Verification of low dimensional Debye theory by specific heat capacity measurement of nano-particles

• Project/Area Number: 22760159
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Single-year Grants
• Research Field: Thermal engineering
• Research Institution: National Institute of Advanced Industrial Science and Technology
• Principal Investigator: ABE Haruka 独立行政法人産業技術総合研究所, 計測標準研究部門, 研究員 (70462835)
• Project Period (FY): 2010 – 2011
• Project Status: Completed (Fiscal Year 2011)
• Budget Amount: ¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000); Fiscal Year 2011: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000); Fiscal Year 2010: ¥2,860,000 (Direct Cost: ¥2,200,000、Indirect Cost: ¥660,000)
• Keywords: 熱物性 / ナノ粒子 / 比熱容量 / 断熱型熱量計

Research Abstract

To verify low dimensional Debye theory experimentally, specific heat capacity of gold nano-particles was measured by adiabatic calorimeter applying a pulse-tube refrigerator. Specific heat capacity of bulk of gold was also measured in the same condition and compared with the result of the nano-particles. It is found that the result in the nano-particles was different from that of the bulk. As temperature in particular rises, the difference increased. This suggests that the nano-particles have thermal characteristics unlike the bulk.