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All Journal Jurnal Sains Materi Indonesia
Teguh Yoga Raksa
Jurusan Fisika, FMIPA, Universitas Indonesia, Depok 16424
Materials Science & Nanotechnology

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MAGNETIC PROPERTIES OF THE TWO-LEG ZIG-ZAG LADDER IN QUANTUM SPIN SYSTEM NH4CuCl3 Teguh Yoga Raksa; Budhy Kurniawan
Jurnal Sains Materi Indonesia Vol 3, No 2: FEBRUARI 2002
Publisher : Center for Science & Technology of Advanced Materials - National Nuclear Energy Agency

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (519.841 KB) | DOI: 10.17146/jusami.2002.3.2.5252

Abstract

MAGNETIC PROPERTIES OF THE TWO-LEG ZIG-ZAG LADDER IN QUANTUM SPIN SYSTEM NH4CuCl3. Numerical analysis of the two-leg zig-zag ladder as a single chain with next-nearest neighbour interactions has been formulated by Cabra (1999) with the following Hamiltonian: Other formulation for two leg zig-zag ladder with dimmerized chains and coupling between the chains is as follow : From these formulations, we study the closing of the gap at zero magnetization by means of the fine—tuning mechanism and disappreance of the 1/2 plateau (gap) at finite by alternating dimerization of the chains along the rungs. We also described NH4CuCl3 under high magnetic fields in a two-leg system.
Co-Authors Budhy Kurniawan