cm2/V s 1 to 1 × 106 cm2/V s
Current (A) ±1 pA to ±100 mA ±1 pA to ±100 mA
Voltage (V) 0 V to 100 V 0 V to 100 V
Resistance range (standard)
2% accuracy—VdP minimum: 0.5 mΩ,
HB minimum: 0.8 mΩ, maximum: 100 GΩ
5% accuracy—VdP minimum: 0.1 mΩ,
HB minimum: 0.04 mΩ, maximum: 200 GΩ
2% accuracy—VdP minimum: 0.5 mΩ, HB minimum: 0.8 mΩ, maximum: 100 GΩ
5% accuracy—VdP minimum: 0.1 mΩ, HB minimum: 0.04 mΩ, maximum: 200 GΩ
System equipment  
Sample holder module
75013 room temperature/77 K; 1-sided sample cards
 
9500-SI;
1-sided sample cards
Sample holder kit
(included with sample
holder module)
(1) 750SC10-50, (1) 750SC50-10, (1) 671-205, (1) 671-260, (1) 671-250, and (10) 1-inch sheets of indium foil Integrated into 9500-SI
Sample size
Up to 10 × 14 mm (0.4 × 0.6 in)
on a 25 × 75 mm (1 × 3 in) card;
up to 60 mm (2.4 in) square
on an 82 × 93 mm (3.2 × 3.7 in) card
Up to 76 mm (3 in) in diameter 12 × 14 mm (0.5 × 0.6 in) in a 25.4 mm (1 in) bore
Number of samples 1 1
Model 475 gaussmeter 1 NA
Model 776 matrix 1 1
Keithley equipment  
6220 Current Source 1 1
6485 Autoranging
Digital Picoammeter
1 1
2182A Digital Voltmeter 1 1
Magnet EM4-HVA EM7-HV Superconducting
Pole diameter 102 mm (4 in) 178 mm (7 in) NA
Pole face diameter 102 mm (4 in) 152 mm (6 in) 76.2 mm (3 in) NA
Max magnetic field at
room temperature
1.3 T (13 kG)
at 25 mm (1 in)
air gap
1.6 T (16 kG)
at 25 mm (1 in)
air gap
2.17 T (21.7 kG)
at 25 mm (1 in)
air gap
9 T
Max magnetic field at
variable temperature
0.87 T (8.7 kG)
at 51 mm (2 in)
air gap
1.18 T (11.8 kG)
at 51 mm (2 in)
air gap
1.47 T (14.7 kG)
at 51 mm (2 in)
air gap
9 T
Field homogeneity ±0.1% over 10 mm3 (0.4 in3) ±0.1% over centered 51 mm (2 in) diameter circle ±0.1% over 60 mm (2.3 in) on axis
Cooling water
requirements
Tap water or closed cycle cooling system (optional chiller available) Liquid helium
Inlet temperature 25 °C (77 °F) maximum 32 °C (90 °F) maximum NA
Pressure drop 200 kPa (30 psi) 220 kPa (32 psi) NA
Flow rate 7.6 L (2 gal)/min 11.4 L (3 gal)/min NA
Water chiller
cooling capacity
2.5 kW (8,530 BTU)/h 5 kW (17,060 BTU)/h NA
Bipolar magnet power supply 643 648 625
Mode DC DC
Maximum output ±35 V ±70 A (2450 W) ±75 V ±135 A (9.1 kW nominal) ±5 V/±60 A (300 W)
AC line input
204/208 VAC ±10%, 13 A/phase;
220/230 VAC ±10%, 12 A/phase;
380 VAC ±10%, 7 A/phase;
400/415 VAC ±10%, 6.5 A/phase at 50/60 Hz
200 VAC ±10%, 41 A/phase;
208 VAC ±10%, 40 A/phase;
220 VAC ±10%, 38 A/phase;
230 VAC ±10%, 37 A/phase;
380 VAC ±10%, 23 A/phase;
400 VAC ±10%, 21 A/phase;
415 VAC ±10%, 21 A/phase
Single phase 100, 120, 220, 240 VAC +6% -10%, 50 or 60 Hz, 850 VA
Flow rate 5.7 L (1.5 gal)/min minimum 7.6 L (2 gal)/min NA
Cooling water
requirements
Tap water or closed cycle cooling system (optional chiller available)
+15 °C to +30 °C
Tap water or closed cooling system
(optional chiller available)
+15 °C to +30 °C
Air cooled
Computer
Dell® computer with HDD, CD-ROM, 19-inch SVGA flat screen monitor, Windows® OS,
Hall software, and National Instruments IEEE-488 USB adaptor