---
title: "Ruderman-Kittel-Kasuya-Yosida Polarization Across a Potential well in one Dimension • CBPF Index"
description: "CBPF INDEX is the system that tracks the scientific and technological output of CBPF. It lists the articles, books, technical reports and other publications of the whole CBPF community."
canonical_url: "https://index.cbpf.br/en/publicacoes/6ad2a767639f62b11adbb5bc"
locale: en
meta:
  "og:description": "CBPF INDEX is the system that tracks the scientific and technological output of CBPF. It lists the articles, books, technical reports and other publications of the whole CBPF community."
  "og:image": "https://index.cbpf.br/_og/d/c_Item%2Ctitulo_Ruderman-Kittel-Kasuya-Yosida%2BPolarization%2BAcross%2Ba%2BPotential%2Bwell%2Bin%2Bone%2BDimension%2Ctipo_Physics%2BNote%2Ccor_~I2E4MmMwMA%2Cautores_~Si4gUy4gSGVsbWFuOyBXLiBCYWx0ZW5zcGVyZ2Vy%2Cdetalhe_1994%2Csecao_Publications%2Cp_Ii9lbi9wdWJsaWNhY29lcy82YWQyYTc2NzYzOWY2MmIxMWFkYmI1YmMi%2Cs_KqxB9biO1XIVO1cf.png"
  "og:image:height": "600"
  "og:image:type": image/png
  "og:image:width": "1200"
  "og:title": "Ruderman-Kittel-Kasuya-Yosida Polarization Across a Potential well in one Dimension • CBPF Index"
  "twitter:image": "https://index.cbpf.br/_og/d/c_Item%2Ctitulo_Ruderman-Kittel-Kasuya-Yosida%2BPolarization%2BAcross%2Ba%2BPotential%2Bwell%2Bin%2Bone%2BDimension%2Ctipo_Physics%2BNote%2Ccor_~I2E4MmMwMA%2Cautores_~Si4gUy4gSGVsbWFuOyBXLiBCYWx0ZW5zcGVyZ2Vy%2Cdetalhe_1994%2Csecao_Publications%2Cp_Ii9lbi9wdWJsaWNhY29lcy82YWQyYTc2NzYzOWY2MmIxMWFkYmI1YmMi%2Cs_KqxB9biO1XIVO1cf.png"
---

> Index of every page on this site: [llms.txt](https://index.cbpf.br/llms.txt)

**Physics Note****Published**

# **Ruderman-Kittel-Kasuya-Yosida Polarization Across a Potential well in one Dimension**

**J. S. Helman; W. Baltensperger**

1994

[**Download PDF **0.2 MB](https://index.cbpf.br/files/publicacao/6ad2a767639f62b11adbb5bc/pdf) [**Contact owner**](mailto:apub@cbpf.br?subject=Ruderman-Kittel-Kasuya-Yosida%20Polarization%20Across%20a%20Potential%20well%20in%20one%20Dimension)

## **Publication details**

<dl>

<dt>Authors</dt>
<dd>J. S. Helman; W. Baltensperger</dd>

<dt>Type</dt>
<dd>Physics Note</dd>

<dt>Status</dt>
<dd>Published</dd>

<dt>Publication date</dt>
<dd>1994</dd>

<dt>Description</dt>
<dd>The RKKY spin polarization due to a point field is calculated for an electron gas with a reflectionless potential well. An approximation which uses a space dependent Fermi wave number is introduced. It follows remarkably well the exact result. For a class of potentials it is shown that the integrated spin polarisation equals the Pauli susceptibility multiplied by the coupling constant and the mean probability density of the electron states of the Fermi surface at the position of the point field.</dd>

<dt>Year</dt>
<dd>1994</dd>

<dt>Number</dt>
<dd>CBPF-NF-013/94</dd>

<dt>Linked to a thesis</dt>
<dd>No</dd>

<dt>Linked to a grant</dt>
<dd>No</dd>

</dl>

```json
{"@context":"https://schema.org","@graph":[{"@id":"https://index.cbpf.br/en#website","@type":"WebSite","description":"O CBPF INDEX é o sistema de acompanhamento da produção científica e tecnológica do CBPF. Nele é possível obter a lista de publicações de artigos, livros, relatórios técnicos, etc de toda a comunidade do CBPF.","inLanguage":"en-US","name":"CBPF Index","url":"https://index.cbpf.br/en","publisher":{"@id":"https://index.cbpf.br/#identity"},"translationOfWork":{"@id":"https://index.cbpf.br/#website"}},{"@id":"https://index.cbpf.br/en/publicacoes/6ad2a767639f62b11adbb5bc#webpage","@type":"WebPage","description":"CBPF INDEX is the system that tracks the scientific and technological output of CBPF. It lists the articles, books, technical reports and other publications of the whole CBPF community.","name":"Ruderman-Kittel-Kasuya-Yosida Polarization Across a Potential well in one Dimension","url":"https://index.cbpf.br/en/publicacoes/6ad2a767639f62b11adbb5bc","isPartOf":{"@id":"https://index.cbpf.br/en#website"},"potentialAction":[{"@type":"ReadAction","target":["https://index.cbpf.br/en/publicacoes/6ad2a767639f62b11adbb5bc"]}],"primaryImageOfPage":{"@id":"https://index.cbpf.br/#logo"}},{"@id":"https://index.cbpf.br/#identity","@type":"Organization","alternateName":"CBPF","description":"Unidade de pesquisa do Ministério da Ciência, Tecnologia e Inovação dedicada à pesquisa básica em Física, suas aplicações e à formação científica.","email":"web@cbpf.br","legalName":"Centro Brasileiro de Pesquisas Físicas/CBPF","name":"Centro Brasileiro de Pesquisas Físicas","taxID":"04.044.443/0001-35","telephone":"+55-21-2141-7100","url":"https://cbpf.br","address":{"@type":"PostalAddress","streetAddress":"Rua Dr. Xavier Sigaud, 150","addressLocality":"Rio de Janeiro","addressRegion":"RJ","postalCode":"22290-180","addressCountry":"BR"},"logo":{"@id":"https://index.cbpf.br/#logo"},"sameAs":["https://twitter.com/cbpf_mcti"]},{"@id":"https://index.cbpf.br/#logo","@type":"ImageObject","caption":"Centro Brasileiro de Pesquisas Físicas","contentUrl":"https://index.cbpf.br/icon-512x512-light.png","inLanguage":"en-US","url":"https://index.cbpf.br/icon-512x512-light.png"}]}
```

## Sitemap

See the full [sitemap](https://index.cbpf.br/sitemap.md) for all pages.