典型文献
Thermoelectric and electrical characteristics of SmS ceramic samples after exposure to a pulsed magnetic field
文献摘要：
Samarium monosulfide(SmS)is a promising material for creating thermoelectric generators(TEG),gas sensors and strain gauges.Despite the high values of the generated thermo electromotive force(TEMF)(α=170-350 μV/K),methods for increasing the efficiency of TEGs based on SmS are of considerable interest.One of these methods can be short-term effects of magnetic fields,including pulsed ones,on these materials.The action of a pulsed magnetic field(PMF)leading to an increase in TEMF(UT)of SmS ceramic samples is found.Samples that are not subjected to high frequency currents(HFC)annealing show an increase in UT of 44.54％-62.18％(from 11.9 to 17.2-19.3 mV).The conductivity(σ)of the samples is～22 Ω-1/cm and is insensitive to short-term exposure to a PMF.Samples that undergo HFC annealing show an increase in UT of 23.47％-41.31％(from 21.3 to 26.3-30.1 mV)after exposure to a PMF.The conductivity of the samples is～15 Ω-1/cm and after a short exposure to the PMF is changing non-monotonically,with an increase in the overall instability.The difference in the values of UT and σ can be explained by presence of an ordered grain structure and a significant amount of the Sm2O2S phase in the samples subjected to HFC annealing.Possible mechanisms of the observed changes are discussed.
文献关键词：
中图分类号：
作者姓名：
Ivan Volchkov;Evgeniy Baskakov;Vladimir Strelov;Vladimir Kanevskii
作者机构：
FSRC"Crystallography and Photonics"RAS,Leninskiy Prospekt 59,119333,Moscow,Russia
文献出处：
引用格式：
[1]Ivan Volchkov;Evgeniy Baskakov;Vladimir Strelov;Vladimir Kanevskii-.Thermoelectric and electrical characteristics of SmS ceramic samples after exposure to a pulsed magnetic field)[J].稀土学报（英文版）,2022(11):1778-1784
A类：
SmS,Samarium,monosulfide,TEMF,Sm2O2S
B类：
Thermoelectric,electrical,characteristics,ceramic,samples,after,exposure,pulsed,magnetic,promising,creating,thermoelectric,generators,gas,sensors,strain,gauges,Despite,high,values,generated,electromotive,force,methods,increasing,efficiency,TEGs,are,considerable,interest,One,these,be,short,term,effects,fields,including,ones,materials,action,PMF,leading,increase,UT,found,Samples,that,subjected,frequency,currents,HFC,annealing,show,from,mV,conductivity,insensitive,undergo,changing,monotonically,overall,instability,difference,explained,by,presence,ordered,grain,structure,significant,amount,phase,Possible,mechanisms,observed,changes,discussed
AB值：
0.432095
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