English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Plus monthly

Global: Zendy Tools annual

Global: Zendy Tools monthly

Global: Zendy Free Plan

Magnetic excitations in an array of (VO)_2P_2O_7 single crystals have beenmeasured using inelastic neutron scattering. Until now, (VO)_2P_2O_7 has beenthought of as a two-leg antiferromagnetic Heisenberg spin ladder with chainsrunning in the a-direction. The present results show unequivocally that(VO)_2P_2O_7 is best described as an alternating spin-chain directed along thecrystallographic b-direction. In addition to the expected magnon with magneticzone-center energy gap \Delta = 3.1 meV, a second excitation is observed at anenergy just below 2\Delta. The higher mode may be a triplet two-magnon boundstate.Comment: 4 pages, postscript figure

physical review letters

Magnetic Excitations in the<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi mathvariant="italic">S</mml:mi><mml:mspace /><mml:mo>=</mml:mo><mml:mspace /><mml:mn>1</mml:mn><mml:mn /><mml:mi>/</mml:mi><mml:mn>2</mml:mn></mml:math>Alternating Chain Compound<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mo>(</mml:mo><mml:mi>VO</mml:mi><mml:mrow><mml:msub><mml:mrow><mml:mo>)</mml:mo></mml:mrow><mml:mrow><mml:mn>2</mml:mn></mml:mrow></…

Magnetic Excitations in theS=1/2Alternating Chain Compound(VO)2