Journal Guides4 min readUpdated Mar 27, 2026

Journal of Applied Physics Cover Letter: What Editors Actually Need to See

JAP covers all applied physics with no page limit. Name the subfield for routing and state the practical relevance.

By Senior Researcher, Physics•
Author contextSenior Researcher, Physics. Experience with Physical Review Letters, Physical Review B, Nature Physics.View profile

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Journal context

Journal of Applied Physics at a glance

Key metrics to place the journal before deciding whether it fits your manuscript and career goals.

Full journal profile
Impact factor2.5Clarivate JCR
Acceptance rate~50-60%Overall selectivity
Time to decision~90-120 days medianFirst decision

What makes this journal worth targeting

  • IF 2.5 puts Journal of Applied Physics in a visible tier — citations from papers here carry real weight.
  • Scope specificity matters more than impact factor for most manuscript decisions.
  • Acceptance rate of ~~50-60% means fit determines most outcomes.

When to look elsewhere

  • When your paper sits at the edge of the journal's stated scope — borderline fit rarely improves after submission.
  • If timeline matters: Journal of Applied Physics takes ~~90-120 days median. A faster-turnaround journal may suit a grant or job deadline better.
  • If open access is required by your funder, verify the journal's OA agreements before submitting.
Working map

How to use this page well

These pages work best when they behave like tools, not essays. Use the quick structure first, then apply it to the exact journal and manuscript situation.

Question
What to do
Use this page for
Getting the structure, tone, and decision logic right before you send anything out.
Most important move
Make the reviewer-facing or editor-facing ask obvious early rather than burying it in prose.
Common mistake
Turning a practical page into a long explanation instead of a working template or checklist.
Next step
Use the page as a tool, then adjust it to the exact manuscript and journal situation.

Quick answer: Journal of Applied Physics covers a very broad range of applied physics subfields with no page limit. A strong cover letter names the subfield for routing, states the applied result with a concrete number, and explains why the manuscript needs JAP rather than a shorter letter venue.

What Journal of Applied Physics Editors Screen For

Criterion
What They Want
Common Mistake
Subfield identification
Clear naming of the applied physics subfield for referee assignment
Not naming the subfield, forcing the editor to guess across JAP's enormous scope
Applied relevance
A practical dimension - device improvement, material property, engineering value
Submitting purely fundamental physics with no applied angle
Distinction from APL
Full treatment that needs more than a 4-page letter format
Submitting a compact result better suited for Applied Physics Letters
Technical soundness
Correct methods and supported conclusions
Unsupported conclusions or incomplete experimental characterization
Completeness
Thorough treatment appropriate for a no-page-limit journal
Superficial treatment that does not take advantage of the longer format

What the official sources do and do not tell you

The AIP author guidelines explain submission procedures. They do not emphasize how important subfield identification is across JAP's enormous scope.

What the editorial model implies:

  • JAP covers everything from condensed matter to plasma to acoustics to photonics
  • subfield context is essential for referee assignment
  • no page limit means thorough papers are welcome
  • the ~40-50% acceptance rate means the bar is applied relevance and soundness

What Journal of Applied Physics editors screen for

JAP (IF approximately 2.5) receives thousands of submissions per year spanning the full breadth of applied physics. Editors use the cover letter to sort incoming papers quickly. Here is what they look for:

  1. Subfield identification. JAP's scope runs from condensed matter and magnetism through photonics, plasma physics, acoustics, thin films, semiconductors, and beyond. If you don't name the subfield, the editor has to guess - and guessing slows the process or sends the paper to the wrong referee.
  2. Applied relevance. The word "applied" is in the title for a reason. Editors want to see that your work has a practical dimension - a device improvement, a material property that enables something, a measurement technique with engineering value. Purely fundamental physics with no applied angle is better suited to Physical Review B or Journal of Physics.
  3. Distinction from APL. Applied Physics Letters publishes 4-page letters about single focused results with immediate applied significance. JAP publishes longer, more detailed articles where the full experimental or theoretical treatment matters. If your result is compact enough for APL, submit there instead. The cover letter should make clear why the paper needs the fuller treatment JAP provides.
  4. Technical soundness. JAP's acceptance rate sits around 40-50%, which means the bar is correctness and completeness rather than extreme novelty. Editors check whether the methods are sound and the conclusions are supported.

Cover letter template for Journal of Applied Physics

Dear Editor,

We submit "[TITLE]" for consideration in Journal of Applied Physics.

This paper reports [MAIN RESULT] in the field of [SUBFIELD, e.g.,
thin-film magnetism / semiconductor photonics / acoustic metamaterials].

Using [BRIEF METHOD - e.g., pulsed laser deposition combined with
magneto-optical Kerr effect measurements], we demonstrate that
[KEY QUANTITATIVE FINDING, e.g., the coercivity increases by 40%
when the bilayer thickness exceeds 12 nm].

This result is relevant to [PRACTICAL APPLICATION, e.g., next-generation
magnetic recording media / high-frequency filter design] because
[ONE SENTENCE explaining why].

The manuscript has not been published or submitted elsewhere. All authors
have approved the submission. We have no conflicts of interest to declare.

Suggested reviewers:
1. [Name, Affiliation, Email - expert in your subfield]
2. [Name, Affiliation, Email]

Sincerely,
[Corresponding Author Name]
[Affiliation]
[Email]

Adapt the template to your specific subfield. The suggested reviewers section is optional but helps editors who handle papers outside their personal expertise.

Common mistakes

  1. Not naming the subfield. A letter that says "we report new results in applied physics" forces the editor to open the manuscript and figure out the topic. Name it explicitly: thin-film magnetics, semiconductor transport, polymer rheology, whatever the actual subfield is.
  2. Submitting purely fundamental physics. JAP is not Physical Review B. If your paper has no applied dimension - no device relevance, no engineering implication, no material property that matters outside the lab - the editor will likely suggest transfer to a fundamental physics journal.
  3. Confusing JAP with APL. If the paper presents one focused result that fits in 4 pages, submit to Applied Physics Letters. If you submit a short-letter-style manuscript to JAP, referees may question why the work needs the longer format. Conversely, don't submit a 15-page detailed study to APL.
  4. Writing a long persuasion letter. JAP editors don't need three paragraphs explaining why your work advances the frontiers of science. State the subfield, the applied result, and the method. Keep the letter under one page.

After submission

After submitting through AIP Publishing's online system, expect the following timeline:

  • Editorial triage: Approximately 1-2 weeks. The editor confirms the paper falls within JAP's scope and assigns referees. Desk rejections are relatively rare given the broad scope, but papers with no applied component may be redirected.
  • Peer review: Typically 2 to 4 months for a first decision. JAP uses single-blind review (referees are anonymous, authors are not).
  • Decision outcomes: Accept, minor revision, major revision, or reject. Most accepted papers go through at least one revision round.
  • Production: After acceptance, proofs typically arrive within 2-4 weeks. AIP Publishing uses a continuous publication model, so articles appear online shortly after proof correction.

If you have not heard back after 3 months, a polite status inquiry through the submission system is appropriate.

In Our Pre-Submission Review Work with Manuscripts Targeting Journal of Applied Physics

In our pre-submission review work with manuscripts targeting Journal of Applied Physics, the most common cover-letter problem is that authors assume broad scope means low routing pressure. In practice, the broad scope makes routing more important, not less.

The first recurring failure is not naming the subfield clearly enough. JAP covers enough ground that a vague "applied physics" pitch creates unnecessary friction. Editors want to know quickly whether the paper belongs with thin films, magnetism, semiconductors, photonics, plasmas, acoustics, soft matter, or another applied-physics lane.

The second failure is not making the JAP versus APL distinction explicit enough. Many manuscripts in this lane are technically sound but still read like a letter expanded into a full article. The cover letter should explain why the fuller treatment matters, whether that is the amount of data, the theoretical development, or the need for a complete experimental comparison rather than a single fast result.

The third failure is calling something applied without naming the application consequence. JAP editors are generally tolerant on novelty compared with prestige physics journals, but they still want a concrete applied reason the work matters. Device performance, process relevance, measurement capability, or engineering use should be visible in the letter.

A JAP cover letter and scope check is the fastest way to test whether the routing and journal-fit argument are actually clear before submission.

Submit If / Think Twice If

Submit if:

  • the letter can name the exact applied-physics subfield in sentence one
  • the manuscript has a real applied angle, not just general physical interest
  • the fuller article length is justified compared with Applied Physics Letters
  • the main result includes a concrete performance, property, or capability change that matters outside pure theory

Think twice if:

  • the best version of the paper is really a shorter letter for APL
  • the contribution is mostly fundamental physics with no strong applied consequence
  • the subfield fit is still fuzzy after reading the journal scope
  • the cover letter cannot explain why the manuscript needs JAP's longer full-article format

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AIP cover letter requirements for JAP

Keep the letter concise, but make the routing job easy. Editors are usually screening for three things first: the subfield, the applied relevance, and why the manuscript belongs in a full-length JAP article rather than a shorter communication venue.

A JAP cover letter and desk-rejection risk check scores fit against the journal's editorial bar.

Before you submit

A JAP cover letter and submission readiness check identifies the specific framing issues that trigger desk rejection before you submit.

Last verified against current AIP Publishing journal pages and JCR-backed metrics context.

Frequently asked questions

Approximately 40 to 50 percent.

APL publishes 4-page letters with immediate applied significance. JAP publishes longer, more detailed articles with no page limit.

AIP Publishing's online submission system.

Typically 2 to 4 months.

References

Sources

  1. 1. Journal of Applied Physics author guidelines, AIP Publishing.
  2. 2. Journal of Applied Physics - aims and scope, AIP Publishing.
  3. 3. AIP Publishing journals and peer review overview, AIP Publishing.

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