New Description of Evolution of Magnetic Phases in Artificial Honeycomb Lattice

Summers, B.; Chen, Y.; Dahal, A.; Singh, D. K.

doi:10.1038/s41598-017-15786-8

Title: New Description of Evolution of Magnetic Phases in Artificial Honeycomb Lattice

Abstract

Artificial magnetic honeycomb lattice provides a two-dimensional archetypal system to explore novel phenomena of geometrically frustrated magnets. According to theoretical reports, an artificial magnetic honeycomb lattice is expected to exhibit several phase transitions to unique magnetic states as a function of reducing temperature. Experimental investigations of permalloy artificial honeycomb lattice of connected ultra-small elements, ≃ 12 nm, reveal a more complicated behavior. First, upon cooling the sample to intermediate temperature, T≃ 175 K, the system manifests a non-unique state where the long range order co-exists with short-range magnetic charge order and weak spin ice state. Second, at much lower temperature, T≃ 6 K, the long-range spin solid state exhibits a re-entrant behavior. Both observations are in direct contrast to the present understanding of this system. New theoretical approaches are needed to develop a comprehensive formulation of this two dimensional magnet.

Authors:

Summers, B. ^[1]; Chen, Y. ^[1]; Dahal, A. ^[1]; Singh, D. K. ^[1]

Univ. of Missouri, Columbia, MO (United States)

Publication Date:: Wed Nov 22 00:00:00 EST 2017

Research Org.:: Univ. of Missouri, Columbia, MO (United States)

Sponsoring Org.:: USDOE

OSTI Identifier:: 1500019

Grant/Contract Number:: SC0014461

Resource Type:: Accepted Manuscript

Journal Name:: Scientific Reports

Additional Journal Information:: Journal Volume: 7; Journal Issue: 1; Journal ID: ISSN 2045-2322

Publisher:: Nature Publishing Group

Country of Publication:: United States

Language:: English

Subject:: 71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS

Citation Formats


                    Summers, B., Chen, Y., Dahal, A., and Singh, D. K. New Description of Evolution of Magnetic Phases in Artificial Honeycomb Lattice.  United States: N. p., 2017. 
Web.  doi:10.1038/s41598-017-15786-8.

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                    Summers, B., Chen, Y., Dahal, A., & Singh, D. K. New Description of Evolution of Magnetic Phases in Artificial Honeycomb Lattice.  United States.  https://doi.org/10.1038/s41598-017-15786-8

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                    Summers, B., Chen, Y., Dahal, A., and Singh, D. K. Wed .  
"New Description of Evolution of Magnetic Phases in Artificial Honeycomb Lattice".  United States.  https://doi.org/10.1038/s41598-017-15786-8.  https://www.osti.gov/servlets/purl/1500019.

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@article{osti_1500019,

  title        = {New Description of Evolution of Magnetic Phases in Artificial Honeycomb Lattice},

  author       = {Summers, B. and Chen, Y. and Dahal, A. and Singh, D. K.},

  abstractNote = {Artificial magnetic honeycomb lattice provides a two-dimensional archetypal system to explore novel phenomena of geometrically frustrated magnets. According to theoretical reports, an artificial magnetic honeycomb lattice is expected to exhibit several phase transitions to unique magnetic states as a function of reducing temperature. Experimental investigations of permalloy artificial honeycomb lattice of connected ultra-small elements, ≃ 12 nm, reveal a more complicated behavior. First, upon cooling the sample to intermediate temperature, T≃ 175 K, the system manifests a non-unique state where the long range order co-exists with short-range magnetic charge order and weak spin ice state. Second, at much lower temperature, T≃ 6 K, the long-range spin solid state exhibits a re-entrant behavior. Both observations are in direct contrast to the present understanding of this system. New theoretical approaches are needed to develop a comprehensive formulation of this two dimensional magnet.},

  doi          = {10.1038/s41598-017-15786-8},

  journal      = {Scientific Reports},

  number       = 1,

  volume       = 7,

  place        = {United States},

  year         = {Wed Nov 22 00:00:00 EST 2017},

  month        = {Wed Nov 22 00:00:00 EST 2017}

}

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https://doi.org/10.1038/s41598-017-15786-8

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Cited by: 4 works

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Figure 1: Schematic description of temperature dependent magnetic phases. (a) Atomic force micrograph of a typical nanostructured artificial honeycomb lattice. (b–e) Magnetic phases in artificial honeycomb lattice of ultra-small element. As temperature reduces, the system undergoes through a variety of states: from a paramagnetic spin gas state at high temperature,more »

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Works referencing / citing this record:

Field and Current Control of the Electrical Conductivity of an Artificial 2D Honeycomb Lattice
journal, February 2019

Chen, Yiyao; Summers, Brock; Dahal, Ashutosh
Advanced Materials, Vol. 31, Issue 16
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Similar Records

Title: New Description of Evolution of Magnetic Phases in Artificial Honeycomb Lattice

Abstract

Citation Formats

Figures / Tables:

Direct observation of the ice rule in an artificial kagome spin ice journal, March 2008

Artificial kagome spin ice: dimensional reduction, avalanche control and emergent magnetic monopoles journal, December 2012

Artificial ‘spin ice’ in a geometrically frustrated lattice of nanoscale ferromagnetic islands journal, January 2006

Thermodynamic phase transitions in a frustrated magnetic metamaterial journal, September 2015

Magnetic and electrical properties of dhcp Np Pd 3 and ( U 1 − x Np x ) Pd 3 journal, November 2007

Magnetic pyrochlore oxides journal, January 2010

The 30 m Small-Angle Neutron Scattering Instruments at the National Institute of Standards and Technology journal, June 1998

Colloquium : Opportunities in nanomagnetism journal, January 2006

Ordering of PS- b -P4VP on Patterned Silicon Surfaces journal, June 2008

Colloquium : Artificial spin ice: Designing and imaging magnetic frustration journal, October 2013

Direct observation of magnetic monopole defects in an artificial spin-ice system journal, April 2010

Realization of artificial Kondo lattices in nanostructured arrays journal, January 2011

Spintronics: A Spin-Based Electronics Vision for the Future journal, November 2001

Real-space observation of emergent magnetic monopoles and associated Dirac strings in artificial kagome spin ice journal, October 2010

Emerging Chirality in Artificial Spin Ice journal, March 2012

Dynamics of Magnetic Charges in Artificial Spin Ice journal, October 2010

Unusual ordered phases of highly frustrated magnets: a review journal, April 2015

Dynamics of artificial spin ice: a continuous honeycomb network journal, March 2012

Magnetic interactions in a ferromagnetic honeycomb nanoscale network journal, February 2006

Ordering of PS- b -P4VP on Patterned Silicon Surfaces journal, June 2008

Thermodynamic phase transitions in a frustrated magnetic metamaterial journal, September 2015

Real-space observation of emergent magnetic monopoles and associated Dirac strings in artificial kagome spin ice journal, October 2010

Artificial kagome spin ice: dimensional reduction, avalanche control and emergent magnetic monopoles journal, December 2012

Magnetic multipole analysis of kagome and artificial spin-ice dipolar arrays journal, October 2009

Magnetic diffuse scattering in artificial kagome spin ice journal, June 2016

Two-Stage Ordering of Spins in Dipolar Spin Ice on the Kagome Lattice journal, May 2011

Spintronics: A Spin-Based Electronics Vision for the Future journal, November 2001

Direct observation of the ice rule in artificial kagome spin ice text, January 2008

Dynamics of magnetic charges in artificial spin ice text, January 2010

Colloquium: Artificial spin ice: Designing and imaging magnetic frustration text, January 2013

Unusual ordered phases of highly frustrated magnets: a review text, January 2014

Field and Current Control of the Electrical Conductivity of an Artificial 2D Honeycomb Lattice journal, February 2019

Advances in artificial spin ice journal, November 2019

Direct observation of the ice rule in an artificial kagome spin ice
journal, March 2008

Artificial kagome spin ice: dimensional reduction, avalanche control and emergent magnetic monopoles
journal, December 2012

Artificial ‘spin ice’ in a geometrically frustrated lattice of nanoscale ferromagnetic islands
journal, January 2006

Thermodynamic phase transitions in a frustrated magnetic metamaterial
journal, September 2015

Magnetic and electrical properties of dhcp $Np {Pd}_{3}$ and $(U_{1 - x} {Np}_{x}) {Pd}_{3}$
journal, November 2007

Magnetic pyrochlore oxides
journal, January 2010

The 30 m Small-Angle Neutron Scattering Instruments at the National Institute of Standards and Technology
journal, June 1998

Colloquium : Opportunities in nanomagnetism
journal, January 2006

Ordering of PS- b -P4VP on Patterned Silicon Surfaces
journal, June 2008

Colloquium : Artificial spin ice: Designing and imaging magnetic frustration
journal, October 2013

Direct observation of magnetic monopole defects in an artificial spin-ice system
journal, April 2010

Realization of artificial Kondo lattices in nanostructured arrays
journal, January 2011

Spintronics: A Spin-Based Electronics Vision for the Future
journal, November 2001

Real-space observation of emergent magnetic monopoles and associated Dirac strings in artificial kagome spin ice
journal, October 2010

Emerging Chirality in Artificial Spin Ice
journal, March 2012

Dynamics of Magnetic Charges in Artificial Spin Ice
journal, October 2010

Unusual ordered phases of highly frustrated magnets: a review
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Dynamics of artificial spin ice: a continuous honeycomb network
journal, March 2012

Magnetic interactions in a ferromagnetic honeycomb nanoscale network
journal, February 2006

Ordering of PS- b -P4VP on Patterned Silicon Surfaces
journal, June 2008

Thermodynamic phase transitions in a frustrated magnetic metamaterial
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Real-space observation of emergent magnetic monopoles and associated Dirac strings in artificial kagome spin ice
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Artificial kagome spin ice: dimensional reduction, avalanche control and emergent magnetic monopoles
journal, December 2012

Magnetic multipole analysis of kagome and artificial spin-ice dipolar arrays
journal, October 2009

Magnetic diffuse scattering in artificial kagome spin ice
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Two-Stage Ordering of Spins in Dipolar Spin Ice on the Kagome Lattice
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journal, November 2001

Direct observation of the ice rule in artificial kagome spin ice
text, January 2008

Dynamics of magnetic charges in artificial spin ice
text, January 2010

Colloquium: Artificial spin ice: Designing and imaging magnetic frustration
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Field and Current Control of the Electrical Conductivity of an Artificial 2D Honeycomb Lattice
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