Acta Physica Sinica, Volume. 68, Issue 17, 177101-1(2019)
Fig. 1. Intermetallic compounds with lanthanides or actinides form the majority of heavy fermion materials.重费米子材料大多是含有镧系或锕系元素的金属间化合物
Fig. 2. (a) A schematic illustration of the crystal structure of CeCu2Si2; (b) and (c) evidences for superconductivity in CeCu2Si2 from resistivity and heat capacity, respectively[3]; (d) temperature-pressure phase diagram of CeCu2Si2 and CeCu2(Si1–
Fig. 3. (a) Schematic illustrations of crystalline structures in Ce
Fig. 5. (a), (b) Schematic illustrations of the crystalline structure of UBe13 and UPt3, respectively; (c) superconducting phase diagram of UBe13 as a function of Th-doping[53]; (d) magnetic field–temperature superconducting phase diagram of UPt3[58]. (a) UBe13结构示意图; (b) UPt3结构示意图; (c) Th掺杂的UBe13相图[53]; (d) UPt3的超导相图[58]
Fig. 7. Heavy fermion superconductors and quantum phase diagrams: (a) CePd2Si2, superconductivity (SC) near an antiferromagnetic quantum critical point(QCP)[19]; (b) UCoGe, SC near a ferromagnetic QCP[87]; (c) PrTi2Al20, SC coexists with multipolar order and gets enhanced near its QCP[89]; (d) β-YbAlB4, SC far away from an antiferromagnetic QCP[90]. 重费米子超导体超导相和量子相变 (a) CePd2Si2, 超导出现在反铁磁量子临界点附近[19]; (b) UCoGe, 超导出现在铁磁量子相变附近[87]; (c) PrTi2Al20, 超导与多极矩序[89]; (d) β-YbAlB4, 超导远离反铁磁量子临界点[90]
Fig. 8. Schematic phase diagrams for itinerant quantum critical point (QCP) (a) and local QCP (b), respectively, proposed in one theoretical model. The
Fig. 10. (a) Temperature dependence of resistivity for a possible topological Kondo insulator SmB6, where a clear plateau is observed at low temperature[116]; (b) band inversion and surface Dirac cone of SmB6, from band-structure calculation[128]. (a) 拓扑近藤绝缘体SmB6的电阻随温度变化测量结果[116], 在低温, 电阻的上升趋势逐渐饱和, 形成一个平台; (b) 能带计算表明, SmB6的能带结构中存在能带反转, 从而导致了表面狄拉克锥的出现[128]
Fig. 12. (a) Pressure-temperature phase diagram of URu2Si2[146]; (b) magnetic field- temperature phase diagram of CePdAl[150]; (c) Q-phase of CeCoIn5, by neutron scattering measurements[151]. (a) URu2Si2材料在压力下的相图[146], 隐藏序相逐渐被抑制, 转变为反铁磁序, 同时超导相消失; (b) CePdAl材料的磁场-温度相图[150], 在某一磁场区间内, 比热测量结果表明其熵出现极大增加; (c) CeCoIn5中子散射结果表明其超导上临界磁场附近存在一个特殊的Q相[151]
A summary of heavy fermion superconductors (Tc is superconducting transition temperature, γ is specific heat coefficient, Hc2(0) is the upper critical field).
重费米子超导材料(超导转变温度Tc, 比热系数γ, 上临界场Hc2(0))
A summary of heavy fermion superconductors (Tc is superconducting transition temperature, γ is specific heat coefficient, Hc2(0) is the upper critical field).
重费米子超导材料(超导转变温度Tc, 比热系数γ, 上临界场Hc2(0))
|
Get Citation
Copy Citation Text
Wu Xie, Bin Shen, Yong-Jun Zhang, Chun-Yu Guo, Jia-Cheng Xu, Xin Lu, Hui-Qiu Yuan.
Received: May. 24, 2019
Accepted: --
Published Online: Sep. 16, 2020
The Author Email: