Effect of magnetic fields on the specific heat of a<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi mathvariant="normal">Y</mml:mi><mml:mrow><mml:msub><mml:mrow><mml:mi mathvariant="normal">Ba</mml:mi></mml:mrow><mml:mrow><mml:mn>2</mml:mn></mml:mrow></mml:msub></mml:mrow><mml:mrow><mml:msub><mml:mrow><mml:mi mathvariant="normal">Cu</mml:mi></mml:mrow><mml:mrow><mml:mn>3</mml:mn></mml:mrow></mml:msub></mml:mrow><mml:mrow><mml:msub><mml:mrow><mml:mi mathvariant="normal">O</m

Salamon, M. B.; Inderhees, S. E.; Rice, J. P.; Pazol, B. G.; Ginsberg, D. M.; Goldenfeld, Nigel

doi:10.1103/physrevb.38.885

Cited by 119 publications

(48 citation statements)

References 16 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In AC methods 18 , thermocouples can be used to measure the sample temperature relative to a heat bath. The addenda can be reduced to a minimum by using chopped light from a laser diode [6][7]9 or a modulated-bath technique 1,2 to heat the sample. This feature, the high sensitivity due to signal averaging and the ease of construction make it an excellent choice for miniature calorimeters with 10 -4 to 10 -5 relative accuracy.…”

Section: Discussionmentioning

confidence: 99%

“…In this method the heat flows through the thermocouple legs towards the sample and may be more quantitatively controlled than e.g. with optical heating [6][7]9 . Due to the absence of a sample platform the addenda are reduced to a minimum.…”

Section: Methodsmentioning

confidence: 99%

“…The temperature dependence of the specific heat is one of the most basic and informative properties, however calorimetric measurements of samples with such tiny masses require special techniques [1][2][3][4][5][6][7][8] . In this article we present a new modulated-bath AC calorimeter for samples with masses of a few micrograms built from a commercial Peltier element, which presents the advantage of keeping the average temperature of the sample close to that of the thermal bath.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Modulated-bath ac calorimetry using modified commercial Peltier elements

Lortz

Abe

Wang

et al. 2005

Review of Scientific Instruments

View full text Add to dashboard Cite

We developed a new type of AC microcalorimeter based on a modulated-bath technique for measuring the specific heat of small microgram samples in the temperature range from 30-300 K, and tested it in magnetic fields up to 14 T. The device is built from a modified commercial Peltier element. The temperature of its top plate can be modulated periodically by Peltier effect, so that the oscillation is symmetrical about the temperature of the main bath. This avoids the problem of DC offsets which plagues conventional AC calorimeters. The sample is attached to a thin thermocouple cross, acting as a weak thermal link to a platform. The absence of a heater reduces the background heat capacity ('addenda') to a minimum. As an illustrative example of the performance of our device, the specific heat in fields up to 14 T of a small single crystal of the high-temperature superconductor Bi 2.12 Sr 1.71 Ca 1.22 Cu 1.95 O y is determined. † Present address:

show abstract

Section: Discussionmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Modulated-bath ac calorimetry using modified commercial Peltier elements

Lortz

Abe

Wang

et al. 2005

Review of Scientific Instruments

View full text Add to dashboard Cite

show abstract

“…A [Inderhees et al, 1988;Kanoda et al, 1988a and, weak flux pinning was observed [Yeshurun and Malozemoff, 1988], which reduced the critical current.…”

Section: Landau(ld) Coherence Length In the Cu02 Plane Sab(o) Of ~ 20mentioning

confidence: 99%

“…Some of the unusual properties of the new high TQ superconductors compared with the old conventional ones are: large large anisotropy in electronic transport [Crommie et al, 1988;Hagen et al, 1988a andTozer et al, 1987] and thermodynamic properties [Bauhofer et al, 1989;Collins et al, 1989;Enomoto et al, 1987;Farrell et al, 1989;Nakao et al, 1989;Welp et al, 1989], short zero temperature Ginzburg-Landau coherence length [Inderhees et al, 1988;Kanoda et al, 1988a and, heat capacity behavior around in magnetic fields [Lee et al, 1990d;Phillips et al, 1987;, linear term in low temperature heat capacity [Junod et al, 1989;1990;Reeves et al, 1989;, broad behavior in magnetoresistance below Tg (lye et al, 1987;Palstra et al, 1988a andSun et al. 1987], and normal state properties [lye et al, 1988;Penny et al, 1988;.…”

mentioning

confidence: 99%