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Title: Locking and Unlocking the Molecular Spin Crossover Transition

Authors:
 [1];  [1];  [2];  [3];  [4];  [1];  [1];  [1];  [5];  [6];  [5];  [5]; ORCiD logo [6]; ORCiD logo [7];  [1];  [8];  [3]; ORCiD logo [1]
  1. Department of Physics and Astronomy, University of Nebraska, Lincoln NE 68588-0299 USA
  2. Department of Theoretical Chemistry, Faculty of Chemistry, Jagiellonian University, Krakow 30-060 Poland
  3. Department of Chemistry, University of Buffalo, Buffalo NY 14260-3000 USA
  4. Advanced Light Source, Lawrence Berkeley National Laboratory, Berkeley CA 94720 USA
  5. CNRS, Univ. Bordeaux, ICMCB, UPR 9048 F-33600 Pessac France
  6. Université de Strasbourg, CNRS, CHIMIE UMR 7177, Laboratoire de Chimie de Coordination, 4 rue Blaise Pascal 67081 Strasbourg France
  7. University of Strasbourg, CNRS, IPCMS UMR 7504, 23 rue du Loess 67034 Strasbourg France
  8. Department of Physics and Astronomy, University of Nebraska, Lincoln NE 68588-0299 USA, Physikalisches Institut, Universität Bayreuth, 95440 Bayreuth Germany
Publication Date:
Sponsoring Org.:
USDOE
OSTI Identifier:
1377081
Grant/Contract Number:
AC02-05CH11231
Resource Type:
Journal Article: Publisher's Accepted Manuscript
Journal Name:
Advanced Materials
Additional Journal Information:
Journal Volume: 29; Journal Issue: 39; Related Information: CHORUS Timestamp: 2017-10-13 09:10:28; Journal ID: ISSN 0935-9648
Publisher:
Wiley Blackwell (John Wiley & Sons)
Country of Publication:
Germany
Language:
English

Citation Formats

Zhang, Xin, Costa, Paulo S., Hooper, James, Miller, Daniel P., N'Diaye, Alpha T., Beniwal, Sumit, Jiang, Xuanyuan, Yin, Yuewei, Rosa, Patrick, Routaboul, Lucie, Gonidec, Mathieu, Poggini, Lorenzo, Braunstein, Pierre, Doudin, Bernard, Xu, Xiaoshan, Enders, Axel, Zurek, Eva, and Dowben, Peter A.. Locking and Unlocking the Molecular Spin Crossover Transition. Germany: N. p., 2017. Web. doi:10.1002/adma.201702257.
Zhang, Xin, Costa, Paulo S., Hooper, James, Miller, Daniel P., N'Diaye, Alpha T., Beniwal, Sumit, Jiang, Xuanyuan, Yin, Yuewei, Rosa, Patrick, Routaboul, Lucie, Gonidec, Mathieu, Poggini, Lorenzo, Braunstein, Pierre, Doudin, Bernard, Xu, Xiaoshan, Enders, Axel, Zurek, Eva, & Dowben, Peter A.. Locking and Unlocking the Molecular Spin Crossover Transition. Germany. doi:10.1002/adma.201702257.
Zhang, Xin, Costa, Paulo S., Hooper, James, Miller, Daniel P., N'Diaye, Alpha T., Beniwal, Sumit, Jiang, Xuanyuan, Yin, Yuewei, Rosa, Patrick, Routaboul, Lucie, Gonidec, Mathieu, Poggini, Lorenzo, Braunstein, Pierre, Doudin, Bernard, Xu, Xiaoshan, Enders, Axel, Zurek, Eva, and Dowben, Peter A.. 2017. "Locking and Unlocking the Molecular Spin Crossover Transition". Germany. doi:10.1002/adma.201702257.
@article{osti_1377081,
title = {Locking and Unlocking the Molecular Spin Crossover Transition},
author = {Zhang, Xin and Costa, Paulo S. and Hooper, James and Miller, Daniel P. and N'Diaye, Alpha T. and Beniwal, Sumit and Jiang, Xuanyuan and Yin, Yuewei and Rosa, Patrick and Routaboul, Lucie and Gonidec, Mathieu and Poggini, Lorenzo and Braunstein, Pierre and Doudin, Bernard and Xu, Xiaoshan and Enders, Axel and Zurek, Eva and Dowben, Peter A.},
abstractNote = {},
doi = {10.1002/adma.201702257},
journal = {Advanced Materials},
number = 39,
volume = 29,
place = {Germany},
year = 2017,
month = 8
}

Journal Article:
Free Publicly Available Full Text
This content will become publicly available on August 28, 2018
Publisher's Accepted Manuscript

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  • The equations describing the spin dynamics of {sup 3}He-A have been generalised to allow for the effect of susceptibility anisotropy on the Leggett-Takagi damping. Analytical and numerical solutions have been obtained for the configuration where 1 is locked parallel to a static magnetic field by boundaries. Our investigations show that the dipole unlocking transition, where d flips from parallel to perpendicular to 1, should proceed via a long lived spin precession at a frequency ({omega}{sub L} {plus_minus} {omega}{sub LD}), where {omega}{sub L} is the Larmor frequency and {omega}{sub LD} the Larmor frequency at the dipole unlocking field. Progress in searchingmore » for this mode experimentally is reported.« less
  • Cited by 4
  • Cited by 1
  • The locking and unlocking thresholds for tearing modes are in general different. In this work, the physics origin for this difference is illustrated from theory analysis, and a numerical procedure is developed to find both locking and unlocking thresholds. In particular, a new scaling law for the unlocking threshold that is valid in both weak and strong rotation regimes has been derived from the lowest amplitude of the RMP (resonant magnetic perturbation) allowed for the locked-mode solution. Above the unlocking threshold, the criterion for the phase-flip instability is extended to identify the entire locked-mode states. Two different regimes of themore » RMP amplitude in terms of the accessibility of the locked-mode states have been found. In the first regime, the locked-mode state may or may not be accessible depending on the initial conditions of an evolving island. In the second regime, the locked-mode state can always be reached regardless of the initial conditions of the tearing mode. The lowest RMP amplitude for the second regime is determined to be the mode-locking threshold. The different characteristics of the two regimes above the unlocking threshold reveal the underlying physics for the gap between the locking and unlocking thresholds and provide an explanation for the closely related and widely observed hysteresis phenomena in island evolution during the sweeping process of the RMP amplitude up and down across that threshold gap.« less