Development of quasi-adiabatic specific heat measurement under high magnetic field using CBT sensor

利用CBT传感器开发强磁场下准绝热比热测量

• 批准号: 23540392
• 负责人: INAGAKI Yuji
• 金额: $ 3.24万
• 依托单位: Kyushu University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 2011
• 资助国家: 日本
• 起止时间: 2011 至 2013
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-23540392/
• 关键词: ＣＢＴセンサー; 強磁場; 極低温; 断熱法比熱; CBTセンサー; 国際情報交流; 比熱; 断熱法

Aim of the present study is to develop the system of the quasi-adiabatic specific heat measurement under high magnetic field using Coulomb Blockade thermometer (CBT) sensor, which is a primary thermometer based on the change of electric conductance of tunnel junction arrays, because the full width of the differential conductance depends only on the temperature of the sensor. The sensor can be also used as a secondary sensor by recording the amplitude at zero bias using Loch-in amplifier. This allow us to measure the temperature quick enough to perform the specific heat measurement. Installing the CBT sensor to the system, we repeated the test and improvement. Finally we could achieve the demanded level for the ordinary adiabatic method.

本研究的目的是利用库仑阻塞温度计（CBT）传感器开发强磁场下准绝热比热测量系统，库仑阻塞温度计（CBT）传感器是基于隧道结阵列电导变化的主要温度计，因为微分电导的全宽度仅取决于传感器的温度。该传感器还可以用作辅助传感器，通过使用Loch-in放大器记录零偏置下的幅度。这使我们能够足够快地测量温度以执行比热测量。 将CBT传感器安装到系统中，重复测试和改进。 最终达到了普通绝热法的要求水平。

项目成果

SQUID磁束形容3Heインサートの開発

SQUID 磁通形状 3He 嵌件的开发

• 发表时间: 2014
• 期刊: 固体物理
• 作者: 佐藤由昌;蓮尾斎彦;稲垣祐次;河江達也
• 通讯作者: 河江達也

Unusual Magnetic Ordering Observed in Nanosized S = 1/2 Quantum Spin System (CH3) 2NH2CuCl 3

在纳米 S = 1/2 量子自旋系统 (CH3) 2NH2CuCl 3 中观察到不寻常的磁排序

• DOI: 10.7566/jpsj.83.054716
• 发表时间: 2014
• 期刊: J. Phys. Soc. Jpn
• 作者: Yuji Inagaki;Yasutaka Sakamoto;Hiroki Morodomi;Tatsuya Kawae;Yasuo Yoshida;Takayuki Asano;Kohei Hosoi;Hirokazu Kobayashi;Hiroshi Kitagawa;Yoshitami Ajiro;and Yuji Furukawa
• 通讯作者: and Yuji Furukawa

Ac Calorimetry under Pulsed High Magnetic Field

脉冲强磁场下的交流量热法

• 发表时间: 2012
• 作者: Iduru Shigeta;Yuya Nishisako;Shinpei Urakawa;Osamu Murayama;Masakazu Ito;and Masahiko Hiroi;Yuji Inagaki
• 通讯作者: Yuji Inagaki

Magnetic Properties of 1:2 Mixed Cobalt(II) Salicylaldehyde Schiff-Base Complexes with Pyridine Ligands Carrying High-Spin Carbenes (Scar = 2/2, 4/2, 6/2, and 8/2) in Dilute Frozen Solutions: Role of Organic Spin in Heterospin Single-Molecule Magnets

1:2 混合钴 (II) 水杨醛希夫碱配合物与携带高自旋卡宾（疤痕 = 2/2、4/2、6/2 和 8/2）的吡啶配体在稀冷冻溶液中的磁性：作用

• DOI: 10.1021/ic403074d
• 发表时间: 2014
• 期刊: Inorg Chem.
• 作者: Satoru Karasawa; Kimihiro Nakano;Daisuke Yoshihara;Noriko Yamamoto;Jun-ichi Tanokashira;Takahito Yoshizaki;Yuji Inagaki;Noboru Koga
• 通讯作者: Noboru Koga

Zero-bias anomaly in ferromagnetic Ni nanoconstrictions

铁磁镍纳米收缩中的零偏置异常

• DOI: 10.1103/physrevb.86.064404
• 发表时间: 2012
• 期刊: Physcal Review B
• 作者: K. Ienaga;et al.
• 通讯作者: et al.