EPSL Paper Featured as Cover Page for Physica Status Solidi B

EPSL | 2012.04.02 13:14 | 조회 3310

극한물성연구실 논문 “Field-induced quantum critical point in the pressure-induced superconductor CeRhIn5” 이 국제 SCI 저널인 Physica Status Solidi B의 최근호에 표지논문으로 선정되었다(http://www3.interscience.wiley.com/journal/40001185/home).

미국 로스알라모스 국립연구소와 공동연구로 진행된 이 논문은 압력, 자기장, 극저온 등 다중극한 환경에서 초전도 돔 안에 숨어있는 양자임계점을 밝힌 논문으로서 초전도 연구에 중요한 역할을 할 것으로 기대된다.

Is quantum criticality a key to unconventional superconductivity? The observation of superconductivity in the vicinity of a magneti-cally ordered phase prompts an idea that quantum fluctuations associated with a magnetic quantum critical point may provide the glue to form superconducting electron pairs. Often, however, a superconducting phase veils the presence of a quantum critical point, making it difficult to prove or disprove the conjecture. In their article, Tuson Park et al. report measurements of the electri-cal resistivity of CeRhIn5 at its optimal pressure where the super-conducting transition temperature is a maximum. When super-conductivity is suppressed by a magnetic field, these experiments provide evidence for the presence of a putative quantum critical point.

Reference: T. Park et al., Phys. Status Solidi B 247, 553 (2010)

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