본문 바로가기
HOME> 논문 > 논문 검색상세

논문 상세정보

Nature communications v.9 no.1, 2018년, pp.2107 - 2107   SCI SCIE
본 등재정보는 저널의 등재정보를 참고하여 보여주는 베타서비스로 정확한 논문의 등재여부는 등재기관에 확인하시기 바랍니다.

Quantum Monte Carlo simulations of a giant {Ni21Gd20} cage with a S = 91 spin ground state

Chen, Wei-Peng (Frontier Institute of Science and Technology (FIST), State Key Laboratory for Mechanical Behavior of Materials, MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter, and School of Science, Xi'an Jiaotong University, 99 Yanxiang Road, Xi'an, Shaanxi, 710054, China ) ; Singleton, Jared (Department of Physics and Astronomy, Francis Marion University, Florence, SC, 29502, USA ) ; Qin, Lei (Frontier Institute of Science and Technology (FIST), State Key Laboratory for Mechanical Behavior of Materials, MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter, and School of Science, Xi'an Jiaotong University, 99 Yanxiang Road, Xi'an, Shaanxi, 710054, China ) ; Camón, Agustín (Instituto de Ciencia de Materiales de Aragón (ICMA) and Departamento de Física de la Materia Condensada, CSIC-Universidad de Zaragoza, E-50009, Zaragoza, Spain ) ; Engelhardt, Larry (Department of Physics and Astronomy, Francis Marion University, Florence, SC, 29502, USA. lengelhardt@fmarion.edu ) ; Luis, Fernando (Instituto de Cien ) ; Winpenny, Richard E. P. ; Zheng, Yan-Zhen ;
  • 초록  

    The detailed analysis of magnetic interactions in a giant molecule is difficult both because the synthesis of such compounds is challenging and the number of energy levels increases exponentially with the magnitude and number of spins. Here, we isolated a {Ni 21 Gd 20 } nanocage with a large number of energy levels (≈5 × 10 30 ) and used quantum Monte Carlo (QMC) simulations to perform a detailed analysis of magnetic interactions. Based on magnetization measurements above 2 K, the QMC simulations predicted very weak ferromagnetic interactions that would give a record S = 91 spin ground state. Low-temperature measurements confirm the spin ground state but suggest a more complex picture due to the single ion anisotropy; this has also been modeled using the QMC approach. The high spin and large number of low-lying states lead to a large low-field magnetic entropy (14.1 J kg −1  K −1 for ΔH = 1 T at 1.1 K) for this material.


 활용도 분석

  • 상세보기

    amChart 영역
  • 원문보기

    amChart 영역

원문보기

무료다운로드
유료다운로드

유료 다운로드의 경우 해당 사이트의 정책에 따라 신규 회원가입, 로그인, 유료 구매 등이 필요할 수 있습니다. 해당 사이트에서 발생하는 귀하의 모든 정보활동은 NDSL의 서비스 정책과 무관합니다.

원문복사신청을 하시면, 일부 해외 인쇄학술지의 경우 외국학술지지원센터(FRIC)에서
무료 원문복사 서비스를 제공합니다.

NDSL에서는 해당 원문을 복사서비스하고 있습니다. 위의 원문복사신청 또는 장바구니 담기를 통하여 원문복사서비스 이용이 가능합니다.

이 논문과 함께 출판된 논문 + 더보기