Tate Lab Wiki

You are here: start » thermalcond

Differences

This shows you the differences between two versions of the page.

Link to this comparison view

Both sides previous revisionPrevious revision
Next revision		Previous revision
thermalcond:start [2012/10/19 07:19] – riverthermalcond:start [2020/03/06 09:04] (current) – external edit 127.0.0.1
Line 29: Line 29:
 ==== Useful Publications ==== ==== Useful Publications ====
  
-  *[[http://rsi.aip.org/rsinak/v61/i2/p802_s1|Thermal conductivity measurement from 30 to 750 K: the 3ω method]] - David G. Cahill; Rev. Sci. Instrum. 61, 802 (1990); doi:10.1063/1.1141498   +  *[[http://rsi.aip.org/rsinak/v61/i2/p802_s1|Thermal conductivity measurement from 30 to 750 K: the 3ω method]] - David G. Cahill; Rev. Sci. Instrum. 61, 802 (1990); doi:10.1063/1.1141498; **and** Erratum: “Thermal conductivity measurement from 30 to 750 K: The 3ω method” [Rev. Sci. Instrum. 61, 802 (1990)]  Rev. Sci. Instrum. 73, 3701 (2002); doi:10.1063/1.1505652
-  *Erratum: “Thermal conductivity measurement from 30 to 750 K: The 3ω method” [Rev. Sci. Instrum. 61, 802 (1990)]  Rev. Sci. Instrum. 73, 3701 (2002); doi:10.1063/1.1505652+
   *[[http://avspublications.org/jvsta/resource/1/jvtad6/v7/i3/p1259_s1?isAuthorized=no|Thermal conductivity of thin films: Measurements and understanding]] - David G. Cahill; J. Vac. Sci. Technol. A 7, 1259 (1989); doi:10.1116/1.576265   *[[http://avspublications.org/jvsta/resource/1/jvtad6/v7/i3/p1259_s1?isAuthorized=no|Thermal conductivity of thin films: Measurements and understanding]] - David G. Cahill; J. Vac. Sci. Technol. A 7, 1259 (1989); doi:10.1116/1.576265
   *[[http://www.sciencedirect.com/science/article/pii/S0924424707000441|Extension of the 3ω method to measure the thermal conductivity of thin films without a reference sample]] - J. Alvarez-Quintanaa and J. Rodríguez-Viejo; Sensors and Actuators A: Physical , V. 142-1 (2008); doi:10.1016/j.sna.2007.01.013   *[[http://www.sciencedirect.com/science/article/pii/S0924424707000441|Extension of the 3ω method to measure the thermal conductivity of thin films without a reference sample]] - J. Alvarez-Quintanaa and J. Rodríguez-Viejo; Sensors and Actuators A: Physical , V. 142-1 (2008); doi:10.1016/j.sna.2007.01.013
Line 45: Line 44:
  
 ===== Correspondence ===== ===== Correspondence =====
 +** River's 11/13 email on Al heaters**
 +<code>Aluminum is the way to go for the 3-omega heaters (it is the only material that we've had success with for thin film measurements). 
 +
 +Ram and I tried nickel heaters on tetrahedrite w/ MnS insulating layer; the nickel reacted with the underlying film during dep, resulting in unusable heaters. 
 +In principle, Ni would be better than Al for 3-omega measurements as it has a significantly higher electrical resistivity and temperature coefficient of resistance. 
 +
 +Ram and I made another attempt with Al heaters on tetrahedrite films before I left. The films were extremely rough post-anneal, resulting in broken heaters. </code>
  
 **Email correspondence from Jean-Yves Duquesne of Université Pierre et Marie Curie to River Wiedle (10 May 2011):** **Email correspondence from Jean-Yves Duquesne of Université Pierre et Marie Curie to River Wiedle (10 May 2011):**
Line 121: Line 127:
   * Contact pads act as heat sinks! This causes a non-uniform temperature profile across the heater. A few papers have shown that this is not as big of a problem for AC signals above 10 Hz. However, using a heater design that moves the voltage leads away from the contact pads can help to get rid of this problem. Comsol modeling has shown that the voltage leads do not significantly alter the temperature profile of the heater.    * Contact pads act as heat sinks! This causes a non-uniform temperature profile across the heater. A few papers have shown that this is not as big of a problem for AC signals above 10 Hz. However, using a heater design that moves the voltage leads away from the contact pads can help to get rid of this problem. Comsol modeling has shown that the voltage leads do not significantly alter the temperature profile of the heater. 
   * The width of the heater needs to be extremely uniform for accurate measurements. For film measurements, it needs to be measured.   * The width of the heater needs to be extremely uniform for accurate measurements. For film measurements, it needs to be measured.
 +  * FIXME Information about making masks for heater KAI please add
  
 ==== Automation ==== ==== Automation ====
Line 132: Line 139:
 ====== People ====== ====== People ======
 The system was set up in 2011 by River Wiedle in collaboration with Mark Warner. The system was set up in 2011 by River Wiedle in collaboration with Mark Warner.
-Matt Oostman worked on the project Fall 2011->  Nico Schmidt Spring 2012 ->+Matt Oostman worked on the project Fall 2011->2012  Nico Schmidt Spring 2012 -> Fall 2012

Trace:

QR Code
QR Code thermalcond:start (generated for current page)